On 23-Dec-08, at 4:25 PM, Lennart Poettering wrote:

On Tue, 23.12.08 14:32, Brian McKee (m...@map-heb.com) wrote:

On 23-Dec-08, at 2:24 PM, Brian McKee wrote:


On 23-Dec-08, at 1:53 PM, Lennart Poettering wrote:
If Avahi services only show up initially but then go away this sounds a lot as if you'd have some kind of firewall running or some hardware
issue that disallows mDNS multicast packets (udp port 5353) to be
received by your computer but allows them to be sent.

Ah - ok - that gives me something to chew on.  I'll report back.

Yep - I bet that was it - I haven't left it running long enough to prove
for sure, but the firewall wasn't opened correctly.  Thought I'd done
that earlier :-(

Do I need the entire 224.0.0.0/4 open?  or can I tighten that down a
bit?  Just 224.0.0.251 didn't seem to be enough.

You need to allow mDNS traffic to port 5353 coming from any host on
the LAN and going to any host on the local LAN or going to the mDNS
group 224.0.0.251.

Just as a partial update to this issue. The problem seems to be on the Mac side, not Avahi. Have dropped for now.

Brian

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