How to configure SBS 2003 / Exchange with two network cards
Posted on 2007-11-27
I have setup a Microsoft SBS Server with two network cards. What I want is the server to send all email through one of the network cards, and at the same time allow access to my intranet users through the other network card. Here is the current configuration:
Nework Card 1 (INTRANET): 192.168.2.50
The gateway is a Cisco 1800 Firewall/Router with VPN Access
Network Cards 2 (INTERNET): 200.XXX.XXX.50
The gateway is a Cisco PIX Firewall with ports 25 and 110 open
Exchange is listening on both NICS, however since a computer can only have one gateway, sometimes when I try to access port 25 and 110 on the Public, Internet Address, the services do not respond. If I remove the gateway from the INTRANET card, the services start responding and all internet traffic routed through that network card.
The issue here is that I need to be able to VPN into the 192.168.2.0 network with the CISCO vpn client, and if the Intranet NIC does not have a gateway, I can not access that server remotely.
What can I do to have Internet AND Intranet access to the mail ports and at the same time be able to access the server through vpn?