Zdenek Pala <zpala <at> enterasys.com> writes:

> 
> You can configure more policy profiles.
> 
> Based on mac authentication the radius server will send accept with
> the filter-id attribute containing the policy profile name. Then the
> switch will apply correct policy profile (including the vlan
> assignment) on the traffic ingressing the port with authenticated
> source mac.

Hi,

Ok, so if I understood correctly (also writing this in case I will need to
look it up in the future, hehe):

When the NAC is used, the policy profile will not contain a rule with a
specific MAC address or prefix but only a simple VLAN mapping.

So, I create a policy for each VLAN that I potentially want to apply to a port.

Depending on the NAC's feedback upon authentication (using the MAC address)
the switch will apply the corresponding policy (in this case VLAN) to the
*port*.

That sounds good too.

Now I see a problem with the failsafes. Say you have PCs and printers on
dedicated VLANs. You have a list of MAC adresses of printers and PCs and you
assign them using the NAC. When a PC is put into a printer port and the NAC
is not reachable, there can be no real VLAN assignment in a failsafe policy.
Well you may probably define it, but it wouldn't make any sense since you
would have to know in advance whether it's a PC or printer... chicken & egg.

You could probably set a failsafe policy by site, e.g. putting the ports in
the site's PC VLAN in case the NAC fails. But then the printers would be
offline. Hmmm...


Bye,

Marki


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