I have a 4400 ( 126.96.36.199 ) WLC configured with a guest wlan using web authentication & DHCP is configured on ASA . & ADSL line is connected to ASA ( for internet)...this was working , from last 2 days it is not working. guest users are not to get the IP address & login web page. Error message is Limitted connectivty.
ADSL linterent connetion is working fine & from ASA to switch connection is fine & VLAN is also up.
from WLAN end, all parameter are looks good, nothing changed.
So you have verified that a wired device can obtain an ip address and access the Internet. If so, maybe something has changed. Have you looked to make sure dhcp proxy is disabled on the wlc and the FW rules have not changed.
To add to Surendra's post, if this is Anchored Guest, as in two WLCs involved, run the client debug on BOTH controllers at the same time, capturing the initial association.
What I'd be looking for is to make sure the client is even anchoring properly. If you dont see any mention of DHCP on the Anchor WLC, then perhaps the mobility handoff isn't occuring properly (which would typically be a wlan configuration mismatch).... but I'm probably getting ahead of myself.
You just need to make sure that the Anchor WLC see's a DHCP Request from your client and that it sent it out....
If it sent it and no DHCP response comes back.... sounds like you have a dhcp problem still?
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...