I want to post a problem that we are having here. We have a Psion G2 Scanner as wireless endpoint and WLC with ACS authentication. We an issue of speed of the transaction carried out by the application in the Psion Scanner which takes around 12-14 sec, which usually occurs around 1-2 secs. We had tested tracert from the scanner to the application server itself and it seems to be in the region of milliseconds.
Also the SSID is not broadcasted and uses WPA. One thing is that when using the DHCP its slow but when the same DHCP acquired address is statically configured then it is fast. Is it anything to do with the DHCP snooping in the WLC or anything else?
If anyone can throw their thoughts in this, its highly appreciated.
Can anybody post your thoughts in this issue or atleast general troubleshooting guideline to find out where the issue lies as I tried to tracert from the scanner to the application server its trying to access and I get reply back in milliseconds.... Does this mean that there is a issue with the application ?
Are these WinMo devices? If you can, try changing the SSID to broadcast and then try connecting. I've noticed slowness with WinMo devices when connecting to a non-broadcast SSID.
If this doesn't work, then you are just going to have to accept the fact that that's how long it takes your device to authenticate against ACS. If your primary goal is to speed up authentication, then you need to look at security mechanisms that don't involve EAP. EAP adds several additional steps to authentication compared to a WPA/WPA2-PSK network.
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
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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.
Powershell SNMP Module (Install-Module -Name SNMP)
SNMP Write Access to...