1800 router vlan configuration

Unanswered Question
Jun 15th, 2007

we have 3 vlans 1.1,1.2 and 1.6 we need a solution like vlan 6(1.6) has to access all the users who are in vlan 1(1.1) and vlan2(1.2) and have to block vlan 1 and 2 to access vlan6 we already applied the access list and this is not working i also attached the configuration file help me to solve this issue

thanks in advance

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r.repas Fri, 06/15/2007 - 08:59

If I understand correctly, you want:

o vlan 6 users to be able to access vlan 1 and vlan 2 users

o but vlan 1 and vlan 2 users can not access vlan 6 users

If the above is correct, you're not going to be able to achieve this with access lists. Think about the traffic path. It's a two-way street. For vlan 6 users to access vlan 1 and 2 users that implies that return traffic from vlan 1 and 2 users must be allowed to vlan 6.

Please let me know if I misunderstood your request!

Thanks, Robin.

a.cruea1980 Fri, 06/15/2007 - 12:56

Correct me if I'm wrong, but couldn't you control this with a reflexive list from VLAN 6 to VLAN 1 & 2? Something like, slap all traffic from VLAN 6 incoming into a list, then evaluate the reflexive list outgoing, deny everything else?

I have this setup for my 871 at home, works just fine to block traffic.

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