Cisco Bug: CSCvi88994 - ipv6 packets arrive with bad checksum over vpls due to QoS
May 11, 2018
- Cisco ASR 9000 Series Aggregation Services Routers
Known Affected Releases
Symptom: OSPFv3 does not establish over VPLS, ipv6 icmp fails, bad checksum is reported: *Apr 9 12:41:03.892: %OSPFv3-4-ERRRCV: OSPFv3-666-IPv6 Received invalid packet: Bad Checksum from FE80:FF97::225:45FF:FE23:9751, GigabitEthernet0/1.100 Cause is that source address of incoming hello packet is corrupted. Initial packet had address FE80::225:45FF:FE23:9751, but after PE2 it became FE80:FF97::225:45FF:FE23:9751. Conditions: Configure service-policy and ACL with log keyword together on PE interface in CE2 direction.
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