VMPS (Dynamic VLAN Membership)

Answered Question
Mar 31st, 2010

Dear All,

I have 3750 switches as core switches and 2960 switches in my network.

Now I need to configure my network for Dynamic VLAN .

I have checked the 3750 configuration guide and as per the document I found that, we cannot configure 3750 and 2960 switches as VMPS server. We can just make these switches as VMPS client.

I also found that Cisco IOS doesn't support VMPS server. only Cat OS supports VMPS server in 5000 and 6000 series chassis.

I not getting about VMPS Server. which device can act as VMPS server.

Please suggest....  with the VMPS configuration example.

VMPS client end configuration I have got from the configuration guide.

Thanks,

Nitin

I have this problem too.
0 votes
Correct Answer by Jon Marshall about 6 years 9 months ago

Nitin

VMPS is quite an old technology now.  It is supported on CatOS but not IOS so you won't be able to use it on the 2960 or 3750 switches.

If you want to do dynamic vlan assignment with these switches then you need to look at 802.1x dynamic vlan assignment where the client authenticates to the switch and then is dynamically assigned to a vlan. For this you also need an ACS server where the vlan assignment is configured.

Jon


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Correct Answer
Jon Marshall Wed, 03/31/2010 - 04:52

Nitin

VMPS is quite an old technology now.  It is supported on CatOS but not IOS so you won't be able to use it on the 2960 or 3750 switches.

If you want to do dynamic vlan assignment with these switches then you need to look at 802.1x dynamic vlan assignment where the client authenticates to the switch and then is dynamically assigned to a vlan. For this you also need an ACS server where the vlan assignment is configured.

Jon


Cisco are currently donating money to the Haiti earthquake appeal for every rating so please consider rating all helpful posts.

nitsg.gupta Wed, 03/31/2010 - 04:57

Thanks Jon for your prompt response


So we can do this usning 802.1x and ACS server .

could you please explain it in more detail or Do you have any document on it like configuration example or something.

Thanks,

Nitin

nitsg.gupta Wed, 03/31/2010 - 05:07

Thanks Jon

i'll look in to it and also search for configuration example.

Thankyou very much for your support.

jonathanaxford Wed, 03/31/2010 - 07:04

Just for information, especially if you need an interim solution for allocating VLANs, the "FreeNac" open source application will allow you to do VMPS allocations from a Linux host.

www.freenac.org

It's a great little App, we are using it to assist in the upgrade of a Cisco 6513 that is currently running CatOS and VMPS. It allows us to remove the VMPS function from the 6513 and still eb able to allocate VLANs to end clients with no changes to our setup.


Cheers

Jonathan

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