I use avahi to locate services on my local network. It works great.

I have one laptop with its ethernet connection set up to share its wifi connection to other computers. The other computer is a RaspberryPi connected via a cross-over cable. The Pi can access the internet via the laptop's shared connection. The Pi on a 10.42.0.* subnet and the other local machines are on 192.168.1.*. That works great too.

However, the Pi cannot access the other local avahi servers by service name, i.e. "server.local". Using the zeroconf browser, the Pi only sees its laptop host and itself. However the laptop sees the Pi and all the other servers, although the zeroconf browser shows them on different wifi and ethernet connection domains.

Interestingly, the Pi can access the other servers using their 192.168.1.* ip addresses. The avahi browser is not getting past the laptop.

Is there a avahi setting that will aloow it to see all the local services?

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Well I found the simple solution in plain sight.

In the /etc/avahi/avahi-daemon.conf file, on the laptop, set enable-reflector=yes and reload/restart the avahi-daemon. The laptop will "reflect" the avahi messages through both network interfaces.

The services on my Pi are now visible to the rest of the local network, and vice-verse.