Per design, most of the CPU initiated traffic is sent from the management address in the controller. For example, SNMP traps, RADIUS authentication requests, multicast forwarding, and so forth.
The exception to this rule is DHCP related traffic, which is sent from the interface related to the WLAN settings, for controller software version 4.0 and later. For example, if a WLAN uses a dynamic interface, the DHCP request is forwarded using this Layer 3 address.
This is important to take into account when you configure firewall policies or design the network topology. It is important to avoid configuring a dynamic interface in the same sub network as a server that has to be reachable by the controller CPU, for example a RADIUS server, as it might cause asymmetric routing issues.
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
for changes every so often Please feel f...