What type of WLC? Just to take a guess.... do you have more than one port on the WLC connected to your switch? That could be why... If you have a 4400 and using multiple ports on the WLC, make sure you either use LAG or you have an AP Manager interface per por. If you are using a 2100 and multiple vlans connected to trunk ports... make sure you not allow the management and ap manager vlan on the other ports and vice versa.
If you see duplicate mac errors on the switch, then there might be an issue with the LAG. Double check your configuration on the switch and the WLC and maybe remove LAG and re apply LAG to the WLC and reboot:) I know that if you still have issues the last case senerio is to reload the code and confgiure the WLC from scratch... don't upload configuration.
Transferring Crash file from standby:
Login to the Active WLC in HA.
(Cisco Controller) >transfer upload datatype crash
(Cisco Controller) >transfer upload filename <Desired filename>
(Cisco Controller) >transfer up...
This is the start of a display filter cross reference between Wireshark and OmniPeek.
The 1st installment is a table of advanced filters. More filters will be added as time allows.
It is a living doc, so check back for changes every so often
Please feel ...
I have created a Powershell script to automatically add a Wireless Guest User on Cisco WLCs. (tested on 2500 Series)
The script should be completely self explanatory.
Powershell SNMP Module (Install-Module -Name SNMP)
SNMP Write Access to...