837 Vlan suppport

Unanswered Question
Jan 16th, 2009

Hi experts,

Scenario is that we have 837 router and Cisco 2960 switches in branch office. What I am trying is to divide lan network in two vlans. But 837 doesn't support vlans and 2960 doesn't do inter vlan routing. So is there a way I could setup this and still able to separate lan into two segments. It is not necessary that they should be on different subnets. I want to block communication between these two segments.


I have this problem too.
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Giuseppe Larosa Fri, 01/16/2009 - 06:27

Hello Muhammad,

you can use the old secondary address option

add to router lan interface

ip address x.x.x.x y.y.y.y secondary

So you can have hosts in two ip subnets in a single subnet domain.

Hope to help


hasnain321 Fri, 01/16/2009 - 22:56

Thanks for your reply.

If I give a secondary ip will I be able to block traffic between these two segments by ACL or any other method.


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