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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 ························································································································································· 3

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

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

Abbreviating commands·········································································································································· 4

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

Configuring and using command hotkeys ············································································································· 5

Enabling redisplaying entered-but-not-submitted commands ··············································································· 6

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

Using the command history function ······························································································································· 7

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

Pausing between screens of output ························································································································ 8

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 ························································ 13

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

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

Logging in through the console port for the first device access ·············································································· 16

Logging in to the CLI ·················································································································································· 18

CLI overview ··································································································································································· 18

User lines ································································································································································ 18

Login authentication modes ·································································································································· 19

User roles ······························································································································································· 19

FIPS compliance ····························································································································································· 19

Logging in through the console port locally ················································································································ 20

Disabling authentication for console login ········································································································· 20

Configuring password authentication for console login ··················································································· 21

Configuring scheme authentication for console login ······················································································· 21

Configuring common AUX line settings ·············································································································· 22

Logging in through Telnet ·············································································································································· 24

Configuring Telnet login on the device ··············································································································· 24

Using the device to log in to a Telnet server ······································································································ 30

Logging in through SSH ················································································································································ 31

Configuring SSH login on the device ·················································································································· 31

Using the device to log in to an SSH server ······································································································· 33

Logging in through a pair of modems ························································································································· 34

Displaying and maintaining CLI login ························································································································· 37

Accessing the device through SNMP ······················································································································· 38

Configuring SNMPv3 access ········································································································································ 38

Configuring SNMPv1 or SNMPv2c access ················································································································· 39