CCNA 200-125: PPP PAP
R1 username bestpony password always ! interface Serial0/0/0 ip address 192.168.0.1 255.255.255.252 encapsulation ppp ppp authentication pap ppp pap sent-username derpy password secretmuffins R2 username derpy password secretmuffins ! interface Serial0/0/0 ip address 192.168.0.2 255.255.255.252 encapsulation ppp ppp authentication pap ppp pap sent-username bestpony password always Derpy: https://givralix.deviantart.com/art/Derpy-Hooves-429911899
R1 username bestpony password always ! interface Serial0/0/0 ip address 192.168.0.1 255.255.255.252 encapsulation ppp ppp authentication pap ppp pap sent-username derpy password secretmuffins R2 username derpy password secretmuffins ! interface Serial0/0/0 ip address 192.168.0.2 255.255.255.252 encapsulation ppp ppp authentication pap ppp pap sent-username bestpony password always Derpy: https://givralix.deviantart.com/art/Derpy-Hooves-429911899