03-01-2013 09:36 AM - edited 07-03-2021 11:39 PM
Hi ,
Today i face strange error i cant find solution. If anyone knows please help.
3/1/2013 6:30:43 PM x.x.x.x Error EFWLC01: *apfMsConnTask_0: spam_lrad.c:18962 LWAPP header parsing failed, dropping the packet
3/1/2013 6:30:42 PM x.x.x.x Error EFWLC01: *spamReceiveTask: spam_lrad.c:18962 LWAPP header parsing failed, dropping the packet
3/1/2013 6:30:42 PM x.x.x.x Error EFWLC01: *spamReceiveTask: spam_lrad.c:19081 Received invalid UDP port (5247) in the packet from AP 70:81:05:af:bb:e0, dropping the packet
Where as this 70:81:05:af:bb:e0 mac is of ap-manager Interface
During Error Message some clients were facing outage. But now error is not recieved again. I want to know root cause of this error message which i canot find on cisco website.
WLC Controller Model is AIR-WLC2106
Software Version 7.0.235.0
Up Time 199 days, 11 hours, 2 minutes
Jawad
03-04-2013 04:51 AM
UDP 5247 is the CAPWAP/LWAPP control protocol. The protocol packets obviously must have been corrupted and that is why the Controller could not interprete messages from the AP. The only resolution is to either use the Cisco bug toolkit and search if it is a bug perculiar to 2106 WLC or you open a TAC support case.
I would suggest that you hold off till the error occurs again. If it does, swap the AP and if it continues, open a TAC case.
Cheers
03-10-2013 04:48 AM
If you want to figure out the root cause later on, where the clients are out of service:
make sure to have:
debug client < mac address of client >
show traplog
show msglog
show arp switch
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