Regarding the gre tunnel, does the IP address on the the gre0 interface have to be unique, or can it be the same address, or a dot1q trunked address? I was hoping to use one physical network interface to do the GRE tunnel and the squid daemon. This would require subinterfaces and dot1q trunking/vlan tagging on both the router and the squid box if I am to use unique IP addresses, much less IP addresses on different IP subnets.
Nick
