Point to Point T1 looping
Posted on 2003-10-21
Hello. I am trying to set up a Verizon point to point T1 between two of our buildings. We currently have a Frame-relay connection that we installed due to the fact that we were planning to connect three buildings together. We have consolidated our staff into two buildings so we decided that a Point to point T1 is the more cost effective way to connect.
The issue that I have is that whenever I connect the new circuit to our Cisco routers, the routers say that the circuit is looping. This should be a very simple process as I am using the same equipment that to working fine with the Frame-relay. I remove the Frame-relay encapsulation from each end and the routers default the HDLC encapsulation. The circuit then starts looping (all packets that go out come right back). Verizon can find nothing in their configuration of the line that would be causing this problem.
Do you have a suggestions as to where I might be going wrong with the router config? I am just removing the frame-relay encapsulation and setting the IP address of the interface on each end.
Thanks for any help that you can provide.
Charles E. Moncrief
CEM Computer Service