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Showing posts from March, 2021

DHCP Option 43

When an AP boots it needs an IP address.   Then it runs the well-known hunting algorithm to discover a candidate WLC. DHCP option   is part of hunting algorithm where it use DHCP option 43 to serve the WLCs IP address. You can find below how to configure option 43 in DHCP scope. In case of 1 WLC exist on the network the network we must add F104 < IP IN HEX OF WLC1 > Example WLC IP: 10.10.30.100   < 0a0a1e64 >   <---HEX of 10.10.30.100 F104 0a0a1e64                <---How DHCP option 43 should be In case of 2 WLCs exists on the network the network we must add F108 < IP IN HEX OF WLC1 >< IP IN HEX OF WLC2 > Example WLC 1: 10.10.30.100  < 0a0a1e64 >    <---HEX of 10.10.30.100 WLC 2: 10.10.40.100  < 0a0a2864 >    <---HEX of 10.10.40.100 F108 0a0a1e640 a0a2864        ...

Converting lightweigh to standalone AP and vice versa

Connect with console cable to the cisco AP Default credentials Username : cisco Password: Cisco You can find the AP image type by running the command show version When the AP image ends with k9w8 means the AP is lightweight When the AP image ends with k9w7 means the AP is Standalone AP7cad.74ff.975e> sho version Cisco IOS Software, C3700 Software (AP3G2-K9W8-M), Version 15.3(3)JK2, RELEASE SOFTWARE (fc2) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2020 by Cisco Systems, Inc. Compiled Wed 01-Apr-20 04:25 by prod_rel_team ROM: Bootstrap program is C3700 boot loader BOOTLDR: C3700 Boot Loader (AP3G2-BOOT-M) LoaderVersion 15.2(4)JB, RELEASE SOFTWARE (fc1) AP7cad.74ff.975e uptime is 5 minutes System returned to ROM by power-on System image file is "flash:/ap3g2- k9w8 -mx.153-3.JK2/ap3g2-k9w8-xx.153-3.JK2" Last reload reason: Reason Not Known To convert the AP from lightweight to standalone please follow the below pro...