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Date:      Sun, 20 Jul 2014 02:04:10 -0700
From:      Loganaden Velvindron <logan@elandsys.com>
To:        freebsd-net@freebsd.org
Cc:        gnn@freebsd.org, bz@freebsd.org
Subject:   IPv6 nodeinfo default behaviour
Message-ID:  <20140720090410.GA7990@mx.elandsys.com>

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Hi guys,

OpenBSD recently removed support for RFC 4620 from their kernel completely.

The default value is 3 in FreeBSD.

According to the RFC:

 Security Considerations

   This protocol shares the security issues of ICMPv6 that are
   documented in the "Security Considerations" section of [5].

   This protocol has the potential of revealing information useful to a
   would-be attacker.  An implementation of this protocol MUST have a
   default configuration that refuses to answer queries from global-
   scope [3] addresses.

I suggest that we switch to 0 by default to be more RFC compliant.

Before I send the patch, I would like to get feedback.

Kind regards,
//Logan
C-x-C-c



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