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3 dedicated nics on server 2k3

By curtuhl ·
I've setup a domain as the company is making use of the service of 2 ISP they wanted to keep there VPN and NAT separated from each other.

So I've configured a 2k3 RAS member server with 3 nics.
1 nic for the VPN connection
1 nic for NAT
1 nic for LAN

The problem that occured is that the VPN connection is working but, the moment I put the NAT connection the VPN drops.

The VPN connection is running directly on a public IP address and the NAT is running trough DSL (private IP address).

The Domain has it DC, DNS.

Is there any suggestion?

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Windows 2003 is not a good router

by robo_dev In reply to 3 dedicated nics on serve ...

My advice is to get a dual-wan router; configuring Windows 2003 as a multi-homed router is very tricky.

At a high level, your issue is most likely that you need a static route to make sure that the outbound VPN traffic does not go through the wrong interface.

http://support.microsoft.com/kb/816514

Windows RRAS cannot do load-sharing or failover between WAN connections, which even a $150 Netgear Dual-Wan router can do.

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