Bug #12721
closed
IPv6 gateway group using link local addresses incorrectly logs a gateway change because it not including interface scope properly
Added by Loren McQuade almost 3 years ago.
Updated over 2 years ago.
Plus Target Version:
22.05
Affected Architecture:
All
Description
Change `get_gwgroup_memebers()` to include the interface in link-local IPv6 addresses. This way, the `gwip` value will match the return value of `route_get_default()`. The mismatch was causing `fixup_default_gateway()` to spam "Gateway, switch to: XXX" when default IPv6 gateway was set to a Gateway Group.
- Target version set to 2.7.0
- Plus Target Version set to 22.05
- Status changed from Pull Request Review to Feedback
- Subject changed from Change get_gwgroup_members to include interface in link-local IPv6 addresses to IPv6 gateway group using link local addresses incorrectly logs a gateway change because it not including interface scope properly
Updating subject for release notes.
- Assignee set to Loren McQuade
I see you have assigned this back to me, but I am unsure of what further action is needed on my part. I can verify after 22.05 ships, but that seems like it could be too late.
It lacked an assignee before, mostly it's for tracking who fixed the issue.
Ideally we'd like feedback from someone who could reproduce the problem before to know if it's fixed, but they'd have to be testing it on a 22.05 (or recent 2.7.0) snapshot.
If you could give some guidance about how to reproduce the issue and confirm that it's working properly now, others may be able to test it if you cannot.
How to verify that this change is working:
1) Create gateway group "WAN_IPv6" which contains:
Tier 1: WAN1 (my gateway has a link-local fe80:: address)
Tier 2: WAN2
2) Set "Default gateway IPv6" to "WAN_IPv6" group
3) Go to "System Logs/Gateways" and verify not getting spammed with gateway switch messages, even when gateway is not changing:
"Gateway, switch to: XXX"
- Status changed from Feedback to Resolved
Seems to be OK on the latest snapshot. I can't reproduce the problem there. Failover group with two IPv6 tiers, both are fe80 gateways, Group set as default. Gateways show online, group shows online, no log messages about the gateway switching.
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Updated by 
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Updated by Viktor Gurov