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RE: DHCP vs. RA... again.

To: "Pekka Savola" <pekkas@netcore.fi>, "james woodyatt" <jhw@apple.com>
Subject: RE: DHCP vs. RA... again.
From: "Templin, Fred L" <Fred.L.Templin@boeing.com>
Date: Fri, 3 Aug 2007 14:33:33 -0700
Cc: "IPv6 Operations" <v6ops@ops.ietf.org>
In-reply-to: <Pine.LNX.4.64.0708032352240.5349@netcore.fi>
References: <kGGkfVbBMbsq.qPmmb7gt@87.94.96.42><EF2F0EC839870F43A6637360BC12ABD402C3AFAB@PACDCEXCMB05.cable.comcast.com><001401c7d550$2da35f90$88ea1eb0$@net> <144A7759-8E61-45C2-A6D8-587F5E01B939@cisco.com><1332B58A-D8BC-408E-955C-7DB853E3EE1D@apple.com> <E2A6E7D7-6B02-44AE-A315-8C5575CC1FB1@cisco.com><CAB62842-A568-4335-9552-867D5D922E30@apple.com> <Pine.LNX.4.64.0708032352240.5349@netcore.fi>

> Uh, I hope you guys aren't serious.  Probably all host-side DHCPv6 
> implementations always try to run DHCP regardless of RA bits.  It 
> DHCPv6 server doesn't exist.. so what, at worst, a rogue server could 
> feed you bad information but that would already be possible with ND/RA

> forgeries.  If it does, bingo.

I wonder how much of this comes down to common sense in some
circumstances, e.g., if a node that is inclined to do DHCPv6
comes up on a link over which no RAs are heard, why would it
want to do an RS/RA exchange only to be told "go use DHCPv6"?
Wouldn't it make more sense for the node to just send the
DHCPv6 Solicit w/o incurring the extra round-trip?

Fred
fred.l.templin@boeing.com

References:
- RE: DHCP failures (was RE: Do you want to have more meetings outsi de US ?)
  - From: "Jari Arkko" <jari.arkko@piuha.net>
- RE: DHCP failures (was RE: Do you want to have more meetings outsi de US ?)
  - From: "Durand, Alain" <Alain_Durand@cable.comcast.com>
- RE: DHCP failures (was RE: Do you want to have more meetings outsi de US ?)
  - From: "Tony Hain" <alh-ietf@tndh.net>
- Re: DHCP failures (was RE: Do you want to have more meetings outsi de US ?)
  - From: Ralph Droms <rdroms@cisco.com>
- Re: DHCP vs. RA... again.
  - From: james woodyatt <jhw@apple.com>
- Re: DHCP vs. RA... again.
  - From: Ralph Droms <rdroms@cisco.com>
- Re: DHCP vs. RA... again.
  - From: james woodyatt <jhw@apple.com>
- Re: DHCP vs. RA... again.
  - From: Pekka Savola <pekkas@netcore.fi>

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