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Using 2 nics on server or not?

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  • Using 2 nics on server or not?

    So i know a few things abut server setups but not that much.

    Talking about server 2003.

    Before i assumed that you would connect the router and server and clients to direct to the switch. And as for dhcp in this setup i think i assumed that you would set the server to supply all dhcp to the clients, would that mean that you would disable dhcp on the router?

    But i came across a server setup that used 2 nics on the server, one nic connected to the router and the other to the switch, so hence everthing ran through that server.

    So how would this 2 nic server most likley be setup, would the dhcp be running on the router to supply the "wan nic" and ip and also dhcp running on the server to supply the clients ips. Note that the nics were on different subnets.

    So they had

    router(>wan nic server(192,168.1.2)-->server-->lan nic(>client pcs(192.168.16.x)

    to do this would you need to setup "routing an remote access" on the server?

    I also noticed that the lan nic was set an ip of so as to be a default gateway for the 192.168.16 subnet i think and it was also set a DG of and a dns of

    I am confused as to why the dns for the lan nic is the routers address, why send dns to the router, if you send dns requests to the router how do the lan clients resolve dns internally?

    So basically are these the only two ways to setup a one server network, i.e either have two nics or one nic, or are there other ways?


  • #2
    Re: Using 2 nics on server or not?

    Was this an SBS 2003 Server running ISA 2004 as the firewall?
    Joined: 23rd December 2003
    Departed: 23rd December 2015


    • #3
      Re: Using 2 nics on server or not?

      Correct on both.