netdev - Re: VRF NS for lladdr sent on the wrong interface

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Message-ID: <20201124205748.GA18698@EXT-6P2T573.localdomain>
Date:   Tue, 24 Nov 2020 15:57:48 -0500
From:   Stephen Suryaputra <ssuryaextr@...il.com>
To:     David Ahern <dsahern@...il.com>
Cc:     netdev@...r.kernel.org
Subject: Re: VRF NS for lladdr sent on the wrong interface

On Tue, Nov 24, 2020 at 01:43:54PM -0700, David Ahern wrote:
> On 11/23/20 5:23 PM, Stephen Suryaputra wrote:
> > Hi,
> > 
> > I'm running into a problem with lladdr pinging all-host mcast all nodes
> > addr. The ping intially works but after cycling the interface that
> > receives the ping, the echo request packet causes a neigh solicitation
> > being sent on a different interface.
> > 
> > To repro, I included the attached namespace scripts. This is the
> > topology and an output of my test.
> 
> Can you run your test script on 4.14-4.17 kernel? I am wondering if the
> changes in 4.19-next changed this behavior.
> 
We found the issue on 4.14.200-based kernel.