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Cisco Bug: CSCsg36583 - WLC Changes Client Src MAC address when fowarding packets

Last Modified

Feb 22, 2014

Products (1)

  • Cisco 4400 Series Wireless LAN Controllers

Known Affected Releases


Description (partial)


If clinet sends the packect so that AP encapsulate to LWAPP packect and forward to the WLC. The controller alter the source MAC of the client inside the packet to a differnet source MAC adress.

If this packets hits to Clean Access Server then it simply get drop because of different mac being configured in its filter list.


The wireless client layer 3 roams to a different WLC. The new WLC
uses its MAC address to source the frame from the wireless client.
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