Re: IPv6 TCP: first two SYN packets to local v6 unicast addresses ignored

From: Florian Smeets <flo_at_smeets.xyz>
Date: Sat, 16 Apr 2022 06:29:53 UTC
On 16.04.22 07:22, Gleb Smirnoff wrote:
>    Hi Florian, Hi Michael,

Hi Gleb,

thanks for looking into it.

> 
> On Fri, Apr 15, 2022 at 06:11:13PM -0400, Michael Butler wrote:
> M> >
> M> > Found the culprit 1817be481b8703ae86730b151a6f49cc3022930f. And indeed
> M> > toggling net.inet6.ip6.source_address_validation makes the issue go away
> M> > on latest main.
> M>
> M> I found this commit and the ipv4 analog also cause packets between
> M> non-VNET jails on the same host and to the host itself to be dropped :-(
> 
> I see your mails and will look into the problem ASAP.
> 
> Meanwhile...
> 
> Florian, can you please confirm you are using jails too?

No, two of the 3 hosts I tested on do not use jails.

Florian