Change of IP address for AP and Wireless Controller

The wireless controller 2500 and the APs (Cisco AIR-CAP 16021) will change the IP.  For previous provision of APs, how can I reset the IP or configuration ? Do I need to reset the IP and configuration to factory default ?

How to telnet the APs remotely ? Any reference for this AP model ?

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Muhammad BurhanManager I.T.Commented:
you dont need to reset config of the router for changing IP
please consider

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AXISHKAuthor Commented:
I mean the APs, not the controller as I gurss some configuration has been deployed into it
Muhammad BurhanManager I.T.Commented:
you can reset them to factory default because APs are typically configured to obtain IP automatically. you have to configure ACLs in APs if any exist in current deployment.
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AXISHKAuthor Commented:
how to reset / configure it ?
Craig BeckCommented:
APs usually get their IP via DHCP.  If you change the IP range you may need to change the WLC IP too if APs and WLC are on the same VLAN.
AXISHKAuthor Commented:
Do you mean I don't need to do anything on AP if I change the DHCP assignment after I change the configuration on WLC ?

Tks again.
Craig BeckCommented:
As long as the APs use DHCP, no.
AXISHKAuthor Commented:
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