I have a big problem with a vWLC installation and the DHCP relay. I have a interface for guest access in central Switching mode where is a DHCP Server address which is not in the same subnet. The Proxy mode is on, and the vWLC can reach the DHCP over its default gateway on the Interface. When a clients connects to ssid it sends a DHCP request and the controller sends it with its interface ip to the DHCP. So far so good, but the problem is that the vWLC does not send one packet, it sends thousends of same DHCP requests to the Server. The DHCP Server also ansers with thousends of DHCP acks.
When i give the DHCP which is also a vm, a interface in the guest vlan everthing works correct. Does anybody know if there is a problem with DHCP relay over Layer 3?
I have the same problem. I globally disabled DHCP proxy on my vWLC and enabled ip helper address on Layer 3 and now the dhcp works for flexconnect access-point but I have the same issue with my local access-point.
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...