VLAN class statement

[Simon Hobson]

Everitt, Andrew C wrote:

>We have a Cisco network that's configured to place the Cisco phones 
>into vlan 2.  When the phones send out a DHCP request the server 
>logs reflect the fact its come from vlan 2.  I would like to use the 
>fact that all phones are on vlan 2 to populate the phone (VoIP) 
>class.
>
>After some research I thought that option code 191 is used by the 
>DHCP server for vlan's.  So I set the following class statement up.

You don't need to do any of that - if it's in a different VLAN, then 
it's in a different network and the server will take care of things 
automagically. That's the same whether they are remote (ie the other 
side of a router), or directly attached to the server. Just define 
subnets appropriate to the networks in use and it "will just work".

Think of VLANs as like having multiple non-connected switches and 
NICs and you'll not be far wrong. In essense, VLANs simply allow the 
partitioning to be done inside the switch rather than having multiple 
separate switches.

-- 
Simon Hobson

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