DHCP option 43 setup for multiple AP models in the same VLAN

Endorsed Question
Nov 28th, 2012

What is the process for creating DHCP option 43 in Microsoft Windows Server without using any Cisco AP vendor codes so that several different models of AP in the same VLAN can get the IP addresses of the controllers ?



I have this problem too.
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Endorsed by George Stefanick
Stephen Rodriguez about 1 year 4 months ago

Fairly simple, you just define option 43, you don't go in and do the VCI/Option 60.

HTH,
Steve

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Stephen Rodriguez Wed, 11/28/2012 - 07:37

Fairly simple, you just define option 43, you don't go in and do the VCI/Option 60.

HTH,
Steve

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rbauer Wed, 11/28/2012 - 08:28

Will it let you specify the IP addresses of several controllers when you do this it's generic for any AP then ?

Stephen Rodriguez Wed, 11/28/2012 - 09:08

There's no need to specifiy more than one WLC.  When the WLC replies to the discover request, it sends teh AP all the WLC that are in the mobility group, max capacity, and excess availablity.

HTH,
Steve

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rbauer Wed, 11/28/2012 - 10:28

What if you wanted to specify more for failover reasons in case the one is offline ?   Is there a way to specify four ?

Stephen Rodriguez Wed, 11/28/2012 - 10:33

Not to my knowledge.

But again, once the AP has joined one WLC, it knows about all the others in the mobility group.  So if one fails, it will try to join another.  If you configure the primary/secondary/tertiary it will try them in that order.

HTH,
Steve

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George Stefanick Tue, 12/04/2012 - 21:42

Steve -- Great info. VIP Endorsed ..

Always enjoy learning something new I didnt know before.

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Posted November 28, 2012 at 7:32 AM
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