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New Member

3750 switch & routing

Hello. Here is the background:

We have a 3750 switch with multiple point-to-point connections to cisco routers. The switch is on one end of our backbone. Next to the switch is a firewall, and outside the firewall is our external router (a 7206). The 7206 has a connection to a server in our DMZ on a network.

From our 3750 switch we can ping the DMZ server interface on the network. From any router (other than the 7206) we cannot ping that same interface. However, from a computer on a network directly connected to the 3750 we can ping this same interface.

Our issue is that some computers connected to the networks on the remote routers can connect to the DMZ server at the interface, some cannot. All routers have a default route to the 3750, and the 3750 has a static route to the firewall for the interface on the network.

Any help would be greatly appreciated. Patrick

New Member

Re: 3750 switch & routing

If I understand your layout correctly, it seems like you fire wall might not have a route back to you other inside networks or that you have a rule problem in the firewall to the DMZ.

If this is not the case, please provide a drawing and config of 3750 and one router effecetd.