Single source IP address for consistent source identification to AAA servers


If applicable to your installation, it is recommended that you perform the optional configuration mentioned in this section.

If your topology allows the AAA server to be reached through multiple paths, the server interprets the incoming packets to be from different switches even though they are all coming from the same switch. Having a switch associated with multiple IP addresses makes it more difficult to interpret system logs and accounting data.

To ensure that all traffic sent from the switch to the AAA server uses the same source IP address, use ip source-interface or ipv6 source-interface. These two commands plus the related commands show ip source-interface and show ipv6 source-interface are described under Layer 2/3 Interface commands in the CLI Reference Guide for your switch.