Bug#1054642: Failing ARP relay from external -> Linux bridge -> veth port --> NS veth port

From	Daniel Gröber <dxld@darkboxed.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1054642: Failing ARP relay from external -> Linux bridge -> veth port --> NS veth port
Date	2023-10-29 11:50 +0100
Message-ID	<HubwJ-1Esa-3@gated-at.bofh.it> (permalink)
References	(2 earlier) <Htrkd-1cgg-1@gated-at.bofh.it> <Htrkd-1cgg-5@gated-at.bofh.it> <HubwJ-1Esa-5@gated-at.bofh.it> <Htrkd-1cgg-5@gated-at.bofh.it> <HubwJ-1Esa-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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Hi Peter,

On Fri, Oct 27, 2023 at 09:29:25AM +0000, peter.gasparovic@orange.com wrote:
> No attempt at all? Then it's against your own rules I've read before
> submitting this.

I think Luca was a bit harsh here, I'd be happy to help debug this. From a
first look it seems unlikely this is related to iproute2, smells more like
a kernel issue to me, but either way we need a reproducer.

So first step to move this forward is to put together a self contained set
of instructions to reproduce the problem. Your original report is a bit
sparse on context and details.

If you don't feel up to compiling the reproducer script yourself you could
start by showing us your system state using

    $ ip -d addr show   # on the host and inside the NS if you could
    $ bridge -d link; bridge fdb

snippets from /etc/network/interfaces or similar relevant config would help
too.

--Daniel

Thread

Bug#1054642: Failing ARP relay from external -> Linux bridge -> veth port --> NS veth port Luca Boccassi <bluca@debian.org> - 2023-10-27 11:30 +0200
  Processed: Re: Bug#1054642: Failing ARP relay from external ->  Linux bridge -> veth port --> NS veth port "Debian Bug Tracking System" <owner@bugs.debian.org> - 2023-10-27 11:30 +0200
  Bug#1054642: Failing ARP relay from external -> Linux bridge -> veth port --> NS veth port Daniel Gröber <dxld@darkboxed.org> - 2023-10-29 11:50 +0100
    Bug#1054642: Failing ARP relay from external -> Linux bridge -> veth port --> NS veth port Daniel Gröber <dxld@darkboxed.org> - 2023-10-30 13:10 +0100
      Bug#1054642: Failing ARP relay from external -> Linux bridge -> veth port --> NS veth port Daniel Gröber <dxld@darkboxed.org> - 2023-11-11 01:40 +0100
        Bug#1054642: Failing ARP relay from external -> Linux bridge -> veth port --> NS veth port Daniel Gröber <dxld@darkboxed.org> - 2023-11-18 03:50 +0100
          Bug#1054642: Failing ARP relay from external -> Linux bridge -> veth port --> NS veth port Daniel Gröber <dxld@darkboxed.org> - 2023-12-03 11:20 +0100
            Bug#1054642: Failing ARP relay from external -> Linux bridge -> veth port --> NS veth port Uwe Kleine-König <ukleinek@debian.org> - 2024-11-06 22:00 +0100
              Bug#1054642: Failing ARP relay from external -> Linux bridge -> veth port --> NS veth port Bastian Blank <waldi@debian.org> - 2025-03-25 09:10 +0100
                Bug#1054642: RE: Bug#1054642: Failing ARP relay from external -> Linux bridge -> veth port --> NS veth port Ben Hutchings <ben@decadent.org.uk> - 2025-03-26 19:30 +0100

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