Is this a limitation of the current implementation of NAT in m0n0wall, or
something I am doing wrong? If I have proxy ARP set so that m0n0wall has
four WAN side IPs, and I enable incoming ICMP I can ping on the primary
address, but all the others return "no route to host". Ideally I would like
the choice of either responding to all ICMP queries from m0n0, or being able
to route to various internal hosts.