LAN to WAN routing using Server 2003 - LAN clients unable to resolve names

Hi All

Thanks in advance for taking time to read

I have just configured a Windows Server 2003 R2 machine with 2 NICs to provide Internet access to my AD Domain users using RRAS.

AD Users can ping using internet IP addresses but not friendly urls. Can anyone help me solve this problem.

I have a dns Server in My AD which is 10.0.0.248 

following is the ip config of the Server 2003 Router I have just configured

Windows IP Configuration

   Host Name . . . . . . . . . . . . : router
   Primary Dns Suffix  . . . . . . . : corp.mycorp.net
   Node Type . . . . . . . . . . . . : Broadcast
   IP Routing Enabled. . . . . . . . : Yes
   WINS Proxy Enabled. . . . . . . . : Yes
   DNS Suffix Search List. . . . . . : corp.mycorp.net
                                       corp.mycorp.net

Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
   Physical Address. . . . . . . . . : 00-90-0B-26-AA-0D
   DHCP Enabled. . . . . . . . . . . : No
   IP Address. . . . . . . . . . . . : 10.0.0.1
   Subnet Mask . . . . . . . . . . . : 255.0.0.0
   Default Gateway . . . . . . . . . :
   DNS Servers . . . . . . . . . . . : 27.114.140.40

Ethernet adapter Local Area Connection 2:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller #2
   Physical Address. . . . . . . . . : 00-90-0B-26-AA-0C
   DHCP Enabled. . . . . . . . . . . : No
   IP Address. . . . . . . . . . . . : 203.104.25.102
   Subnet Mask . . . . . . . . . . . : 255.255.255.252
   Default Gateway . . . . . . . . . : 203.104.25.101
   DNS Servers . . . . . . . . . . . : 27.114.138.4
                                       27.114.140.40

Following is the routing table of the Server 2003 router

IPv4 Route Table
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x10003 ...00 90 0b 26 aa 0d ...... Realtek PCIe GBE Family Controller
0x10004 ...00 90 0b 26 aa 0c ...... Realtek PCIe GBE Family Controller #2
===========================================================================
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
          0.0.0.0          0.0.0.0   203.104.25.101   203.104.25.102     20
         10.0.0.0        255.0.0.0         10.0.0.1         10.0.0.1     20
         10.0.0.1  255.255.255.255        127.0.0.1        127.0.0.1     20
   10.255.255.255  255.255.255.255         10.0.0.1         10.0.0.1     20
        127.0.0.0        255.0.0.0        127.0.0.1        127.0.0.1      1
   203.104.25.100  255.255.255.252   203.104.25.102   203.104.25.102     20
   203.104.25.102  255.255.255.255        127.0.0.1        127.0.0.1     20
   203.104.25.255  255.255.255.255   203.104.25.102   203.104.25.102     20
        224.0.0.0        240.0.0.0         10.0.0.1         10.0.0.1     20
        224.0.0.0        240.0.0.0   203.104.25.102   203.104.25.102     20
  255.255.255.255  255.255.255.255         10.0.0.1         10.0.0.1      1
  255.255.255.255  255.255.255.255   203.104.25.102   203.104.25.102      1
Default Gateway:    203.104.25.101
===========================================================================
Persistent Routes:
  None

And here is the ipconfig of an AD client machine

C:\Users\Administrator>ipconfig

Windows IP Configuration


Wireless LAN adapter Wireless Network Connection:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . : Home

Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . : corp.mycorp.net
   Link-local IPv6 Address . . . . . : fe80::3456:2d54:abe2:c2fe%11
   IPv4 Address. . . . . . . . . . . : 10.0.0.4
   Subnet Mask . . . . . . . . . . . : 255.0.0.0
   Default Gateway . . . . . . . . . : 10.0.0.1

Tunnel adapter isatap.Home:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :

Tunnel adapter Local Area Connection* 12:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :

Tunnel adapter isatap.corp.mycorp.net:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . : corp.mycorp.net