netdev - ping6: why TTL instead of Hop Limit?

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Message-ID: <CAAfuxnJX0ULFvUbrNag2TE3brTZiBv6x9X9_bKnAuD9Q_Oe1Jg@mail.gmail.com>
Date:	Sat, 7 Jan 2012 19:07:03 +0100
From:	Dan Luedtke <maildanrl@...glemail.com>
To:	netdev@...r.kernel.org
Subject: ping6: why TTL instead of Hop Limit?

Hello everyone,

I was just wondering why there is a TTL-field in ping6, although the
corresponding field in the IPv6 header is called "Hop Limit". [1]

Example:
> ping6 -c 1 www.linux-ipv6.org
> 64 bytes from 2001:200:dff:fff1:216:3eff:fea4:f9e9: icmp_seq=1 ttl=48 time=309 ms

What I expected:
> 64 bytes from 2001:200:dff:fff1:216:3eff:fea4:f9e9: icmp_seq=1 hl=48 time=309 ms

Anyone an idea?
Should I write a patch or is there a special reason for this?

best regards,
Dan

[1] RFC 2460, 3.  IPv6 Header Format, page 4,
http://tools.ietf.org/html/rfc2460#page-4
-- 
Dan Luedtke
http://www.danrl.de
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