netdev - Re: [PATCH net] net: ipv6: Compare lwstate in detecting duplicate nexthops

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Date:   Thu, 6 Jul 2017 00:38:46 +0300
From:   Lennert Buytenhek <buytenh@...tstofly.org>
To:     David Ahern <dsahern@...il.com>,
        Roopa Prabhu <roopa@...ulusnetworks.com>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Robert Shearman <rshearma@...cade.com>
Subject: Re: [PATCH net] net: ipv6: Compare lwstate in detecting duplicate
 nexthops

On Wed, Jul 05, 2017 at 02:14:33PM -0700, Roopa Prabhu wrote:

> > Lennert reported a failure to add different mpls encaps in a multipath
> > route:
> >
> >   $ ip -6 route add 1234::/16 \
> >         nexthop encap mpls 10 via fe80::1 dev ens3 \
> >         nexthop encap mpls 20 via fe80::1 dev ens3
> >   RTNETLINK answers: File exists
> >
> > The problem is that the duplicate nexthop detection does not compare
> > lwtunnel configuration. Add it.
> >
> > Fixes: 19e42e451506("ipv6: support for fib route lwtunnel encap attributes")
> > Signed-off-by: David Ahern <dsahern@...il.com>
> 
> Reported-by: João Taveira Araújo <joao.taveira@...il.com>
> 
> Reported-by: Lennert Buytenhek <buytenh@...tstofly.org>
> 
> Acked-by: Roopa Prabhu <roopa@...ulusnetworks.com>

Tested-by: Lennert Buytenhek <buytenh@...tstofly.org>

Seems to work!  Thanks!