From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dave Eckhardt <davide+p9@cs.cmu.edu>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
In-Reply-To: <F25AA0E2-BE3A-41C6-9E54-10ACA6DB65F4@quintile.net>
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Content-ID: <2184.1451533455.1@LUNACY.UGRAD.CS.CMU.EDU>
Date: Wed, 30 Dec 2015 22:44:15 -0500
Message-ID: <2185.1451533455@LUNACY.UGRAD.CS.CMU.EDU>
Subject: Re: [9fans] bug or feature ?  --- ip/ping -6
Topicbox-Message-UUID: 7c08bf2a-ead9-11e9-9d60-3106f5b1d025

> I would display the IP address once only, rather on every line; as it
> is a common factor.

It's common only until it isn't.  If an intermediate router doesn't
like your packet it might choose to respond, in which case your
intended target doesn't get to.  At least that's why the Unix version
of ping reports the identity of the machine who issued the ICMP response.

Dave Eckhardt