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IOS_COMMANDS - Initiate PRIVILEGED mode Return to USER...

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Page 1 of 35 MODE NAVIGATION: Initiate PRIVILEGED mode Router# Return to USER mode (from PRIVILEGED) Router# Router# Initiate SETUP mode (automatic setup) This can also be accomplished by erasing the current config file and rebooting ROM MONITOR mode Console into router, power up, and press CTRL+BREAK within 60 seconds of power-up GLOBAL configuration Router(config)# INTERFACE configuration ROUTER configuration LINE configuration CURSOR MOVEMENT: move to the beginning of a line press CTRL+A move to the end of a line press CTRL+E move back one word press ESC+B move forward one word press ESC+F move back one character press CTRL+B move forward one character press CTRL+F delete one character (left of cursor) BACKSPACE delete one character (cursor) press CTRL+D redisplays a line press CTRL+R erases a line (up to cursor location) press CTRL+U erases a word press CTRL+W exits configuration mode press CTRL+Z completes partially entered command TAB show previous command UP-ARROW; or, press CTRL+P show next command DOWN-ARROW; or, press CTRL+N break press SHIFT+CTRL+6 INITIAL CONFIGURATION: display IOS version display FLASH information initial mode is USER MODE Router> goto PRIVILEGED MODE Router# goto GLOBAL CONFIGURATION Router(config)# exit GLOBAL CONFIGURATION Router# change router name newroutername(config)# Router(config)# enable Router(config)# disable Leave current IOS level; move to previous level Router(config)# exit Router# setup Router# configure terminal Router(config)# interface < serial|ethernet|fastetherent|loopback > <NUMBER> Router(config)# router Router(config)# line < con|vty|aux > <NUMBER> Router> show version Router> show flash Router> enable Router# configure terminal Router(config)# exit OR… Router(config)# ^z Router(config)# hostname <NAME>
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Page 2 of 35 set ENABLE password set SECRET password set CONSOLE password set TELNET password There are 5 telnet passwords. Using "0 4" sets all of the to the same password. You can configure each telne session with individual passwords. set AUXILIARY (modem) password config line to prevent timeout/logout If <sec> = 0 and <min> = 0 then a timed logout will never occur for that access line encrypt passwords review changes save changes in flash copy run start & "wr" can be substituted for above commands. The perform the same action reload IOS from flash Configure clock PASSWORD RECOVERY (while preserving router configuration): verify starting configuration register ... Configuration register is 0x2102 enter into ROMMON MODE (Console into router and send a <break> key within 60 seconds of bootup) rommon x > DO NOT enter system config dialog goto PRIVLIGED MODE Router# copy startup configuration change passwords see notes under initial configuration config "NO SHUT" for active interfaces clear route tables config starting config register save configuration reload router BACKUP IOS TO TFTP SERVER: Router(config)# enable <PASSWORD> Router(config)# enable secret <PASSWORD> Router(config)# line console 0 Router(config-line)# login Router(config-line)# password <PASSWORD> Router(config-line)# exit Router(config)#
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