[Bug 294817] sys/netinet/carp:unicast_v4 fails intermittently

From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 26 Apr 2026 18:20:19 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294817

Zhenlei Huang <zlei@FreeBSD.org> changed:

           What    |Removed                     |Added
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           Assignee|testing@FreeBSD.org         |zlei@FreeBSD.org

--- Comment #3 from Zhenlei Huang <zlei@FreeBSD.org> ---
The main reason to choose routed is to build the route table dynamically so do
not need repeat hand writing route entries. Another consideration is to have
routed learn the kernel route event so maybe some regression can be caught in
future. Indeed it does caught one ( changes made to the socket by @glebius IIRC
).

IIRC, when I was working on the regression test, I found at least one problem.

One is on CARP master / slave transition, the routed appears to still install
default route to the master. I'm not sure if this is related to this reported
issue, but I think it deserves investigation. I'll look into this issue in next
few days.

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