Dual NIC question....

[jaredbraddock]

Got an email on this from a friend, any thoughts?

Hi

What I am trying to do is have 2 NIC's in my W2000 server, one at
192.168.0.1, the other at say 192.168.10.1 to separate the LAN from the
VPN connection.

I have software on the LAN that has to connect to the first card at
192.168.0.1 for telnet sessions to a database program. If I run the
second NIC on th same subnet, the database program won't start once the
VPN is running. The two cards can be enabled, but once RAS starts the
VPN listening, the database program can't connect.

I can successfully use VPN on either card, when they are on the same
subnet, ( I change the forwarding in the router to point to the
appropriate card ), but the router can't forward VPN to the second card
when it is on a different subnet.

I have promoted the first NIC to the top of the list so the LAN sees
it, removed the gateway settings, and still no dice.

How can I get the 2 cards to work together? Do I need an additional
router to separtate the second NIC and only forward VPN to it?

 

[Robert L [MS-MVP]]

quoted from http://www.ChicagoTech.net
Connectivity issue after enabling VPN in multihomed server
Symptoms: after you enable VPN on a server as a router or with two or more NICs, you may experience some issues. 1) the internal computers can't access the Internet; 2) outside VPN clients can't access the VPN server; 3) can't access the server using TS and VNC form the internal or outside.

Causes: for the security reason, the RRAS modify the routing table and enable incoming VPN connections only so that no other forward packets over the interface except PPTP or L2TP traffic.

Don't send e-mail or reply to me except you need consulting services. Posting on MS newsgroup will benefit all readers and you may get more help.

Bob Lin, MS-MVP, MCSE & CNE
How to Setup Windows, Network, Remote Access on http://www.HowToNetworking.com
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
This posting is provided "AS IS" with no warranties.

I recommend Brinkster for web hosting!

Got an email on this from a friend, any thoughts?

Hi

What I am trying to do is have 2 NIC's in my W2000 server, one at
192.168.0.1, the other at say 192.168.10.1 to separate the LAN from the
VPN connection.

I have software on the LAN that has to connect to the first card at
192.168.0.1 for telnet sessions to a database program. If I run the
second NIC on th same subnet, the database program won't start once the
VPN is running. The two cards can be enabled, but once RAS starts the
VPN listening, the database program can't connect.

I can successfully use VPN on either card, when they are on the same
subnet, ( I change the forwarding in the router to point to the
appropriate card ), but the router can't forward VPN to the second card
when it is on a different subnet.

I have promoted the first NIC to the top of the list so the LAN sees
it, removed the gateway settings, and still no dice.

How can I get the 2 cards to work together? Do I need an additional
router to separtate the second NIC and only forward VPN to it?