C2500 DCE to DTE Back to back Cable

Unanswered Question

I trying to setup a test envirement using two 2514 routers with two switches. I am connecting the routers via Serial with a DCE to DTE back to back cable. The switches are connected via Ethernet. I cannot get the serial connections to come up. This is what I have for the serial setup.

Router 1

interface Serial0

ip address

Router 2

interface Serial0

ip address

I have this problem too.
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mohammedmahmoud Thu, 07/19/2007 - 21:50


Please add the clockrate command under the serial interface of the DCE side, you can keep the encapsulation as HDLC (default) or you can use PPP or FR according to your need:

HDLC Back-to-Back Connections


PPP Back-to-Back Connections


Back-to-Back Frame Relay



Mohammed Mahmoud.


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