[avahi] received conflicting record

[folkert]

> I made a program which sends an mDNS announcement every 121 seconds.
> The TTL is 120 seconds.
> 
> Yet every time avahi (with --debug) complains about:
> 
> dec 07 10:27:54 lappiemctopface avahi-daemon[937]: Received conflicting
> record [_apple-midi._udp.local        IN        PTR
> mymdnstest._apple-midi._udp.local ; ttl=120]. Resetting our record.
> 
> I've uploaded a pcap:
> https://vps001.vanheusden.com/~folkert/mdns.pcap
> (text dump: https://vps001.vanheusden.com/~folkert/mdns.txt )
> 
> Anyone an idea what is going wrong?

I just verified that I get this error already on the first packet.

So I start avahi-daemon, let the other program send the mdns message
once and immediately avahi complains about a conflicting record.