netdev - Re: [PATCH v4 net-next 0/3] add support for sending RFC8335 PROBE

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Date:   Thu, 19 Nov 2020 20:51:12 -0700
From:   David Ahern <dsahern@...il.com>
To:     Andreas Roeseler <andreas.a.roeseler@...il.com>,
        davem@...emloft.net
Cc:     kuznet@....inr.ac.ru, yoshfuji@...ux-ipv6.org, kuba@...nel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 net-next 0/3] add support for sending RFC8335 PROBE

On 11/17/20 5:46 PM, Andreas Roeseler wrote:
> The popular utility ping has several severe limitations such as the
> inability to query specific  interfaces on a node and requiring
> bidirectional connectivity between the probing and the probed
> interfaces. RFC8335 attempts to solve these limitations by creating the
> new utility PROBE which is a specialized ICMP message that makes use of
> the ICMP Extension Structure outlined in RFC4884.
> 
> This patchset adds definitions for the ICMP Extended Echo Request and
> Reply (PROBE) types for both IPv4 and IPv6. It also expands the list of
> supported ICMP messages to accommodate PROBEs.
> 

You are updating the send, but what about the response side?