Configure Point to Point Protocols

Want to configure point to point protocols, and loop back interfaces should not be advertised in Routing protocols

Your Answer

Point-to-Point Protocol (PPP) is an open standard protocol that is mostly used to provide connections over point-to-point serial links. The main purpose of PPP is to transport Layer 3 packets over a Data Link layer point-to-point link. PPP can be configured on:
+ Asynchronous serial connection like Plain old telephone service (POTS) dial-up
+ Synchronous serial connection like Integrated Services for Digital Network (ISDN) or point-to-point leased lines.
PPP consists of two sub-protocols:
+ Link Control Protocol (LCP): set up and negotiate control options on the Data Link Layer (OSI Layer 2). After finishing setting up the link, it uses NCP.
+ Network control Protocol (NCP): negotiate optional configuration parameters and facilitate for the Network Layer (OSI Layer 3). In other words, it makes sure IP and other protocols can operate correctly on PPP link

client#int s0/0/0
client#ip add 192.168.0.1 255.255.255.0
client#encapsulation ppp
client#ppp pap sent-username server password pass tut2
client#username client password tut1
server#username server password tut2
server#int s0/0/1
server#ip add 192.168.0.2 255.255.255.0
server#encapsulation ppp
server#ppp pap sent-username client password pass tut1

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