HDLC Configuration on Cisco

In this lesson, we will talk about HDLC configuration on Cisco Routers. Cisco HDLC has a different proprietary field in the data field of the protocol.

For our Cisco HDLC Configuration example, we will use the below basic topology:

Let’s start to configure Cisco HDLC for this topology.

Enabling Cisco HDLC

To configure Cisco HDLC, firstly we will enable HDLC and after that, we will configure interface ip addresses.

Router1>enable
Router1# configure terminal
Router1(config) # interface Serial 0/0/0
Router1(config-if) # encapsulation hdlc
Router1(config-if) # ip address 10.10.10.1 255.255.255.252
Router1(config-if) # exit

Now, let’s configure Router 2 for HDLC like above.