topic Re: help ...5520 wlc cannot change hostname in Wireless

help ...5520 wlc cannot change hostname

Meuserid1979 — Mon, 05 Jul 2021 18:53:17 GMT

Hi experts,

i needed to change the wlcs hostnames but to my surprise i simply cannot change it. i attached the message when im trying to do it. pls help. thanks in advance!

Re: help ...5520 wlc cannot change hostname

Leo Laohoo — Thu, 26 Mar 2020 02:14:16 GMT

What hostname are you changing to?

Re: help ...5520 wlc cannot change hostname

Meuserid1979 — Thu, 26 Mar 2020 02:16:13 GMT

system name of the wlc. the hostname im using met the criteria already but still im not able to change it.

Re: help ...5520 wlc cannot change hostname

Scott Fella — Thu, 26 Mar 2020 02:31:31 GMT

You changing this from the cli or the gui? That should work fine.

Re: help ...5520 wlc cannot change hostname

Meuserid1979 — Thu, 26 Mar 2020 02:35:50 GMT

hi, i tried both gui and cli but having the same message. and i couldnt change it

Re: help ...5520 wlc cannot change hostname

Meuserid1979 — Thu, 26 Mar 2020 02:37:34 GMT

the version im using is 8.10.112.0.

Re: help ...5520 wlc cannot change hostname

Scott Fella — Thu, 26 Mar 2020 03:35:31 GMT

Post the output from the cli and configure the hostname with a different name

Re: help ...5520 wlc cannot change hostname

Meuserid1979 — Thu, 26 Mar 2020 03:56:01 GMT

ok seems like the wlc doesnt want an underscore.... i tried below and it accepted the TESTNAME. but weirdly the hostname configured during the initial configuration has an underscore on it.

(Cisco Controller) >config sysname DC1_01A_WLC1

Hostname is not compliant to RFC !.
Hostname can contain max of 24 characters namely Upper/lowercase letters,numbers,dot,hyphen.
Hostname should always start with an alphabet and should not end with '.' or '-'.

(Cisco Controller) >config sysname TESTNAME
Warning! System name change will disrupt the existing RF Grouping.
(Cisco Controller) >show sysinfo

Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 8.10.112.0
RTOS Version..................................... 8.10.112.0
Bootloader Version............................... 8.3.15.177
Emergency Image Version.......................... 8.2.166.0

OUI File Last Update Time........................ Tue Feb 06 10:44:07 UTC 2018

Build Type....................................... DATA + WPS

System Name...................................... TESTNAME
System Location..................................

Re: help ...5520 wlc cannot change hostname

Meuserid1979 — Thu, 26 Mar 2020 04:06:16 GMT

ok seems this image doesnt accept underscores. initial setup hostname has underscore but not upgraded yet to 8.10.112

Re: help ...5520 wlc cannot change hostname

Leo Laohoo — Thu, 26 Mar 2020 04:59:37 GMT

The screenshot posted specifically states "Hostnames can contain max of 24 characters namely upper/lowercase letters, numbers, dot and hyphen".
Nowhere does it state that underscores are allowed/accepted.

Re: help ...5520 wlc cannot change hostname

Meuserid1979 — Thu, 26 Mar 2020 05:17:32 GMT

and why there is this restriction on this new firmware? who ever doing the wlc os programming should just leave the hostname modification alone. its just a hostname. we did ap priming for 9aps already, what if we did that for 100 of aps, that will be pain in the arse to redo it.

Re: help ...5520 wlc cannot change hostname

Scott Fella — Thu, 26 Mar 2020 05:38:31 GMT

Yeah... it does state what is allowed and what isn’t. Use a dash ‘-‘ if you really need a delimiter.

Re: help ...5520 wlc cannot change hostname

Scott Fella — Thu, 26 Mar 2020 05:51:31 GMT

Well that is a feature request you can bring up to Cisco. As far as priming AP’s, you can automate that or build a script to easily change that.