Subject: Re: packets trickling out of STP-blocked ports

From: Colin Foster <[email-masked]>
Date: Fri, 31 Dec 2021 07:06:51 -0800

Hi Alexandre

On Fri, Dec 31, 2021 at 11:27:16AM +0100, Alexandre Belloni wrote:
> Hi,
> 
> On 30/12/2021 15:07:40-0800, Colin Foster wrote:
> > Hi all,
> > 
> > An idea of how frequently this happens - my system has been currently up
> > for 3700 seconds. Eight "own address as source address" events have
> > happened at 66, 96, 156, 279, 509, 996, 1897, and 3699 seconds. 
> > 
> 
> This is something I solved back in 2017. I can exactly remember how, you
> can try:
> 
> sysctl -w net.ipv6.conf.swp3.autoconf=0

That sounds very promising! Sorry you had to fix my system config, but
glad that this all makes perfect sense. 

> 
> 
> -- 
> Alexandre Belloni, co-owner and COO, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com