Command
Encapsulation PPP
Use
This command enables PPP encapsulation and functionality on a serial interface.
Syntax
Router(config-if)#encapsulation ppp
Example
In this example, we will configure R1 and R3’s S1/1 interface as per the diagram using PPP.
R1(config-if)#int s1/1 R1(config-if)#encapsulation ppp R1(config-if)#clock rate 64000 R1(config-if)#ip add 192.168.13.1 255.255.255.252 R1(config-if)#no shut R1(config-if)# *Mar 2 01:31:12.357: %LINK-3-UPDOWN: Interface Serial1/1, changed state to up
R3(config)#int s1/1 R3(config-if)#ip add 192.168.13.2 255.255.255.252 R3(config-if)#encapsulation ppp R3(config-if)#no shut R3(config-if)# *Mar 2 01:32:34.621: %LINK-3-UPDOWN: Interface Serial1/1, changed state to up R3(config-if)# *Mar 2 01:32:35.733: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/1, changed state to up