[Bug 278232] Jail IPv4 source address selection inside a jail not working

From: <bugzilla-noreply_at_freebsd.org>
Date: Sat, 27 Apr 2024 15:01:39 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=278232

--- Comment #12 from Dirk Meyer <dinoex@FreeBSD.org> ---

Sorry this text is still unclear to me.

I would expect "ip4.saddrsel" to allow source selection
and "ip4.nosaddrsel" will disable it.

but "ip4.nosaddrsel" is not documented in "man jail"?

I confirmed removing "ip4.saddrsel" does not change anything.

quote from "man jail"

[...]
For IPv4 the first address given will be used as the source address
when source address selection on unbound sockets cannot find a
better match.  [...]

What is the correct way to have "source address selection" in the jail?

For now only with "ip4=inherit" I can see the RFC1918 IP is used.

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