Skip site navigation (1)Skip section navigation (2)
Date:      Mon, 02 Jun 2025 19:30:53 +0000
From:      bugzilla-noreply@freebsd.org
To:        net@FreeBSD.org
Subject:   [Bug 286322] IPv6 doesn't work across different FIBs (epair)
Message-ID:  <bug-286322-7501-sF7PNzFzGD@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-286322-7501@https.bugs.freebsd.org/bugzilla/>
References:  <bug-286322-7501@https.bugs.freebsd.org/bugzilla/>

next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D286322

--- Comment #18 from Paige Thompson <paige@paige.bio> ---
2 things I almost forgot:=20

- the NDP entries are listed as permanent so I'm not sure if that implies t=
hat
they are configured from discovery or if they were made static=20

- On linux I'm not sure what the equivalent would be to:

net.inet6.ip6.source_address_validation unless it is
net.ipv6.conf.all.accept_source_route because I was thinking "rp_filter" was
it, but that's not even an option for IPv6 on Linux.=20

https://www.tenable.com/audits/items/CIS_Ubuntu_18.04_LTS_Server_v2.0.1_L1.=
audit:e9984a0cc2171684ec9f44206b4b52b6

https://lists.freebsd.org/archives/dev-commits-src-all/2021-November/001801=
.html
<--- from this description, it actually sounds more like Linux equivalent t=
o:=20

net.ipv6.conf.all.accept_redirects =3D 0
net.ipv6.conf.default.accept_redirects =3D 0 (I checked and made sure they =
were
all set to 0 and one is still reachable from the other.)=20

It's weird to me that I can't find any rp_filter stuff for IPv6 on here tho=
ugh.=20

But yeah I mean take the fact that "it works on other things" with a grain =
of
salt here. Also I might be missing the point of epair entirely, I don't rea=
lly
know what I would even use epair for except for maybe creating a patch betw=
een
two layer 2 bridges. I feel like I saw an example of how to use epair this =
way,
but I don't remember where and I don't think even veth was intended to be u=
sed
this way but you can at least (there are problems, just different problems.)

--=20
You are receiving this mail because:
You are the assignee for the bug.=



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-286322-7501-sF7PNzFzGD>