Logging all changes made to a router

August 16, 2008 at 3:54 pm | Posted in Blogroll, IOS services | Leave a comment

The task is to configure the router to log all changes made to the running configuration, and to send the logs to a syslog server. If the syslog server is not availble, log the change locally for a max of 500 entries.

RSRack1R6#
archive
log config
logging enable
logging size 500
notify syslog
logging 187.1.5.155

! Testing, enter a command, then remove it after ward
ip dhcp excluded-address 1.1.1.1 1.1.1.100
no ip dhcp excluded-address 1.1.1.1 1.1.1.100

RSRack1R6#sh archive log config all
idx   sess           user@line      Logged command
1     1        console@console  |  logging enable
2     1        console@console  |  logging size 500
3     1        console@console  |  notify syslog
4     1        console@console  |  exit
5     1        console@console  |   exit
6     1        console@console  |logging 187.1.5.155
7     2        console@console  |ip dhcp excluded-address 1.1.1.1 1.1.1.100
8     3        console@console  |no ip dhcp excluded-address 1.1.1.1 1.1.1.100
Doc CD Navigation

  • Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.4
  • Part 8: Managing Configuration Files
  • Configuration Change Notification and Logging
  • Configuration Examples for the Configuration Change Notification and Logging Feature
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