I've been using m0n0wall for years, but. . .
(m0n0wall 1.231 using generic-pc image): After enabling the DNS forwarder,
clients (both internal AND external) could no longer access the server using
a secondary public IP (Server NAT with proxy ARP). Request for the website,
from internal, would get stuck in an infinite loop
Problem goes away after turning DNS Forwarder off. This is really weird and
I'm hoping its something really simple. . . Is there anything anyone can
think of that could cause this type of thing?