AP2802 dhcp release or renew ip

[erik86054741]

Can anyone tell me where I can manually renew dhcp ip from AP2802

I want AP2802 dhcp release or renew ip ,thanks

[Sandeep Choudhary]

its registed to controller or its working as mobility express AP/WLC ?

[erik86054741]

its registed to controller and mode flexconnect Branch AP use

[Leo Laohoo]

Exactly what are you trying to accomplish?

[erik86054741]

Before my client use Cisco router as DHCP server , now he wants use HQ DHCP server offer branch AP IP , I know reboot AP can get new IP , but it can not be reboot which user will lost connection what can I do without lost connection ?

[Leo Laohoo]

Why not just edit the "ip helper" address to point to the new DHCP server?

[erik86054741]

I had edit ip helper address in router and I want to renew ip address by manually without effect service

[Leo Laohoo]

Ok, so the IP helper address for the IP address of the AP has been altered (to point to the new DHCP server).
So what is needed now is to reboot one of the APs and see if the AP goes and grabs an IP address from the new DHCP server.

[erik86054741]

Yes,but I don’t want to reboot AP ,I need renew ip addresses for the AP

[Leo Laohoo]

I don't think this is possible.
Depending on the lease time set on the Cisco router, the AP will contact the new DHCP server when the lease time expires.

[marce1000]

 - You can't : the controller acquires knowledge of the AP when it boots ; including it's IP address. Capwap tunnels and other ap <-> controller traffic rely on that information. Changing the IP=alone would confuse the controller. You need to reboot the AP from the controller, in order to get steady managerial knowledge again of the AP by the controller.

 M.

[Leo Laohoo]

Check the DHCP server and clear the lease/reservation.

[marce1000]

 - Better to reboot it, you can do that from the controller.

 M.