If I remember correctly, this issue was discussed on this mailing list a couple months back, and the "dual NAT" solution was posted. You might want to try doing a search with the terms "internal" and "DNS".
An-Cheng Alex Lee wrote: >> I created a NAT Rule that forwards all traffic on port 25 from the >> external ip address of xx.xx.xx.xx to the internal ip address of >> 10.10.30.xxx on port 25. My problem is that all workstations on the >> internal network 10.10.30.X connect resolve mail.domain.com to port 25 >> on the external ip address. >> >> Using a external email client out side the network from a remote client >> works with out issues. All the clients on the internal network have to >> be configures to connect to the server directly by using the internal ip >> addresss for that server in the smtp settings on their client. Any >> suggestions? >> > > I saw the responses from Justin and Alain, but thought this was an > interesting question. Is there not a way to NAT so that the external > address gets translated into the internal address when coming from the > internal network? I am sure we are doing this on our Checkpoint firewall. > Isn't this called Dual NAT? Just wondering. Thanks, > > Alex > _______________________________________________ > Vyatta-users mailing list > [email protected] > http://mailman.vyatta.com/mailman/listinfo/vyatta-users _______________________________________________ Vyatta-users mailing list [email protected] http://mailman.vyatta.com/mailman/listinfo/vyatta-users
