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

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Message-ID: <CAJieiUji4hOeRXZoCXfiC6p5NYzeqO_Ou0RYzarX2afXgLzcqA@mail.gmail.com>
Date:   Wed, 5 Jul 2017 14:14:33 -0700
From:   Roopa Prabhu <roopa@...ulusnetworks.com>
To:     David Ahern <dsahern@...il.com>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Lennert Buytenhek <buytenh@...tstofly.org>,
        Robert Shearman <rshearma@...cade.com>
Subject: Re: [PATCH net] net: ipv6: Compare lwstate in detecting duplicate nexthops

On Wed, Jul 5, 2017 at 1:41 PM, David Ahern <dsahern@...il.com> 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>