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  1. #1
    Join Date
    May 2002
    Location
    Florida Panhandle
    Posts
    1,975

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

    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?
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  2. #2
    Join Date
    Nov 2005
    Posts
    352
    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.

  3. #3
    Join Date
    Jan 2004
    Location
    North Yorkshire, UK
    Posts
    4,163
    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

  4. #4
    Join Date
    Feb 2003
    Location
    Seattle, WA
    Posts
    541
    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 .

  5. #5

    Need help in configuring 2 LAN cards on SBS

    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]
    Quote Originally Posted by dexxtreme View Post
    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.

  6. #6
    Join Date
    Feb 2003
    Location
    Seattle, WA
    Posts
    541
    Quote Originally Posted by sugandha View Post
    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]

    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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