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Cisco AP through HP Procurve to Cisco 5508 WLC on another Subnet

Posted on 2014-11-11
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Last Modified: 2014-11-14
Hello EE,

I have a 2600 Cisco AP model that is connected to an HP Procurve 2910 POE which is getting an IP of 192.168.16.5
The WLC is on another subnet 192.167.16.25.

The AP is pingable from the WLC but the WLC is not registering the AP.  The site the AP is at does not have VLANs but the Site where the WLC is does.

For example the WLC is on trunk native vlan 103
Switchport trunk allowed vlan 103-105

103 - APs
104 - controller
105 - SSID

(These IPs and IDs are not actual for security).  I am wondering if there is a way to get it to recognize on the WLC without having to setup VLANs in the branch as it's really small.
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Question by:operationsIT
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Craig Beck earned 500 total points
ID: 40436137
If you are on the same subnet the AP can learn the IP of the WLC using a subnet broadcast, but in a routed network its not that simple. You need to use one of three methods to tell the AP the IP of the WLC...

1] DHCP - use option 43 to tell the AP the management IP of the WLC
2] DNS - configure a host record for CISCO-CAPWAP-CONTROLLER pointing to the management IP of the WLC
3] Statically configure the managment IP of the WLC on the AP via the CLI

Options 1 and 2 are the obvious choices.

Check out this guide to configure DHCP option 43 on various types of server...

http://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/97066-dhcp-option-43-00.html
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by:operationsIT
ID: 40443935
Thank you
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