Solved: WIFI AP, IPs and names

leam2 · ‎05-10-2018

Hello,

The model of the equipment is AIR-AP1832I-E-K9.

- Question 1 -
Given the output of this first command:

(Cisco Controller) >show ap config general AP0057.7032.2BA1
[...]
IP Address Configuration......................... DHCP
IP Address....................................... 192.168.13.249
IP NetMask....................................... 255.255.255.0
[...]

Given the output of this second command:

(Cisco Controller) >show sysinfo
[...]
IP Address....................................... 192.168.13.31
[...]

What is this IP "192.168.13.249" which is granted via DHCP?
What is it useful for?
I don't want the Wi-fi AP or WLC to have a DHCP address. I want it to have a static one.

Also, when I connect to the AP either via SSH or via the Web GUI, I use the IP 192.168.13.31.

IP which I set with the command:

(Cisco Controller) > config interface address management 192.168.13.31 255.255.255.0 192.168.13.1

- Question 2 -

Also, what is the difference between the two names below:

(Cisco Controller) >show sysinfo
[...]
System Name...................................... neptune
[...]

(Cisco Controller) >show ap config general AP0057.7032.2BA1
[...]
Cisco AP Name.................................... AP0027.9042.5EF0
[...]

It would be so much easier to type the command:

(Cisco Controller) >show ap config general neptune

Thank you for explaining these things to me.
Best regards.

Rasika Nayanajith · ‎05-10-2018

I hope you are using 1832 as Mobility Express.

This mean inside the AP there is a Controller (WLC) & Access Point (AP) functionality. These two require unique IP address. In your case you have configured 192.168.13.31 for WLC Mgmt & that needs to be used to access WLC GUI page.

When you ssh to that AP you will be landing to (controller)> prompt & "show sysinfo" shows WLC config details. You can use below command to change that system name

(controller) >config sysname <name>

If you want to go to AP shell, you can use "apciscoshell" command

(controller) >apciscoshell

"Show ap x" commands from WLC CLI shows AP config details. In this case you have single AP (1832) & 13.249 is the address allocated via DHCP. Using this IP address, AP go & register to WLC (13.31), yes all happen inside same AP, but logically you can think of two different devices to understand the functionality.

I would leave AP to get IP via DHCP (no point of making it is static as you will not access AP via GUI as AP managed via WLC- 192.168.13.31 which is you set static). You can change AP name via WLC CLI as shown below

(controller) >config ap name <new_AP_ name> <old_AP_name>

Hope I address your queries, if not let me know.

HTH

Rasika

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