Topology diagram
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RT1 Configuration
<rt1>sys
System View:return to User View with Ctrl + Z.
[Rt1]int g0/0/0
[Rt1-gigabitethernet0/0/0]ip Add 1.1.1.1 24
[rt1-gigabitethernet0/0/0]
RT2 Configuration
<rt2>sys
System View:return to User View with Ctrl + Z.
[Rt2]int g0/0/0
[Rt2-gigabitethernet0/0/0]ip Add 1.1.1.2 24
[rt2-gigabitethernet0/0/0]
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RT1 Configuration
[rt1-gigabitethernet0/0/0]
[Rt1-gigabitethernet0/0/0]quit
[rt1]telnet Server Enable turn on telnet
% Start Telnet Server
[Rt1]local-user Wangdandan User name
New local user added.
[Rt1-luser-wangdandan]password simple Wangdandan Password
[Rt1-luser-wangdandan]service-type telnet
[Rt1-luser-wangdandan]quit
[rt1]user-interface vty 0 4 ( 5 users can log in )
[Rt1-ui-vty0-4]authentication-mode Scheme
[Rt1-ui-vty0-4]
[Rt1-ui-vty0-4]quit
[RT1] Super Password Level 3 simple 222222 switch mode to 3 and set the password
[RT1]
Results
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Conclusion
① familiar with telnet command
switching modes with supper
Telnet and switch to level 3