Adding existing Vlan to Cisco 6509

rrya871302
rrya871302 used Ask the Experts™
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I currently have several subnets connected via leased fiber back to a central facility.  Each subnet has its own vlan as does the central office.

I need to configure 1 port on the 6509 at the central office to be on the same vlan as one of the remote subnets.

When I create the vlan on the 6509 in the central office, I can no longer access any of the hosts in the existing vlan.

If I remove the newly added vlan in the 6509, I get connectivity back.  It has to be some kind of routing, but I can't figure it out.
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Commented:
Can you share the config on the 6509? Are you running CatOs or IOS on the supervisor? Do you have an MSFC?

Author

Commented:
I am running IOS 12.2(18) on the remote and 12.2(33) on the central office 6509.

What part of the config would be helpful?
Commented:
All of it would be helpful. If you have a lot of interfaces, you can just leave a few of them. Everything with the VLANs. Did you set your switch to transparent mode? It could be a VTP issue.

Author

Commented:
After digging around on Cisco's site I think I found why I can't do what I want to.  I am routing the traffice between the two locations and using EIGRP.  The interface on both ends are on the same network and any traffic traveling off the native vlan gets routed.

So, when I make a Vlan on my core router at the central location, it basically breaks the routing from the far site and routes between the vlan just created.  If I were bridging I would probably be able to do what I am trying and since I don't want to re-engineer my other subnets, I'm going to find another way to accomplish what I want to do.

Thanks clonga13 for your help.

Author

Commented:
I resolved the issue but the experts did provide some insite.

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