Windows SBS2K3 (setting up more than 1 network card?)

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Posted by NationHosts, 03-07-2008, 10:54 AM
I am wondering how I can setup a SBS2K3 server to use 2 network cards? I would like this server to have one internal network IP address (192.168.***.***) for local access on the local network with Exchange, Quickbooks, and network access. On the second network card, I need a ISP assigned IP address (68.227.***.***). This would be for people outside of the office to access the server and connect to their computers remotely. I've set up the server like this and it will function ok sometimes for a few days and then the ISP assigned IP address will no longer work. I also get an error if I try to assign 2 IP addresses to two network cards. Warning - multiple default gateways are intended to provide redundancy to a single netowrk (such as an intranet or the internet). They will not function properly when the gateways are on two separate, disjoint networks. Not sure why SBS2K3 cannot use two network cards, i've done it before on a Linux machine as well as Windows XP without any redundancy issues in the past. Is there a work around to this?
Posted by dexxtreme, 03-08-2008, 05:21 AM
You should not set a default gateway on your internal (192.168.x.x) card. There should only be a default gateway (the one provided by your ISP) on your public (68.227.x.x) connection. Your server should serve as the default gateway for your other internal machines, and it should be configured to forward internal traffic to the default gateway configured on the public card. As long as you do not set a default gateway on both interfaces, you should be able to set the public IP on one card and the private IP on the other.
Posted by dkitchen, 03-08-2008, 05:18 PM
As has been said, ensure you remove the default gateway from the internal NIC, Windows has a tendancy to swap the gateways every few days when you have two with the same metric. This is also taking into account that your LAN is one subnet and does not contain any routers? Dan
Posted by FatalSw1tch, 03-21-2008, 01:05 AM
Install and correctly configure routing and remote access on your server. From there you can set static routes for your lan card. Make sure to try to be on site in case of network card lockup .
Posted by sugandha, 04-30-2008, 04:08 AM
Hello everyone I am new to this field. i just got the order to configure 2 LAN cards on SBS. can u please help me from basic that how to configure 2 LAN cards on SBS one with private ip and another with public ip. actually the issue is that i have to set up the vpn for the office but i have not idea how to configure public and private ip on different LAN cards at server. [/I]
Posted by FatalSw1tch, 10-08-2008, 02:22 PM
The number one thing to remember is do not put a default gateway on the secondary card. If this is your private network then fine it will be okay without one. Do you have any kind of layout for us to follow?

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