notes: PPP Peer Address allocation

During IPCP negotiation, if the peer presents a peer IP address during IPCP address negotiation and the peer router has no address is assigned, the presented address is acknowledged and used in the current session.

CONFIG-SET: PPP IPCP address allocation

R5:

interface Serial0/2/0
ip address 192.168.205.5 255.255.255.0
encapsulation ppp
peer default ip address 192.168.205.2
ppp lcp predictive
ppp ipcp predictive

R2:

interface Serial0/1/0
ip address negotiated
encapsulation ppp
clock rate 2000000
ppp lcp predictive
ppp ipcp predictive


verification:

R2#sh ip int brief | i Serial0/2/0
Serial0/2/0 192.168.205.2 YES IPCP up up - Notice the method is IPCP (IP Control Protocol)