DutchDaemon said:I see no reason why Squid would listen twice.
Do note that this is rather strange:
Code:ifconfig_age0="inet 192.168.1.2 netmask 255.255.255.0" ifconfig_bridge0_alias0="inet 192.168.1.3 netmask 255.255.255.0"
You shouldn't have the same network on two different interfaces. Drop one of these and try again. I don't think you need an IP on the bridge, unless you're running a service on it. The IP on the age0 interface is enough to get access to the server for e.g. ssh.
Might be a bit of use (from the Handbook):
If the bridge host needs an IP address then the correct place to set this is on the bridge interface itself rather than one of the member interfaces.