Monday, 27 July 2015

Enable Layer3 on a Cisco Switch

This is what worked for me on a Cisco WS-C2960-24PS-L switch:

First you need to change the sdm prefer from dafult to lanbase-routing.
The lanbase-routing template supports IPv4 unicast routes for configuring static routing SVIs.
Static routing is supported only on switched virtual interfaces (SVIs) and not on physical interfaces. The switch does not support routing protocols.
conf t
sdm prefer lanbase-routing

Then you have to enable ip routing:
conf t
ip routing
Then you can add the static routes you like.

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