[avahi] Ethernet bridge problem.

[Lennart Poettering]

On Sat, 06.12.08 14:07, Matt Connolly (matt at soundevolution.com.au) wrote:

> Hi all,
> 
> I have a strange problem getting a Max OS X (10.5) machine talking to  
> a Ubuntu Server (8.10 amd64) via bonjour / avahi.
> 
> Everything works fine with the machines are connected like this:
> 
> Router --- ethernet --- ubuntu server
> Router --- ethernet --- mac laptop
> 
> However, avahi and bonjour don't talk when connected like this:
> 
> Router --- ethernet --- ubuntu server
> Router --- wireless --- mac laptop
> 
> Every other aspect of the network is working. HTTP, FTP, SSH between  
> the machines and the outside world via the router.
> 
> I suspected that there may be a bug in the router that is not passing  
> UDP packets across the bridge from ethernet to wireless, but I tried a  
> simple python program to send and receive multicast packets, it works  
> with no problems. ie: sending multicast across the bridge works both  
> ways.
> 
> Just to make things *really* confusing, if I enable ip6 in the avahi  
> config, then browsing works.

> Would there be some bug in the IP4 implementation of Avahi that is not  
> present in the IP6 implementation?

Unlikely. Ther codepaths are mostly the same. It might rather be the
other way round.

Maybe you are running a firewall?

Lennart

-- 
Lennart Poettering                        Red Hat, Inc.
lennart [at] poettering [dot] net         ICQ# 11060553
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