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XP Pro cannot access internet via NAT router

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  • XP Pro cannot access internet via NAT router

    I have three (virtual) machines :
    1) DEN-DC1 (2003 server) set up as DHCP server and NAT router
    2) DEN-SRV1 (2003 server)
    3) DEN-CL1 (XP Pro with SP2)

    DEN-SRV1 can connect to the internet via DEN-DC1 without issues.
    DEN-CL1 can logon to the domain but for some reason it cannot connect to the internet.

    I have turned off Windows Firewall. I have also compared all the settings on DEN-SRV1 with DEN-CL1 and cannot see any difference.

    Any ideas on how to troubleshoot this would be greatly appreciated.

  • #2
    Re: XP Pro cannot access internet via NAT router

    Originally posted by gsaint
    I have three (virtual) machines :
    1) DEN-DC1 (2003 server) set up as DHCP server and NAT router
    2) DEN-SRV1 (2003 server)
    3) DEN-CL1 (XP Pro with SP2)

    DEN-SRV1 can connect to the internet via DEN-DC1 without issues.
    DEN-CL1 can logon to the domain but for some reason it cannot connect to the internet.

    I have turned off Windows Firewall. I have also compared all the settings on DEN-SRV1 with DEN-CL1 and cannot see any difference.

    Any ideas on how to troubleshoot this would be greatly appreciated.
    Can CL1 ping DC1?
    Can CL1 resolve DNS names on the internet? ie. nslookup www.mm.com
    VCDX3 #34, VCDX4, VCDX5, VCAP4-DCA #14, VCAP4-DCD #35, VCAP5-DCD, VCPx4, vEXPERTx4, MCSEx3, MCSAx2, MCP, CCAx2, A+
    boche.net - VMware Virtualization Evangelist
    My advice has no warranties. Follow at your own risk.

    Comment


    • #3
      Re: XP Pro cannot access internet via NAT router

      Hi Jason,

      1) Yes, CL1 can ping DC1.

      2) nslookup on CL1 yields (10.10.0.100 is DC1) :

      Cant find server name for 10.10.0.100. Non existant domain.
      Server: UnKnown
      Address: 10.10.0.100

      Name: mist.mm.com
      Address: 204.73.34.22
      Aliases: www.mm.com

      Comment


      • #4
        Re: XP Pro cannot access internet via NAT router

        So the client can resolve DNS lookups?
        how var do you come with a traceroute?
        Marcel
        Technical Consultant
        Netherlands
        http://www.phetios.com
        http://blog.nessus.nl

        MCITP(EA, SA), MCSA/E 2003:Security, CCNA, SNAF, DCUCI, CCSA/E/E+ (R60), VCP4/5, NCDA, NCIE - SAN, NCIE - BR, EMCPE
        "No matter how secure, there is always the human factor."

        "Enjoy life today, tomorrow may never come."
        "If you're going through hell, keep going. ~Winston Churchill"

        Comment


        • #5
          Re: XP Pro cannot access internet via NAT router

          Hi Marcel,

          tracert shows the DNS resolution but everything else timed out. eg

          C:\Documents and Settings\gsaint.CONTOSO>tracert www.mist.com

          Tracing route to mist.com [66.225.239.128]
          over a maximum of 30 hops:

          1 * * * Request timed out.
          2 * * * Request timed out.
          3 * * * Request timed out.
          4 * * * Request timed out.
          5 * * * Request timed out.
          6 * * * Request timed out.

          etc etc

          Comment


          • #6
            Re: XP Pro cannot access internet via NAT router

            Found it! For some reason default gateway was set to 192.168.0.1 (the router) instead of 10.10.0.100 (the NAT server). Changed this and all was well.

            I assume DHCP was passing the router's IP address to the clients.

            Thanks to everyone for your help.

            Comment


            • #7
              Re: XP Pro cannot access internet via NAT router

              that's why i asked you the try a traceroute
              Marcel
              Technical Consultant
              Netherlands
              http://www.phetios.com
              http://blog.nessus.nl

              MCITP(EA, SA), MCSA/E 2003:Security, CCNA, SNAF, DCUCI, CCSA/E/E+ (R60), VCP4/5, NCDA, NCIE - SAN, NCIE - BR, EMCPE
              "No matter how secure, there is always the human factor."

              "Enjoy life today, tomorrow may never come."
              "If you're going through hell, keep going. ~Winston Churchill"

              Comment

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