Category: Cisco

Serial interfaces are used to communicate with other local Cisco Routers or to establish a connection to the WAN through a CSU/DSU device. The required steps are almost identical to the configuration of any other interface’s with a few exceptions. When connecting two Cisco routers directly with a DCE/DTE cable, the router which has the DCE end of the cable connected to it has to be configured to dictate the clock rate. It is essential for proper communication.

After you have played a little with some basic commands on your Cisco router you probably want to take it to the next level and connect it to a network so the real fun can begin! Now to be able to TELENT into the router or even just PING it you have to configure at least one of the interfaces with an IP address. Preferably the one you want to plug the cable into…

One of the first things you want to configure on a router or a switch is the hostname. Although it is mainly important to us administrators -so we can identify our devices easier-, the hostname can be used to authenticate one router to another as well, but I’ll talk about that in another tutorial.