HDLC to PPP
show int s2/0
Encap HDLC
config t
int s2/0
encap ppp
ping 10.1.2.2
reply
encap ppp
ppp pap sent-username R1 password Cisco
Username R2 password Cisco
r1 username R2 password Cisco
interface s2/0
ppp authentication pap
ppp pap sent-username R1 password Cisco
shut
no shut
se2/0 is up
debug ppp negotiation
debut ppp negotation
shut
no shut
see negotation ppp after that
