Wednesday 5 April 2023

PART 3 - C9800 - Troubleshooting Commands - Guest Central Web Authentication(CWA) or Local Web Authentication(LWA) Issues

 Guest Central Web Authentication(CWA) or Local Web Authentication(LWA) Issues


This scenario covers guest client web authentication issues, client not receiving redirect URL, not able to authenticate.

Outputs to check key performance indicators KPIs to identify if there could be web authentication issues:

Check for clients stuck in webauth state, check the number of intercepted request, received messages and replied error status replies 

show wireless client summary | i Webauth|Number

show wireless stats client detail | i HTTP

Additional logs to collect for web authentication issues:

Always-On Tracing: 

show logging profile wireless filter mac <rClient_MAC> to-file always-on-<FILENAME.txt>

RadioActive Tracing:

debug wireless mac <Client_MAC> 

Embedded Captures filtered by client MAC:

monitor capture MYCAP clear

monitor capture MYCAP interface Po1 both

monitor capture MYCAP buffer size 100

monitor capture MYCAP match any

monitor capture MYCAP inner mac <Client_MAC>

monitor capture MYCAP start

!!Reproduce

monitor capture MYCAP stop

monitor capture MYCAP export flash:|tftp:|http:.../filename.pcap

show wireless stats client summary | i <Client_MAC>

show wireless stats client delete reasons

show tech wireless client mac-address <Client_MAC>

!!Client WLAN Adapter wireshark captures or Over The Air(OTA) sniffer trace.

show ip http server all

show tcp statistics

show ip traffic

show ip access-list

show tech-support wireless client 

show tech-support wireless client mac-address <Client_MAC>


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