Re: git: 3eaffc626589 - main - netinet6: allow disabling excess log messages

From: Bjoern A. Zeeb <bzeeb-lists_at_lists.zabbadoz.net>
Date: Tue, 14 Mar 2023 22:43:30 UTC 
On Mon, 13 Mar 2023, Pawel Biernacki wrote:

> The branch main has been updated by kaktus:
>
> URL: https://cgit.FreeBSD.org/src/commit/?id=3eaffc626589eb2fc20a3c9c87eb8ab0ee89e783
>
> commit 3eaffc626589eb2fc20a3c9c87eb8ab0ee89e783
> Author:     Pawel Biernacki <kaktus@FreeBSD.org>
> AuthorDate: 2023-03-13 16:36:11 +0000
> Commit:     Pawel Biernacki <kaktus@FreeBSD.org>
> CommitDate: 2023-03-13 16:46:21 +0000
>
>    netinet6: allow disabling excess log messages
>
>    RFC 4443 specifies cases where certain packets, like those originating from
>    local-scope addresses destined outside of the scope shouldn't be forwarded.
>    The current practice is to drop them, send ICMPv6 message where appropriate,
>    and log the message:
>
>    cannot forward src fe80:10::426:82ff:fe36:1d8, dst 2001:db8:db8::10, nxt
>    58, rcvif vlan5, outif vlan2
>
>    At times the volume of such messages cat get very high. Let's allow local
>    admins to disable such messages on per vnet basis, keeping the current
>    default (log).

Thanks for the change.  I find the commit message a "bit misleading" ;-)

If that log amount gets high, the local admin should take care of some
other hosts ... really ... to reduce the logging and not disable the
messages.


>    Reported by:    zarychtam@plan-b.pwste.edu.pl
>    Reviewed by:    zlei (previous version), pauamma (docs)
>    Differential Revision:  https://reviews.freebsd.org/D38644

-- 
Bjoern A. Zeeb                                                     r15:7