Firstly a huge thanks to Manuel for an such an excellent firewall :o)
I've been testing m0n0wall (1.1b17 & 1.1 on WRAP boards and Soekris
4801's) as a filtering bridge and have had a few odd things happening.
I've found it real difficult to allow active ftp through a filtering
bridge (WAN and OPT1 Bridged, with the ftp server on the OPT1 side of
the connection), sometimes it works ok, but mainly it doesn't. It shows
the port 20 traffic as being blocked even though there is a rule on the
correct interface for it. I am always able to connect, but rarely able
to issue an "ls" command, so it's certain it's the ftp data side of
things that has the issue. I've noticed this for other types of traffic
too.. particularly DNS, although interestingly with port 53 udp is shown
as being blocked i'm pretty sure that it actually isn't. The main
problem i am having though is sometimes when i disable the filtering
bridge, it stays in operation (eg keeps filtering) until the firewall is
rebooted. Just wondering if anyone else has seen these issues (and
hopefully can point me in the direction of what i am doing wrong). I
realise this is all a bit generalised without me posting configs and
logs, but really i just wanted to know if anyone was having similar
problems first of all; although i can certainly post configs etc if
requested. In any case, i'll be doing a lot more testing over the next
couple of weeks with filtering bridge configurations.
Thankyou in advance.