That sounds like a configuration issue with NAT. I have not personally used any of the 2.4 iptables, but with ipchains this was relatively easy.
Your firewall could be setup to masquerade any non-local addresses out onto the net, specifically any in the "user-port" range to outside port 25. The only ones that need to be forwarded to your SMTP server are those asking for the Internet/Firewall (external) IP address coming from outside. Is it possible to set NAT up so that it only forwards the external NIC? Elizabeth Alex Malinovich <[EMAIL PROTECTED]> writes: > --=-5qzpX8V1HTIzK6wazYqD > Content-Type: text/plain > Content-Transfer-Encoding: quoted-printable > > I'm having a bit of a problem with my NAT setup here. I've got a machine > running NAT for the rest of the computers on the LAN to get internet > access. The NAT server (bigbrother) forwards ports 143 and 25 (IMAP and > SMTP) to my mail server (gandalf). This works fine for outside > connections, and connecting directly to gandalf works fine internally. > However, if I try to connect to mail.the-love-shack.net from BEHIND the > NAT box, the connection never gets made. Apparently, ports don't get > forwarded from internal connections. This isn't a big problem for the > most part, but it makes accessing my mail from my laptop a pain in the > rear end. Having to open up Evolution and reconfigure the mail settings > each time I leave or come back home is really annoying. The first idea > that comes to mind is coming up with some way to create an entry for > "mail.the-love-shack.net" in my LOCAL Forward Lookup zone that points to > "gandalf" leaving the EXTERNAL entry for mail.the-love-shack.net intact. > Is there any way to do this, or is there a better way to go about > solving this problem? TIA
