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Brother MFC-L2700DW WSD not working #154

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degenkolb opened this issue Jun 25, 2021 · 3 comments
Open

Brother MFC-L2700DW WSD not working #154

degenkolb opened this issue Jun 25, 2021 · 3 comments

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@degenkolb
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Hi,

in your Readme it says WSD is working for the MFC-L2700DW series but I don't get it to work.

airscan-discover -d mentions the IP of my scanner but apparently fails to find the WSD port.

Can you tell me whats wrong? On the device in the admin web interface under Network > Protocol "Network Scan" is checked.

An nmap on the device shows the following open ports

$ nmap -p 1-65000 192.168.1.11
Starting Nmap 7.80 ( https://nmap.org ) at 2021-06-25 22:08 CEST
Nmap scan report for 192.168.1.11
Host is up (0.060s latency).
Not shown: 64991 closed ports
PORT      STATE SERVICE
23/tcp    open  telnet
80/tcp    open  http
443/tcp   open  https
515/tcp   open  printer
631/tcp   open  ipp
9100/tcp  open  jetdirect
54921/tcp open  unknown
54922/tcp open  unknown
54923/tcp open  unknown

Nmap done: 1 IP address (1 host up) scanned in 45.51 seconds

and the content of the airscan-discover-zeroconf.log is

00:00:00.001: zeroconf: zeroconf configuration:
00:00:00.001: zeroconf:   discovery    = enable
00:00:00.001: zeroconf:   model        = network
00:00:00.001: zeroconf:   protocol     = manual
00:00:00.001: zeroconf:   ws-discovery = full
00:00:00.010: MDNS: AVAHI_CLIENT_S_RUNNING
00:00:00.019: WSDD: netif addresses update:
00:00:00.019: WSDD:  + 192.168.1.104
00:00:00.019: WSDD:  + fe80::4e15:d315:b09c:fa6d%2
00:00:00.020: WSDD: 192.168.1.104: started discovery, UDP port=53725
00:00:00.020: WSDD: probe sent: 192.168.1.104:53725->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:103e1687-c769-dc01-0005-4f075083b56c</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.022: WSDD: fe80::4e15:d315:b09c:fa6d: started discovery, UDP port=49422
00:00:00.023: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:49422->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:72b29276-85cd-2ecc-199d-28e59c47e5f7</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.025: MDNS: browse/ipv4 "Brother MFC-L2700DW series": AVAHI_BROWSER_NEW _ipp._tcp
00:00:00.029: MDNS: browse/ipv6: AVAHI_BROWSER_CACHE_EXHAUSTED _ipp._tcp
00:00:00.029: zeroconf: zeroconf_device_list_get: requested
00:00:00.029: zeroconf: device_list wait: requested
00:00:00.029: zeroconf: device_list wait: DNS-SD not finished...
00:00:00.029: MDNS: browse/ipv6: AVAHI_BROWSER_CACHE_EXHAUSTED _ipps._tcp
00:00:00.029: MDNS: browse/ipv6: AVAHI_BROWSER_CACHE_EXHAUSTED _uscan._tcp
00:00:00.030: MDNS: browse/ipv6: AVAHI_BROWSER_CACHE_EXHAUSTED _uscans._tcp
00:00:00.031: MDNS: browse/ipv4 "Brother MFC-L2700DW series": AVAHI_BROWSER_NEW _scanner._tcp
00:00:00.034: MDNS: browse/ipv6: AVAHI_BROWSER_CACHE_EXHAUSTED _scanner._tcp
00:00:00.151: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:49422->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:c0bcad92-3f23-c2b3-7374-beb5e725cb62</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.210: WSDD: probe sent: 192.168.1.104:53725->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:b6a5694d-66f2-8de6-a93f-3211db9955af</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.242: MDNS: resolve/ipv4 "Brother MFC-L2700DW series": AVAHI_RESOLVER_FOUND _ipp._tcp
00:00:00.243: WSDD: directed probe: trying if=enxb827eb50fe0f, addr=192.168.1.11
00:00:00.243: WSDD: HTTP POST http://192.168.1.11/StableWSDiscoveryEndpoint/schemas-xmlsoap-org_ws_2005_04_discovery
00:00:00.243: WSDD: HTTP resolving 192.168.1.11 80
00:00:00.244: WSDD: HTTP trying 192.168.1.11:80
00:00:00.244: MDNS: resolve/ipv4 "Brother MFC-L2700DW series": AVAHI_RESOLVER_FOUND _scanner._tcp
00:00:00.245: zeroconf: found urn:uuid:e3248000-80ce-11db-8000-30055c5a88dd
00:00:00.245: zeroconf:   method:    ZEROCONF_MDNS_HINT
00:00:00.245: zeroconf:   interface: 2 (enxb827eb50fe0f)
00:00:00.245: zeroconf:   name:      Brother MFC-L2700DW series
00:00:00.245: zeroconf:   model:     Brother MFC-L2700DW series
00:00:00.245: zeroconf:   addresses:
00:00:00.245: zeroconf:     192.168.1.11
00:00:00.245: zeroconf:   device:    0000 (created)
00:00:00.245: WSDD: directed probe: trying if=enxb827eb50fe0f, addr=192.168.1.11
00:00:00.245: WSDD: directed probe: already in progress, skipping
00:00:00.245: zeroconf: device_list wait: DNS-SD not finished...
00:00:00.273: WSDD: HTTP 758 bytes sent
00:00:00.274: WSDD: HTTP done request sending
00:00:00.341: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:49422->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:79ff14db-0aef-8411-89c9-519f957bda05</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.422: WSDD: probe sent: 192.168.1.104:53725->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:05099a0f-13e1-06ac-9a2e-6aee357ec1c8</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.557: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:49422->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:a2366048-8bea-daec-df29-b24781e8948e</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.615: WSDD: probe sent: 192.168.1.104:53725->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:1a2b2633-14ec-a18a-f4e8-2829bfc77388</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.726: WSDD: probe sent: 192.168.1.104:53725->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:d65c8b13-ecce-1d4c-b918-989ac1c719ff</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.770: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:49422->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:22c3e094-271a-0062-5ff0-8a79d3876c6a</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.863: WSDD: probe sent: 192.168.1.104:53725->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:62018617-6f44-1c64-5b4c-7f6ba94557e8</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.929: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:49422->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:580e38d6-5918-a617-252b-8647fc2a372b</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.021: WSDD: probe sent: 192.168.1.104:53725->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:1476beba-d6f0-cccd-7a1b-8922db9c6c8c</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.024: MDNS: browse/ipv6: AVAHI_BROWSER_ALL_FOR_NOW _ipp._tcp
00:00:01.774: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:49422->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:5a04807e-fc80-ce8b-0028-30323cd4fc92</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.774: WSDD: probe sent: 192.168.1.104:53725->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:35f79024-e4d2-8b61-9993-d62f8d81066b</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.775: MDNS: browse/ipv6: AVAHI_BROWSER_ALL_FOR_NOW _ipps._tcp
00:00:01.775: MDNS: browse/ipv6: AVAHI_BROWSER_ALL_FOR_NOW _uscan._tcp
00:00:01.775: zeroconf: ZEROCONF_USCAN_TCP: initial scan finished
00:00:01.776: zeroconf: device_list wait: DNS-SD not finished...
00:00:01.776: MDNS: browse/ipv6: AVAHI_BROWSER_ALL_FOR_NOW _uscans._tcp
00:00:01.776: zeroconf: ZEROCONF_USCANS_TCP: initial scan finished
00:00:01.776: MDNS: browse/ipv6: AVAHI_BROWSER_ALL_FOR_NOW _scanner._tcp
00:00:01.776: zeroconf: ZEROCONF_MDNS_HINT: initial scan finished
00:00:01.776: zeroconf: device_list wait: WSDD not finished...
00:00:01.919: WSDD: probe sent: 192.168.1.104:53725->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:5aa7e544-cad8-10d7-21bf-30fe589dd39a</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.948: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:49422->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:66905cdf-da6a-8db5-8d51-c5f67532ec30</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.086: WSDD: probe sent: 192.168.1.104:53725->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:125665f3-808b-7b1b-5ff9-20c328fa5d91</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.166: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:49422->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:ea90cddf-a6a8-5c7a-3961-0ba1490298b4</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.240: WSDD: probe sent: 192.168.1.104:53725->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:80b975b3-1d92-1cdd-a10d-a915cca91bb3</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.352: WSDD: probe sent: 192.168.1.104:53725->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:0df5bc22-11e5-1582-d839-ba6c980a82f7</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.405: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:49422->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:b2e1feb8-706e-e383-c980-024e6726d38a</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.542: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:49422->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:68af01fe-eaae-a533-12fc-313311d34658</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.582: WSDD: probe sent: 192.168.1.104:53725->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:f41eda66-8632-1e2d-9b3c-9b709322e5e6</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.689: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:49422->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:adb5df96-f5b2-3097-3e3a-701acf34b719</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.718: WSDD: probe sent: 192.168.1.104:53725->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:dcccdcde-708e-5a15-d97a-fab7f97c612a</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.832: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:49422->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:a8ce278b-cd0a-bb5f-606c-bcfb65ca721c</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.866: WSDD: probe sent: 192.168.1.104:53725->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:724c7b20-5636-a134-54fe-479cd135052e</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.973: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:49422->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:881aef99-7c83-fde7-c392-087fb3cfd058</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:03.114: WSDD: 192.168.1.104: done discovery
00:00:03.177: WSDD: fe80::4e15:d315:b09c:fa6d: done discovery
00:00:03.177: zeroconf: ZEROCONF_WSD: initial scan finished
00:00:03.177: zeroconf: device_list wait: OK
00:00:03.177: zeroconf: zeroconf_device_list_get: building list of devices
00:00:03.177: zeroconf: Brother MFC-L2700DW series (0): can: none, use: none
00:00:03.177: zeroconf: Brother MFC-L2700DW series (0): skipping, none of supported protocols discovered
00:00:03.177: zeroconf: zeroconf_device_list_get: resulting list:

The following sane-airscane version is in use.

$ apt show sane-airscan 
Package: sane-airscan
Version: 0.99.24-1
Priority: optional
Section: graphics
Maintainer: Debian Printing Team <debian-printing@lists.debian.org>
Installed-Size: 371 kB
Depends: libavahi-client3 (>= 0.6.16), libavahi-common3 (>= 0.6.16), libc6 (>= 2.29), libgnutls30 (>= 3.7.0), libjpeg62-turbo (>= 1.3.1), libpng16-16 (>= 1.6.2-1), libxml2 (>= 2.7.4)
Recommends: ipp-usb, sane-utils
Homepage: https://github.com/alexpevzner/sane-airscan
Download-Size: 97,8 kB
APT-Manual-Installed: yes
APT-Sources: http://mirrordirector.raspbian.org/raspbian bullseye/main armhf Packages

I already tried different device strings in the form of

[devices]
"MFC-L2700DW 54921" = http://192.168.1.11:54921, WSD
"MFC-L2700DW 54922" = http://192.168.1.11:54922, WSD
"MFC-L2700DW 54923" = http://192.168.1.11:54923, WSD

but nothing worked.

Let me know what else I should check.
@degenkolb
Copy link
Author

An update

with

$ apt show sane-airscan 
Package: sane-airscan
Version: 0.99.26-1+86.6
Status: install ok installed
Priority: optional
Section: graphics
Maintainer: Alexander Pevzner <pzz@apevzner.com>
Installed-Size: 362 kB
Depends: libavahi-client3 (>= 0.6.16), libavahi-common3 (>= 0.6.16), libc6 (>= 2.17), libgnutls30 (>= 3.6.6), libjpeg62-turbo (>= 1.3.1), libpng16-16 (>= 1.6.2-1), libxml2 (>= 2.7.4), zlib1g (>= 1:1.1.4)
Homepage: https://github.com/alexpevzner/sane-airscan
Download-Size: unknown
APT-Manual-Installed: yes
APT-Sources: /var/lib/dpkg/status
Description: SANE backend for MFP and document scanners that
 implements either eSCL (AirScan/AirPrint scanning) or WSD "driverless"
 scanning protocol

I get the following airscan-discover-zeroconf.log

00:00:00.001: zeroconf: zeroconf configuration:
00:00:00.001: zeroconf:   discovery    = enable
00:00:00.001: zeroconf:   model        = network
00:00:00.001: zeroconf:   protocol     = manual
00:00:00.001: zeroconf:   ws-discovery = full
00:00:00.010: MDNS: AVAHI_CLIENT_S_RUNNING
00:00:00.019: WSDD: netif addresses update:
00:00:00.019: WSDD:  + 192.168.1.104
00:00:00.019: WSDD:  + fe80::4e15:d315:b09c:fa6d%2
00:00:00.019: WSDD: 192.168.1.104: started discovery, UDP port=49210
00:00:00.019: WSDD: probe sent: 192.168.1.104:49210->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:aad42b22-9a02-899e-9060-322526a7d2bf</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.021: WSDD: fe80::4e15:d315:b09c:fa6d: started discovery, UDP port=34594
00:00:00.021: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:34594->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:c0caf00f-b96e-9b28-f514-4353e38249cf</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.025: zeroconf: zeroconf_device_list_get: requested
00:00:00.025: zeroconf: device_list wait: requested
00:00:00.025: zeroconf: device_list wait: DNS-SD not finished...
00:00:00.026: MDNS: browse-ipv4("_ipp._tcp"): AVAHI_BROWSER_NEW
00:00:00.026: MDNS: browse-ipv4("_ipp._tcp"): "Brother MFC-L2700DW series"
00:00:00.032: MDNS: browse-ipv6("_ipp._tcp"): AVAHI_BROWSER_CACHE_EXHAUSTED
00:00:00.033: MDNS: browse-ipv6("_ipps._tcp"): AVAHI_BROWSER_CACHE_EXHAUSTED
00:00:00.034: MDNS: browse-ipv6("_uscan._tcp"): AVAHI_BROWSER_CACHE_EXHAUSTED
00:00:00.035: MDNS: browse-ipv6("_uscans._tcp"): AVAHI_BROWSER_CACHE_EXHAUSTED
00:00:00.036: MDNS: browse-ipv4("_scanner._tcp"): AVAHI_BROWSER_NEW
00:00:00.036: MDNS: browse-ipv4("_scanner._tcp"): "Brother MFC-L2700DW series"
00:00:00.041: MDNS: browse-ipv6("_scanner._tcp"): AVAHI_BROWSER_CACHE_EXHAUSTED
00:00:00.240: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:34594->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:6879982c-7dcf-e704-a29e-156ae34c08c9</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.258: MDNS: resolve-ipv4("_ipp._tcp", "Brother MFC-L2700DW series"): AVAHI_RESOLVER_FOUND
00:00:00.259: MDNS: resolve-ipv4("_ipp._tcp", "Brother MFC-L2700DW series"): 192.168.1.11:631
00:00:00.261: WSDD: directed probe: trying if=enxb827eb50fe0f, addr=192.168.1.11
00:00:00.261: WSDD: HTTP POST http://192.168.1.11/StableWSDiscoveryEndpoint/schemas-xmlsoap-org_ws_2005_04_discovery
00:00:00.261: WSDD: HTTP resolving 192.168.1.11 80
00:00:00.262: WSDD: HTTP trying 192.168.1.11:80
00:00:00.262: WSDD: HTTP fdpoll: {--} -> {-w}
00:00:00.262: MDNS: resolve-ipv4("_scanner._tcp", "Brother MFC-L2700DW series"): AVAHI_RESOLVER_FOUND
00:00:00.262: MDNS: resolve-ipv4("_scanner._tcp", "Brother MFC-L2700DW series"): 192.168.1.11:54921
00:00:00.264: zeroconf: found urn:uuid:e3248000-80ce-11db-8000-30055c5a88dd
00:00:00.264: zeroconf:   method:    ZEROCONF_MDNS_HINT
00:00:00.264: zeroconf:   interface: 2 (enxb827eb50fe0f)
00:00:00.265: zeroconf:   name:      Brother MFC-L2700DW series
00:00:00.265: zeroconf:   model:     Brother MFC-L2700DW series
00:00:00.265: zeroconf:   addresses:
00:00:00.265: zeroconf:     192.168.1.11
00:00:00.265: zeroconf:   device:    0000 (created)
00:00:00.265: WSDD: directed probe: trying if=enxb827eb50fe0f, addr=192.168.1.11
00:00:00.265: WSDD: directed probe: already in progress, skipping
00:00:00.265: zeroconf: device_list wait: DNS-SD not finished...
00:00:00.269: WSDD: probe sent: 192.168.1.104:49210->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:d938ccca-8bd4-5d4e-3b74-d14c02e6bac1</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.305: WSDD: HTTP 758 bytes sent
00:00:00.305: WSDD: HTTP done request sending
00:00:00.305: WSDD: HTTP fdpoll: {-w} -> {rw}
00:00:00.306: WSDD: HTTP fdpoll: {rw} -> {r-}
00:00:00.418: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:34594->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:c8cf657a-5f07-329f-420c-164f9533988e</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.436: WSDD: probe sent: 192.168.1.104:49210->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:7ec8088e-635c-3aca-e2ab-d189bd2610d2</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.589: WSDD: probe sent: 192.168.1.104:49210->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:0ecb1975-ac2c-c836-c92a-61ac9b2a5c84</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.642: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:34594->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:0a1f0b95-c622-dead-dd99-1eabdc231ac4</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.762: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:34594->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:59626fa7-3b0a-6544-ff0b-5c4fd5293862</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.817: WSDD: probe sent: 192.168.1.104:49210->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:ad6ff482-1d02-201d-3609-fc600300855c</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.000: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:34594->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:75d468ff-7f01-90e4-cd89-1217441206c0</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.025: MDNS: browse-ipv6("_ipp._tcp"): AVAHI_BROWSER_ALL_FOR_NOW
00:00:01.025: MDNS: browse-ipv6("_ipps._tcp"): AVAHI_BROWSER_ALL_FOR_NOW
00:00:01.026: MDNS: browse-ipv6("_uscan._tcp"): AVAHI_BROWSER_ALL_FOR_NOW
00:00:01.026: zeroconf: ZEROCONF_USCAN_TCP: initial scan finished
00:00:01.026: zeroconf: device_list wait: DNS-SD not finished...
00:00:01.028: MDNS: browse-ipv6("_uscans._tcp"): AVAHI_BROWSER_ALL_FOR_NOW
00:00:01.028: zeroconf: ZEROCONF_USCANS_TCP: initial scan finished
00:00:01.028: zeroconf: device_list wait: DNS-SD not finished...
00:00:01.029: MDNS: browse-ipv6("_scanner._tcp"): AVAHI_BROWSER_ALL_FOR_NOW
00:00:01.029: zeroconf: ZEROCONF_MDNS_HINT: initial scan finished
00:00:01.029: zeroconf: device_list wait: WSDD not finished...
00:00:01.042: WSDD: probe sent: 192.168.1.104:49210->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:5883d3da-4ab0-a619-725e-de47eb2e8a01</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.145: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:34594->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:7a413e92-9e90-6568-8316-15c262135dbb</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.157: WSDD: probe sent: 192.168.1.104:49210->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:37c6aaf4-638b-2f86-13ac-dfda21967de5</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.363: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:34594->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:f016119e-679c-dc06-9046-f88983812cc5</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.372: WSDD: probe sent: 192.168.1.104:49210->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:cc040283-ddc7-2c90-5f81-3ccfcc3c0d19</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.489: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:34594->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:3fa01ede-04b9-adf9-1b6c-341271ad5490</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.543: WSDD: probe sent: 192.168.1.104:49210->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:6e4f3dc4-ac23-05c8-a854-92ebf48fbdf4</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.645: WSDD: probe sent: 192.168.1.104:49210->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:6d6a74a2-fe02-a16d-79de-fc46ac6babf6</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.663: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:34594->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:854e774c-dc72-b363-b8a5-cc7cca63ca17</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.803: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:34594->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:82f86650-85b1-9c52-0f13-ed50f8901c24</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.819: WSDD: probe sent: 192.168.1.104:49210->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:4b8b6fb8-31dc-9c23-5f1f-d0d50b698867</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.975: WSDD: probe sent: 192.168.1.104:49210->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:5f202071-4d8f-4ad6-24ca-c71034a85929</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.993: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:34594->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:45a1fa2a-8e44-3005-92ec-68a815779c4b</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.099: WSDD: probe sent: 192.168.1.104:49210->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:1f50ed40-2b67-ad15-ae3e-30ea401aef20</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.135: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:34594->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:b1fbc762-ad77-99a0-f500-485ecc65a493</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.290: WSDD: probe sent: 192.168.1.104:49210->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:db6aa570-751b-6547-6672-2e4b7b85cea1</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.361: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:34594->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:2f5684c7-3140-47f2-d3a9-6cf57ec66af2</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.535: WSDD: 192.168.1.104: done discovery
00:00:02.536: WSDD: fe80::4e15:d315:b09c:fa6d: done discovery
00:00:02.536: zeroconf: ZEROCONF_WSD: initial scan finished
00:00:02.536: zeroconf: device_list wait: OK
00:00:02.536: zeroconf: zeroconf_device_list_get: building list of devices
00:00:02.537: zeroconf: Brother MFC-L2700DW series (0): can: none, use: none
00:00:02.537: zeroconf: Brother MFC-L2700DW series (0): skipping, none of supported protocols discovered
00:00:02.537: zeroconf: zeroconf_device_list_get: resulting list:
00:00:02.537: WSDD: HTTP POST http://192.168.1.11/StableWSDiscoveryEndpoint/schemas-xmlsoap-org_ws_2005_04_discovery: Cancelled
00:00:02.543: zeroconf: device gone urn:uuid:e3248000-80ce-11db-8000-30055c5a88dd
00:00:02.543: zeroconf:   method:    ZEROCONF_MDNS_HINT
00:00:02.543: zeroconf:   interface: 2 (enxb827eb50fe0f)

@degenkolb
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degenkolb commented Jun 25, 2021 •
edited
Loading

And with

$ apt show sane-airscan-unstable
Package: sane-airscan-unstable
Version: 1620822232-1+21.6
Status: install ok installed
Priority: optional
Section: graphics
Maintainer: Alexander Pevzner <pzz@apevzner.com>
Installed-Size: 371 kB
Depends: libavahi-client3 (>= 0.6.16), libavahi-common3 (>= 0.6.16), libc6 (>= 2.17), libgnutls30 (>= 3.6.6), libjpeg62-turbo (>= 1.3.1), libpng16-16 (>= 1.6.2-1), libtiff5 (>= 4.0.3), libxml2 (>= 2.7.4), zlib1g (>= 1:1.1.4)
Homepage: https://github.com/alexpevzner/sane-airscan-unstable

this

00:00:00.005: zeroconf: zeroconf configuration:
00:00:00.005: zeroconf:   discovery    = enable
00:00:00.005: zeroconf:   model        = network
00:00:00.005: zeroconf:   protocol     = manual
00:00:00.005: zeroconf:   ws-discovery = full
00:00:00.015: MDNS: AVAHI_CLIENT_S_RUNNING
00:00:00.024: WSDD: netif addresses update:
00:00:00.024: WSDD:  + 192.168.1.104
00:00:00.024: WSDD:  + fe80::4e15:d315:b09c:fa6d%2
00:00:00.024: WSDD: 192.168.1.104: started discovery, UDP port=52049
00:00:00.024: WSDD: probe sent: 192.168.1.104:52049->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:ffc60298-4480-b586-06ca-c553da7f0f89</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.026: WSDD: fe80::4e15:d315:b09c:fa6d: started discovery, UDP port=47645
00:00:00.026: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:47645->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:46aecc69-2ccd-9060-4f48-9a5fb60cc763</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.027: zeroconf: zeroconf_device_list_get: requested
00:00:00.027: zeroconf: device_list wait: requested
00:00:00.030: zeroconf: device_list wait: DNS-SD not finished...
00:00:00.032: MDNS: browse-ipv4("_ipp._tcp"): AVAHI_BROWSER_NEW
00:00:00.032: MDNS: browse-ipv4("_ipp._tcp"): "Brother MFC-L2700DW series"
00:00:00.036: MDNS: browse-ipv6("_ipp._tcp"): AVAHI_BROWSER_CACHE_EXHAUSTED
00:00:00.036: MDNS: browse-ipv6("_ipps._tcp"): AVAHI_BROWSER_CACHE_EXHAUSTED
00:00:00.037: MDNS: browse-ipv6("_uscan._tcp"): AVAHI_BROWSER_CACHE_EXHAUSTED
00:00:00.037: MDNS: browse-ipv6("_uscans._tcp"): AVAHI_BROWSER_CACHE_EXHAUSTED
00:00:00.037: MDNS: browse-ipv4("_scanner._tcp"): AVAHI_BROWSER_NEW
00:00:00.037: MDNS: browse-ipv4("_scanner._tcp"): "Brother MFC-L2700DW series"
00:00:00.040: MDNS: browse-ipv6("_scanner._tcp"): AVAHI_BROWSER_CACHE_EXHAUSTED
00:00:00.200: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:47645->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:54fda99a-2928-5877-b807-058f3cc3475e</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.238: WSDD: probe sent: 192.168.1.104:52049->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:65497041-992c-f6f2-9976-905f810e8800</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.248: MDNS: resolve-ipv4("_ipp._tcp", "Brother MFC-L2700DW series"): AVAHI_RESOLVER_FOUND
00:00:00.248: MDNS: resolve-ipv4("_ipp._tcp", "Brother MFC-L2700DW series"): 192.168.1.11:631
00:00:00.249: WSDD: directed probe: trying if=enxb827eb50fe0f, addr=192.168.1.11
00:00:00.249: WSDD: HTTP POST http://192.168.1.11/StableWSDiscoveryEndpoint/schemas-xmlsoap-org_ws_2005_04_discovery
00:00:00.249: WSDD: HTTP resolving 192.168.1.11 80
00:00:00.249: WSDD: HTTP trying 192.168.1.11:80
00:00:00.249: WSDD: HTTP fdpoll: {--} -> {-w}
00:00:00.250: MDNS: resolve-ipv4("_scanner._tcp", "Brother MFC-L2700DW series"): AVAHI_RESOLVER_FOUND
00:00:00.250: MDNS: resolve-ipv4("_scanner._tcp", "Brother MFC-L2700DW series"): 192.168.1.11:54921
00:00:00.250: zeroconf: found urn:uuid:e3248000-80ce-11db-8000-30055c5a88dd
00:00:00.250: zeroconf:   method:    ZEROCONF_MDNS_HINT
00:00:00.250: zeroconf:   interface: 2 (enxb827eb50fe0f)
00:00:00.251: zeroconf:   name:      Brother MFC-L2700DW series
00:00:00.251: zeroconf:   model:     Brother MFC-L2700DW series
00:00:00.251: zeroconf:   addresses:
00:00:00.251: zeroconf:     192.168.1.11
00:00:00.251: zeroconf:   device:    0000 (created)
00:00:00.251: WSDD: directed probe: trying if=enxb827eb50fe0f, addr=192.168.1.11
00:00:00.251: WSDD: directed probe: already in progress, skipping
00:00:00.251: zeroconf: device_list wait: DNS-SD not finished...
00:00:00.278: WSDD: HTTP 758 bytes sent
00:00:00.278: WSDD: HTTP done request sending
00:00:00.278: WSDD: HTTP fdpoll: {-w} -> {rw}
00:00:00.278: WSDD: HTTP fdpoll: {rw} -> {r-}
00:00:00.406: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:47645->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:eda72bcc-e8ff-6f8c-cf65-e973ee822a93</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.430: WSDD: probe sent: 192.168.1.104:52049->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:3c7ded02-d2d9-ab41-4389-671b0fe107e4</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.548: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:47645->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:5be34978-a1d7-1ff5-6890-8c6eb02d93c3</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.634: WSDD: probe sent: 192.168.1.104:52049->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:555abd3c-f8a1-f124-e516-71fbaa9763bd</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.734: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:47645->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:8a8a530f-e7e8-151e-f4b1-7824e3b12cfd</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.864: WSDD: probe sent: 192.168.1.104:52049->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:e35d6c9e-17f8-850c-baf8-45eb58b3d097</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:00.901: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:47645->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:6b8997dc-c23f-8ed7-5759-95364f08abed</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.029: MDNS: browse-ipv6("_ipp._tcp"): AVAHI_BROWSER_ALL_FOR_NOW
00:00:01.030: MDNS: browse-ipv6("_ipps._tcp"): AVAHI_BROWSER_ALL_FOR_NOW
00:00:01.032: MDNS: browse-ipv6("_uscan._tcp"): AVAHI_BROWSER_ALL_FOR_NOW
00:00:01.032: zeroconf: ZEROCONF_USCAN_TCP: initial scan finished
00:00:01.032: zeroconf: device_list wait: DNS-SD not finished...
00:00:01.033: MDNS: browse-ipv6("_uscans._tcp"): AVAHI_BROWSER_ALL_FOR_NOW
00:00:01.033: zeroconf: ZEROCONF_USCANS_TCP: initial scan finished
00:00:01.033: zeroconf: device_list wait: DNS-SD not finished...
00:00:01.035: MDNS: browse-ipv6("_scanner._tcp"): AVAHI_BROWSER_ALL_FOR_NOW
00:00:01.035: zeroconf: ZEROCONF_MDNS_HINT: initial scan finished
00:00:01.035: zeroconf: device_list wait: WSDD not finished...
00:00:01.107: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:47645->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:e62d40fa-8263-a0ce-b31d-2bf554f04f03</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.116: WSDD: probe sent: 192.168.1.104:52049->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:082bb447-9a15-cdd4-01d5-284a7c573df0</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.233: WSDD: probe sent: 192.168.1.104:52049->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:7ed42090-e8bc-4be0-cd6c-11b351892b4b</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.276: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:47645->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:697045a8-e278-f3fa-1ed2-11871e74cb41</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.449: WSDD: probe sent: 192.168.1.104:52049->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:532d1195-e8c5-6f9d-3921-96893bc5e7e0</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.515: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:47645->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:9626f673-1953-c2ba-9316-deb3a6ca836a</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.647: WSDD: probe sent: 192.168.1.104:52049->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:b9860396-321b-b24e-3780-d65ff727784c</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.657: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:47645->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:97cea9ac-83f4-51ae-7a09-99247bd15b85</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.823: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:47645->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:4ddcda4b-bffa-6589-a10a-1276399569dc</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.869: WSDD: probe sent: 192.168.1.104:52049->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:c19049ca-77ce-39a1-9c98-f098fbf7979d</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:01.983: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:47645->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:faaa5674-e37a-c201-2635-cb0b89772e05</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.025: WSDD: probe sent: 192.168.1.104:52049->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:85fd6427-2f60-498e-6059-6560c1cae821</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.126: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:47645->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:69606f76-9532-de93-728c-fca293eb9ca1</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.159: WSDD: probe sent: 192.168.1.104:52049->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:1a0d6d52-b52e-cc52-5793-e90110ce7f19</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.275: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:47645->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:0527ad5f-3bfc-8ce7-5ec2-ba15323a91cf</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.327: WSDD: probe sent: 192.168.1.104:52049->239.255.255.250:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:2a03c07e-1896-5bff-6867-fc3d4ef43ff1</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.398: WSDD: probe sent: [fe80::4e15:d315:b09c:fa6d%2]:47645->[ff02::c]:3702
<s:Envelope xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
  <s:Header>
    <a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
    <a:MessageID>urn:uuid:28b53e1e-aa14-b3c9-2117-326518f83947</a:MessageID>
    <a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
  </s:Header>
  <s:Body>
    <d:Probe>
      <d:Types>wsdp:Device</d:Types>
    </d:Probe>
  </s:Body>
</s:Envelope>

00:00:02.538: WSDD: 192.168.1.104: done discovery
00:00:02.541: WSDD: fe80::4e15:d315:b09c:fa6d: done discovery
00:00:02.541: zeroconf: ZEROCONF_WSD: initial scan finished
00:00:02.541: zeroconf: device_list wait: OK
00:00:02.541: zeroconf: zeroconf_device_list_get: building list of devices
00:00:02.541: zeroconf: Brother MFC-L2700DW series (0): can: none, use: none
00:00:02.541: zeroconf: Brother MFC-L2700DW series (0): skipping, none of supported protocols discovered
00:00:02.541: zeroconf: zeroconf_device_list_get: resulting list:
00:00:02.542: WSDD: HTTP POST http://192.168.1.11/StableWSDiscoveryEndpoint/schemas-xmlsoap-org_ws_2005_04_discovery: Cancelled
00:00:02.548: zeroconf: device gone urn:uuid:e3248000-80ce-11db-8000-30055c5a88dd
00:00:02.549: zeroconf:   method:    ZEROCONF_MDNS_HINT
00:00:02.549: zeroconf:   interface: 2 (enxb827eb50fe0f)

@jomority
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Hey, I have the Brother MFC-L2700DN (which is similar except it doesn't have WiFi), and I had the same problem.

What solved it for me was enabling Web Services in the printer's web console under Network -> Protocol and the restarting the printer.

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@degenkolb @jomority