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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)

Symptom:
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.

Conditions:
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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Bug Details Include

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