Cisco Cheatsheet

Table of Contents

Reseting passwords/configs

Taken from
  1. Attach a terminal or PC with terminal emulation (such as hyperterminal) to the console port of the router. 9600-8N1
  2. Power-cycle. Hit break (e.g. Ctrl-Break or Ctrl-F6, Break) in first 60 seconds
  3. Type confreg 0x2142 at the rommon 1> prompt.
  4. rommon 1 > confreg 0x2142
  5. Type no after each setup question or press Ctrl-C to skip the initial setup procedure.
  6. Router>enable
  7. copy startup-config running-config (optional)
  8. conf t
  9. enable secret <pw>
  10. config-register 0x02102
  11. Ctrl-Z
  12. copy running-config startup-config
  13. Restart/Power-cycle

Debugging T1 PRI

show isdn stat
show controllers t1 x
debug isdn q921
show interface serial x:23

show voice port summary
show dial-peer voice
show cdapi
show call history voice record
show rawmsg
debug isdn event
debug tsp
debug cdapi {events | detail}

Checking HW

show inventory
show ver
show hardware
show controllers <type> <controller #>