Using the CLI ································································································································································ 1

CLI views ············································································································································································ 1

Entering system view from user view ······················································································································ 2

Returning to the upper-level view from any view ·································································································· 2

Returning to user view ·············································································································································· 2

Accessing the CLI online help ·········································································································································· 2

Using the undo form of a command ······························································································································· 3

Entering a command ························································································································································· 4

Editing a command line ··········································································································································· 4

Entering a text or string type value for an argument ···························································································· 4

Abbreviating commands·········································································································································· 5

Configuring and using command keyword aliases ······························································································ 5

Configuring and using command hotkeys ············································································································· 6

Enabling redisplaying entered-but-not-submitted commands ··············································································· 7

Understanding command-line error messages ··············································································································· 7

Using the command history function ······························································································································· 8

Controlling the CLI output ················································································································································· 8

Pausing between screens of output ························································································································ 9

Numbering each output line from a display command ······················································································· 9

Filtering the output from a display command ····································································································· 10

Saving the output from a display command to a file ························································································ 12

Viewing and managing the output from a display command effectively ························································ 14

Saving the running configuration ································································································································· 14

Login overview ··························································································································································· 15

Logging in through the console port for the first device access ·············································································· 17

Logging in to the CLI ·················································································································································· 20

CLI overview ··································································································································································· 20

User lines ································································································································································ 20

Login authentication modes ·································································································································· 21

User roles ······························································································································································· 21

FIPS compliance ····························································································································································· 21

Logging in through the console port locally ················································································································ 22

Disabling authentication for console login ········································································································· 22

Configuring password authentication for console login ··················································································· 23

Configuring scheme authentication for console login ······················································································· 24

Configuring common AUX line settings ·············································································································· 24

Logging in through Telnet ·············································································································································· 26

Configuring Telnet login on the device ··············································································································· 26

Using the device to log in to a Telnet server ······································································································ 33

Logging in through SSH ················································································································································ 34

Configuring SSH login on the device ·················································································································· 34

Using the device to log in to an SSH server ······································································································· 36

Logging in through a pair of modems ························································································································· 36

Displaying and maintaining CLI login ························································································································· 40

Accessing the device through SNMP ······················································································································· 41

Configuring SNMPv3 access ········································································································································ 41

Configuring SNMPv1 or SNMPv2c access ················································································································· 42