Syslog Configuration with IPv6 Address

Logging is performed with IPv6 IP and verified by logs on remote PC (Logging server).

Topology

Figure 51 shows the sample configuration of Syslog.

Figure 51. Syslog Configuration topology

Enabling rsyslog

#configure terminal	Enter configure mode
(config)#feature rsyslog [vrf management]	Enable feature on default or management VRF. By default this feature runs on the management VRF.
(config)#commit	Commit the candidate configuration to the running configuration
(config)#exit	Exit configure mode

Logging to a File

The below configurations shows how to enable debug logs for a particular protocol. In this case, OSPF is shown.

#debug ospf all	This enables the debugging on OSPF
#configure terminal	Enter configure mode
(config)#router ospf 1	Enable OSPF process 1
(config-router)#exit	Exit router mode
(config)#feature rsyslog	Enable feature on default or management VRF. By default this feature runs on the management VRF.
(config)#logging level ospf 7	This enable debug messages for OSPF module. This is configurable either if de-fault of management VRF.
(config)#logging logfile ospf1 7	This creates the log file where the logs will be saved. The path of the file will be in the directory /log/ospf1. Log File size 4096- 4194304 bytes
(config)#commit	Commit the candidate configuration to the running configuration
(config)#exit	Exit configure mode

Logging to Remote Server

#configure terminal	Enter configure mode.
(config)#logging level bgp 7	This enable debug messages for BGP module
(config)#logging remote server 10.16.2.1 vrf management	Redirects the log messages to the server configured.
(config)#debug bgp all	This enables the debugging on BGP con-figurations.
(config)#router bgp 1	Enabling BGP process 1.
(config-router)#exit	Exit router mode.
(config)#commit	Commit the candidate configuration to the running configuration
(config)#exit	Exit configure mode.

Validation