This task asks us to track configuration changes (as a simple alternative to AAA). This is a best example of a topic for which we need to consult our friend in the lab – the Doc CD. So let’s start with that.
Doc CD Navigation
- Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.4
- Part 8: Managing Configuration Files
- Configuration Change Notification and Logging
Configuration
Rack1R4#
archive
log config
logging enable
logging size 1000
hidekeys
notify syslog
Verification
Rack1R4#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Rack1R4(config)#int e0/0
Rack1R4(config-if)#shut
Rack1R4(config-if)#
%PARSER-5-CFGLOG_LOGGEDCMD: User:console logged command:interface Ethernet0/0
%PARSER-5-CFGLOG_LOGGEDCMD: User:console logged command:shutdown
Rack1R4(config-if)#no shut
Rack1R4(config-if)#
%LINK-5-CHANGED: Interface Ethernet0/0, changed state to administratively down
%PARSER-5-CFGLOG_LOGGEDCMD: User:console logged command:no shutdown
Rack1R4(config-if)#
Rack1R4#sh log
Syslog logging: enabled (11 messages dropped, 2 messages rate-limited,
0 flushes, 0 overruns, xml disabled, filtering disabled)
Console logging: level debugging, 144 messages logged, xml disabled,
filtering disabled
Monitor logging: level debugging, 0 messages logged, xml disabled,
filtering disabled
Buffer logging: level debugging, 62 messages logged, xml disabled,
filtering disabled
Logging Exception size (4096 bytes)
Count and timestamp logging messages: enabled
No active filter modules.
Trap logging: level informational, 58 message lines logged
Log Buffer (4096 bytes):
%SYS-5-CONFIG_I: Configured from console by console
%PARSER-5-CFGLOG_LOGGEDCMD: User:console logged command:interface Ethernet0/0
%PARSER-5-CFGLOG_LOGGEDCMD: User:console logged command:shutdown
%LINK-5-CHANGED: Interface Ethernet0/0, changed state to administratively down
%PARSER-5-CFGLOG_LOGGEDCMD: User:console logged command:no shutdown
%SYS-5-CONFIG_I: Configured from console by console
%LINK-3-UPDOWN: Interface Ethernet0/0, changed state to up
Rack1R4#sh archive log config all
idx sess user@line Logged command
1 1 console@console | logging enable
2 1 console@console | logging size 1000
3 1 console@console | hidekeys
4 1 console@console | notify syslog
5 2 console@console |archive
6 2 console@console | log config
7 2 console@console | logging enable
8 2 console@console | exit
9 2 console@console | exit
10 4 console@console |interface lo111
11 4 console@console | exit
12 4 console@console |no interface Loopback111
13 6 console@console |interface Ethernet0/0
14 6 console@console | shutdown
15 6 console@console | no shutdown
Rack1R4#sh archive log config statistics
Config Log Session Info:
Number of sessions being tracked: 1
Memory being held: 3910 bytes
Total memory allocated for session tracking: 3910 bytes
Total memory freed from session tracking: 0 bytes
Config Log log-queue Info:
Number of entries in the log-queue: 15
Memory being held by the log-queue: 3199 bytes
Total memory allocated for log entries: 3199 bytes
Total memory freed from log entries: 0 bytes
Rack1R4#sh archive log config all ?
provisioning Display logged commands as a configlet suitable for
provisioning
| Output modifiers
Rack1R4#sh archive log config all provisioning
archive
log config
logging enable
logging size 1000
hidekeys
notify syslog
archive
log config
logging enable
exit
exit
interface lo111
exit
no interface Loopback111
interface Ethernet0/0
shutdown
no shutdown
