Automated cherry pick of #5483: Do not delete IPv6 link-local route in reconciler #5511
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In the existing code, the IPv6 link-local route on antrea-gw0 is deleted in route reconcile, which results in the IPv6 Neighbor Solicitation sent from Pod's link-local address is dropped on the Node by kenel reverse path filtering, and Pod would mark the antrea-gw0 as a "FAILED" neighbor. Then the Pod's accross Node traffic or the Pod-to-external traffic does not work as expected. This change includes, 1. Do not delete IPv6 link-local routes in the reconcile function, 2. Restore IPv6 link-local route in syncRoute function. Signed-off-by: wenyingd <[email protected]>
wenyingd
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Sep 20, 2023
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wenyingd
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Cherry pick of #5483 on release-1.13.
#5483: Do not delete IPv6 link-local route in reconciler
For details on the cherry pick process, see the cherry pick requests page.