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Cisco Bug: CSCuj84262 - VRRP IPv6 Checksum is Broken

Last Modified

May 13, 2018

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

4.3.2.BASE 5.1.3.BASE

Description (partial)

Symptom:
IPv6 VRRPv3 Groups will not interoperate correctly with any non-IOS-XR device using IPv6 VRRPv3 Groups, even though configured correctly.

Both devices will attempt to operate in MASTER state, both devices will send gratuitous ARPs, both devices will attempt to forward traffic and both devices will increment their "Invalid Checksum" statistic fields.

Conditions:
Any situation where an IPv6 VRRPv3 Virtual Router is configured between an IOS-XR device, and any other non-IOS-XR device.

To be clear, two IOS-XR devices will happily work together - the issue is inly interoperability with a non IOS-XR device.

Related Community Discussions

VRRP IOS-XR compatibility with IOS and Huawei OS
 I have recently tried to configure a VRRP between ASR 9006(IOS-XR) using BVI and CISCO7606-S(IOS) using interface vlan, also VRRP between ASR 9006 using BVI and Huawei NE40E-X3 using interface vlan. I have seen that ASR 9006 response correctly to VRRP advertisements, i mean, if i change the priority on 7606 and Huawei X3 to a higher priority, the ASR 9006 change to backup state, if i change both 7606 and Huawei X3 to a lower priority, the ASR 9006 change to master state. The issue is that the 7606 ...
Latest activity: Aug 13, 2015
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