In my Network I have 2 different gateways. Lets call it A and B. A is a firewall and B is a NetScreen device.
To A is attached a Server (S1) which runs SMTP and a VPN Server. Through B I am connected to my Corporate WAN which also gives us access to our emails.
I have another server S2 running some databases. A user connects to our Network via VPN through the INternet and gets access to Server S2. However, with the same connection he does not get access to the Corporate email.
When I change the Default Gateway on Server S1 to that of B, then the user is able to access the corporate emails as well as access the databases on Server S2. But, the down side of this is that the SMTP service on S1 does not seem to be up. (tried telnet from a machine on the internet which did not work)
Is there a way where I can achieve all three - 1. Access Databases on S2, 2. Access corporate emails via the WAN and 3. Keep the SMTP service on S1 in a working mode.