Optimizing Event Logging in Cisco Devices

To enable event logging, the following points should be considered:

• Setting the logging level for events.
• Security of transferring log files from the device to the server and secure storage of log files.
• Using NTP version 3 for time synchronization to accurately record event times.
• Ensuring sufficient space for storing and recording log files.

Cisco devices have the capability to send events to various sources:

• Sending events through the Console port to the terminal.
• Sending events through Line vty to services like Telnet.
• When configuring the SNMP Agent, the device can send events to the SNMP Server.
• Sending events to the Syslog Server.

Note: Syslog messages are sent in clear text to the Syslog server.

Configuring the Syslog service:

Router(config)#logging 192.168.1.1

In this example, the router sends logs to the server at 192.168.1.1.

Setting the Syslog Message Level:

Router(config)#logging trap warnings

In the above example, the Syslog messages level is set to level 4, including levels 0, 1, 2, 3, and 4.

Note: If the Syslog message level is not specified, level 6 is considered as the default.

Some examples of Windows-based software for collecting events include Tftpd32 and Kivi Syslog.