How CAPWAP Discovery Process Works on Cisco WLC

[@xunililak1674]

I wish I had ran across your channel much much sooner, I had some AP2802E that ran me crazzzzy, CAPWAP protocol has its ups and downs. You done very well!

[@karuppasamypandian5226]

Thank you so much 🥰

[@dushyanthpeddi9690]

Thank you for sharing. Nice video

[@c333ton]

Thank you!

[@shat1478]

Thanks very helpful !!! I facing some issue , wlc 5520 not have DHCP server(internet) . Should I use DHCP relay from L3 device ?

[@CiscoNetworking]

Internal DHCP feature is no more supported on AireOS, so we have to move the DHCP service to any other capable device in the network. It can be your Gateway device (Router/Switch with DHCP capability) or any server (Windows/Linux) in any your network. You can use DHCP server(Primary & Secondary) configuration in your interface on WLC and in some scenarios you can use "helper address' too.
Even though this question is posted on CAPWAP process but i hope this is not for APs, even for APs the DHCP model will be same.

[@kelvinMullings]

Hi, What does this mean> Discarding msg CAPWAP_WTP_EVENT_REQUEST(type 9) in CAPWAP state: DTLS Setup(3).

[@CiscoNetworking]

Could you please help me where did you saw this message, on a Mobility Express or EWC deployment?

[@Rajesh-kumar213]

While your access point trying to connect with wlc..you will get this msg

[@akashchoudhary1263]

Can you please make a video on how to upgrade CSPC ?

[@CiscoNetworking]

What do you mean by CSPC, Cisco collector

[@Pontie66]

Recently we have an issue with wireless in a customer.... some users weren't getting IP address from the DHCP via wireless. We could see the users connected but without IP addresses. I checked the access points, some policies and no issues found. The lan (cabling) was working issues free. After all stressed caused by the customer, a colleague decided to clear the arp table, and all users started get their IPs. What's the relation between ARP table and DHCP?

[@CiscoNetworking]

Looks like a Bug and AP is not forwarding some of the packets. Cisco TAC will be the right team for providing the RCA for issues like this. If AP is able to serve one client successfully that means the configuration is correct, everything else will fall under limitations like there is no IP available for DHCP, etc. As you already validated all those areas then only reason for this will be an issue from AP side.

[@HashimKhan-uq3os]

Please let me know the CAPWAP header size. I am facing MTU mismatch issue

[@CiscoNetworking]

Please follow the instructions given in below link
www.cisco.com/c/en/us/support/docs/wireless/wireless-lan-controller-software/211405-Configure-CAPWAP-Path-MTU-Discovery.html

[@santhujathan3697]

Once we add AP to WLC I am not able to access AP through ssh or telnet is there any additional configuration required?

[@CiscoNetworking]

You have to enable SSH/Telnet needs to be globally enabled in AP Global settings page. You have to provide the a credencials too as the factory default username will be no longer valid after associated with a WLC

[@NARESHKUMAR-sn5jw]

is,t the port number 12222 should be mapped in broadcast to unicast forwarding?

[@CiscoNetworking]

Yes, if you are using Older/Legacy LWAPP APs in your network with Helper Address discovery mechanism.

[@gtofficial8285]

Should have been more descriptive.

[@RishiRap]

overall, incomprehensible.

[@CiscoNetworking]

May I know what exactly you are looking for, anything specific that I missed?

[@d-nina826]

I try it but l can't

[@CiscoNetworking]

Didn't got that, could you explain the scenario here

[@d-nina826]

@@CiscoNetworking why not

[@CiscoNetworking]

@@d-nina826 Again I am not getting it, what did you try and what didnt work?

[@josemontanez3194]

Chochia pet

[@technicalshayaz9107]

Thank you for sharing. Nice video