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 From:  Lee Sharp <leesharp at hal dash pc dot org>
 To:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] FTP Server to LAN1 and LAN2 problem
 Date:  Sat, 10 Feb 2007 23:34:25 -0600
John Hakk wrote:
> I recently added a forth NIC for a FTP server that I want LAN1 and LAN2 to have access to but am
having problems configuring.
> interface set-up:
> WAN  gateway
> LAN1
> LAN2
> FTP server
> (no access between LAN1 and LAN2)
> If I bridge the FTP server interface with either LAN1 or LAN2 the bridged LAN can access the FTP
Server but I would prefer to not have to change the bridge selection each time I want to access the
Server from the other (non-bridged) LAN.
> I have tried numerous rules but have not hit upon the right configuration.  I was thinking "static
routes" but do not seem to get any where. "Block private networks" seems appropriate but toggling
on/off does not seem to change things.
> I would assume a rule such as * - FTP Server - * -* -* on the FTP Server interface would allow
access to/from any other interface on the unit. True?

Filters work on the way IN to the firewall.  You need a rule on the LAN1 
and LAN2 interfaces al;lowing access to the FTP server, and a rule on 
the FTP LAN allowing access to LAN1 and LAN2.