topic Re: Control and Data path down in Wireless

Control and Data path down

mahjouboi11 — Mon, 22 Nov 2021 14:39:58 GMT

Hi,

I have 5508 WLC in DMZ as ANCHOR and 8540 model as internal WLC, the Guest WLAN was working fine and the mobility anchor was up, suddenly I found the mobility status as (Control and Data Path Down) and Guest Wlan stop working.

please your guidance.

thanks,

Re: Control and Data path down

Mark Elsen — Mon, 22 Nov 2021 15:56:42 GMT

- Check logs on both controllers for more info's if any. You could for instance delete the mobility group from both WLC's and add it back on , can sometimes help in environments where also firewalls are in place.

Re: Control and Data path down

Arshad Safrulla — Mon, 22 Nov 2021 20:01:55 GMT

Did this happen after any recent changes? You can do a mping and eping verify foreign to anchor WLC reachability.

More info on below blog by Rasika

https://mrncciew.com/2013/03/24/mobility-ping-tests/

If communication between anchor and foreign is firewalled, ports 16666 (16667 for secure mobility) and IP protocol 97 must be allowed bidirectionally between the WLC management interfaces of both.

Re: Control and Data path down

Haydn Andrews — Mon, 22 Nov 2021 21:36:07 GMT

Check connectivity between foreign and anchor WLCs, confirm firewalls rules/ ACLs haven't been added. Can always try readding the mobility config and see if that fixes it.