netdev - Re: [PATCH net-next] tcp: ipv6: support RFC 6069 (TCP-LD)

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Message-ID: <CADVnQy=2JrtKf-AO8pMn4QFSDQJP4Vm0anBCNx6WggRPd7OA=Q@mail.gmail.com>
Date:   Wed, 27 May 2020 21:19:05 -0400
From:   Neal Cardwell <ncardwell@...gle.com>
To:     Eric Dumazet <edumazet@...gle.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Yuchung Cheng <ycheng@...gle.com>
Subject: Re: [PATCH net-next] tcp: ipv6: support RFC 6069 (TCP-LD)

On Wed, May 27, 2020 at 8:35 PM Eric Dumazet <edumazet@...gle.com> wrote:
>
> Make tcp_ld_RTO_revert() helper available to IPv6, and
> implement RFC 6069 :
>
> Quoting this RFC :
>
> 3. Connectivity Disruption Indication
>
>    For Internet Protocol version 6 (IPv6) [RFC2460], the counterpart of
>    the ICMP destination unreachable message of code 0 (net unreachable)
>    and of code 1 (host unreachable) is the ICMPv6 destination
>    unreachable message of code 0 (no route to destination) [RFC4443].
>    As with IPv4, a router should generate an ICMPv6 destination
>    unreachable message of code 0 in response to a packet that cannot be
>    delivered to its destination address because it lacks a matching
>    entry in its routing table.
>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Acked-by: Neal Cardwell <ncardwell@...gle.com>

Thanks, Eric!

neal