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Cisco Bug: CSCvu04311 - WLC should not send client IPv6 packets to switch in CAPWAP or IP

Last Modified

Jul 28, 2020

Products (1)

  • Cisco 5500 Series Wireless Controllers

Known Affected Releases

8.8(125.0) 8.8(128.39)

Description (partial)

In SDA environment where AireOS WLC is directly connected to collocated Border, Control Plane and Edge, wireless client mac entry is learnt against WLC and Access-tunnel both which causes DHCP issues for wireless client.

Only observed in specific topology where AireOS WLC is directly connected to Fabric in a box (wired). Border, Control Plane and Fabric Edge should all be in one box.
IPv6 NS/ND packets are leaked from WLC's management interface towards the connected switch.
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