Cisco Bug: CSCvv18012 - IPv6 configuration affects IPv4 traffic when IPSG configured
Oct 09, 2020
- Cisco Catalyst 3850 Series Switches
Known Affected Releases
Symptom: 3850/9K switches running on 16.9.X and later releases and configured with both ipv4 and ipv6 IPSG stops passing ipv4 traffic. Conditions: whenever any ipv6 change is made on the switch ( enabling or disabling ipv6 globally or on the SVI etc.) or the ipv6 entry in the IPDT database move from REACHABLE state to any other.
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Bug Details Include
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