Multicast DNS (mDNS) discovery

[TheOldPresbyope]

What is the output from the ifconfig command?

(I'm out the rest of my afternoon to volunteer at local high school so won't respond further til tonight)

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.85  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 2601:143:500:499c:b732:a618:cd39:91d2  prefixlen 64  scopeid 0x0<global>
        inet6 fe80::14bf:8d14:fe32:2f87  prefixlen 64  scopeid 0x20<link>
        ether b8:27:eb:27:31:3b  txqueuelen 1000  (Ethernet)
        RX packets 804785  bytes 857073719 (817.3 MiB)
        RX errors 0  dropped 140  overruns 0  frame 0
        TX packets 378427  bytes 53348227 (50.8 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 65538  bytes 19632397 (18.7 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 65538  bytes 19632397 (18.7 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Hmmm. Compared to my moOde players running at the moment---one WiFi, one ethernet---You have an extra IPv6 interface:

Code:

inet6 2601:143:500:499c:b732:a618:cd39:91d2  prefixlen 64  scopeid 0x0<global>

Any idea what could be setting up this interface?

Regards,
Kent