troubleshooting Question

Internal lan clients cannot access internet after changing gateway to att router

Avatar of manch03
manch03 asked on
RoutersWindows Server 2003Network Analysis
14 Comments1 Solution608 ViewsLast Modified:
I have a windows 2003 R2 server and is my domain controller running dns, dhcp, around 20 clients running windows 7 professional, another windows 2003 R2 server running apps and a netopia 3347 router.  I have been having issues and I believe I have finally got the router set up as my gateway out to the internet.  My domain controller has two nic cards, one nic conected directly to the router, the other nic to the switch connected to the internal network.  My gateway should be 10.0.0.254 which is the LAN address on the netopia router.  

The domain controller connects to the internet with no issues.  I cannot log into the network on the workstations.  I logged in locally to get the ipconfig.  I am getting a 10.0... ip address on the workstation, the correct dns server, but the wrong gateway.  I had the gateway as my domain controller and that ip address is still showing up on my workstations.  I tried to manually configure a workstation with the correct gateway but that did not work.

So, do I need to do something else now that I changed the gateway on the network?  To the router?  To the server?  I have the server nic gateway pointing to the netopia router.  It seems that the internal clients cannot access the new gateway.

ip address of both nics:

public nic

10.0.0.216  ip address
255.255.255.0 subnet mask
20.0.0.254   gateway

dns - att dns server

private nic

10.0.0.10
255.255.255.0
20.0.0.254

dns - 10.0.0.216

other workstations ip

10.0.0.33
255.255.255.0
20.0.0.216  - pointing to the dns,dhcp server

Do I need to configure something else on my domain controller?  I do have routing and remove access set up - does this need to be changed because the gateway changed?  Do I need anything else on the netopia router?
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