Svr 2k3 - Default Gateway changes on reboot

I have a client that purchased a new server with Server 2k3. They have
an existing SBS 2003 server on the Network. I dropped the new server
into the network, and was unable to get to it. I went back to their
office, and found that the default gateway changed to what looks like an
old gateway.

I checked the SBS server and it seems that they have changed IP schemes
at some point, because there are DNS entries for a 192.168.x.x scheme,
and they are currently on 10.0.1.x scheme.

There are no startup scripts or anything, is there some other reason
that on reboot, the new server would have a different gateway??

Thanks!

If it is server, I would use static IP. I have seen many cases like this. Make sure they don't have another router in the LAN.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"Chris" <(E-Mail Removed)> wrote in message news:%23$(E-Mail Removed)...
I have a client that purchased a new server with Server 2k3. They have
an existing SBS 2003 server on the Network. I dropped the new server
into the network, and was unable to get to it. I went back to their
office, and found that the default gateway changed to what looks like an
old gateway.

I checked the SBS server and it seems that they have changed IP schemes
at some point, because there are DNS entries for a 192.168.x.x scheme,
and they are currently on 10.0.1.x scheme.

There are no startup scripts or anything, is there some other reason
that on reboot, the new server would have a different gateway??

Thanks!

I'm using a static IP. I have the IP set to 10.0.1.15, and the gateway
is set to 10.0.1.2 (the Firewall IP address).

Everytime I reboot the server, the IP stays the same, but the gateway
changes to 192.168.1.1.

I'll check for another router but I don't believe there is one.

Robert L [MS-MVP] wrote:
> If it is server, I would use static IP. I have seen many cases like
> this. Make sure they don't have another router in the LAN.
>
> Bob Lin, MS-MVP, MCSE & CNE
> Networking, Internet, Routing, VPN Troubleshooting on
> http://www.ChicagoTech.net
> How to Setup Windows, Network, VPN & Remote Access on
> http://www.HowToNetworking.com
>
> "Chris" <(E-Mail Removed)
> <private.php?do=newpm&u=>> wrote in message
> news:%23$(E-Mail Removed)...
> I have a client that purchased a new server with Server 2k3. They have
> an existing SBS 2003 server on the Network. I dropped the new server
> into the network, and was unable to get to it. I went back to their
> office, and found that the default gateway changed to what looks
> like an
> old gateway.
>
> I checked the SBS server and it seems that they have changed IP schemes
> at some point, because there are DNS entries for a 192.168.x.x scheme,
> and they are currently on 10.0.1.x scheme.
>
> There are no startup scripts or anything, is there some other reason
> that on reboot, the new server would have a different gateway??
>
> Thanks!

There is no other router on the network... The SBS machine is
multi-homed... could that do it??

Thanks
Chris

Robert L [MS-MVP] wrote:
> If it is server, I would use static IP. I have seen many cases like
> this. Make sure they don't have another router in the LAN.
>
> Bob Lin, MS-MVP, MCSE & CNE
> Networking, Internet, Routing, VPN Troubleshooting on
> http://www.ChicagoTech.net
> How to Setup Windows, Network, VPN & Remote Access on
> http://www.HowToNetworking.com
>
> "Chris" <(E-Mail Removed)
> <private.php?do=newpm&u=>> wrote in message
> news:%23$(E-Mail Removed)...
> I have a client that purchased a new server with Server 2k3. They have
> an existing SBS 2003 server on the Network. I dropped the new server
> into the network, and was unable to get to it. I went back to their
> office, and found that the default gateway changed to what looks
> like an
> old gateway.
>
> I checked the SBS server and it seems that they have changed IP schemes
> at some point, because there are DNS entries for a 192.168.x.x scheme,
> and they are currently on 10.0.1.x scheme.
>
> There are no startup scripts or anything, is there some other reason
> that on reboot, the new server would have a different gateway??
>
> Thanks!