PPP over Frame Relay

PPP over Frame Relay (PPPoFR) could be used for :

- Need for authentication between routers
- Need for same IP on multiple DLCI and static mapping not permitted.

int s0/0
encap frame-relay
frame-relay interface-dlci XXX ppp virtual-template1
frame-relay interface-dlci YYY ppp virtual-template1

int virtual-template1
ip add 10.0.0.1 255.255.255.0
ppp authentication chap