[avahi] Linsys E4200: Received response with invalid source port

[Christiano F. Haesbaert]

On 18 July 2011 15:01, Eric Martel <shrodi+avahi at gmail.com> wrote:
>
> But doesn't the draft also specify that "Multicast DNS implementations
> MUST silently ignore any Multicast DNS Responses they receive where the
> source UDP port is not 5353."? Shouldn't avahi therefore ignore thos
> responses instead of reporting them? Is there a way for me to tell it so?
>

It is ignoring, in the way that is not considering it a valid answer,
but it is reporting.

Now "silent" I'd say it's just semantics, it's nice to have a warning
or a message that "something weird is happening", it does not affect
the system at all. When the draft says "silently" it implies "nothing
should be done", logging the event is a nice thing IMHO, you would
spend a lot more time to conclude this fact if it was not for the
reporting.

Use tcpdump and verify that avahi is correct (ie: source port is
wrong), if it is, it's your router's fault.
I don't know much of avahi, I only know mdns quite well.