R1
[R1]int g0/0/0
[R1-GigabitEthernet0/0/0]ip ad 10.1.1.1 24
[R1-GigabitEthernet0/0/0]q
[R1]user-interface vty 0 4
[R1-ui-vty0-4]set authentication password simple 123
[R1-ui-vty0-4]user privilege level 3
R2
[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]ip ad 10.1.1.2 24
[R2-GigabitEthernet0/0/0]q
[R2]q
<R2>telnet 10.1.1.1