I have been having a lot of issues with clients at a site that have a WLC and use EAP-TLS to an ACS server across the WAN. Most of the issues are roaming related in that the re-authentication time is very long. I have implemented QOS for the RADIUS traffic but they are still reporting problems.
Looking at the logs on the WLC (220.127.116.11) I see messages simliar to this one for all 5 ACS servers.
RADIUS server 10.x.x.x:1645 deactivated in global list
RADIUS server 10.x.x.x:1645 failed to respond to request (ID 65) for client 00:0b:6b:87:54:d2 /user 'unknown'
What concerns me is the word "deactivated". Does this mean that if an unknown client attempts to connect to this wlan and ACS is unable to authenticate it then the ACS server is "disabled" by the WLC?
It doesnt disable the ACS permanently. It will cycle through it again should the other ACS stop...
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
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
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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. Prerequisites: Powershell SNMP Module
(Install-Module -Name SNMP) SNMP Write Access to y...