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Ignore IPv6 NAs and drop IPv6 NSs when BACKUP CARP address is used

Authored by ae on Sep 21 2022, 1:35 PM.
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Ignore NAs when they are received for BACKUP CARP address, so ND6 cache will not changed.
Also do not send NS from BACKUP CARP addresses, this won't confuse network switch and it won't complain about MAC addresses flapping.
OpenBSD has similar solution for NAs.

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rG FreeBSD src repository
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Event Timeline

ae held this revision as a draft.
ae published this revision for review.Sep 21 2022, 1:40 PM
ae edited the summary of this revision. (Show Details)
ae added reviewers: bz, melifaro, glebius, network.
This revision was not accepted when it landed; it landed in state Needs Review.Oct 6 2022, 5:01 PM
This revision was automatically updated to reflect the committed changes.