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Re: [v6ops] Please review the No IPv4 draft

"Niall O'Reilly" <niall.oreilly@ucd.ie> Tue, 22 April 2014 16:06 UTC

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Date: Tue, 22 Apr 2014 17:07:13 +0100
Message-ID: <m24n1l8i1a.wl%Niall.oReilly@ucd.ie>
From: Niall O'Reilly <niall.oreilly@ucd.ie>
To: Ted Lemon <ted.lemon@nominum.com>
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References: <534BF5A5.5010609@viagenie.ca> <20140415083615.GB43641@Space.Net> <534D3672.3060702@viagenie.ca> <3446106.k0lm12lQ8b@linne> <alpine.DEB.2.02.1404161034220.10236@uplift.swm.pp.se> <CAKD1Yr2D+ZMi-UctuvrMzyqoHqgBy5O26GODT=bRwq0PsvLgLw@mail.gmail.com> <alpine.DEB.2.02.1404161053110.10236@uplift.swm.pp.se> <20140416155714.GB64039@ricotta.doit.wisc.edu> <alpine.DEB.2.02.1404162310050.10236@uplift.swm.pp.se> <B21C1073-ABBE-44FE-964F-65AD7849CD31@delong.com> <alpine.DEB.2.02.1404170658440.10236@uplift.swm.pp.se> <4EABCE38-7CBA-4C95-84EE-686A2300F26E@delong.com> <8E450CDC-FFC5-4649-89FE-387836C8E40B@nominum.com> <CAEmG1=oNyotn6tcKyxUuLCW0of-MxVrvUB08jsygjo8kidgt0g@mail.gmail.com> <CF7BDD91.1911D%wesley.george@twcable.com> <m1Wcb5y-0000FMC@stereo.hq.phicoh.net> <BD6D04D4-AD31-462D-A0C7-AD74DBCF23AD@nominum.com> <m1WcbPl-0000COC@stereo.hq.phicoh.net> <118D079B-FC99-4606-B289-4201137A5815@nominum.com> <CAKD1Yr2f-RH4i3creThGGSx2YxdUTbEW1ACW_0TXz857Kbmv7w@mail.gmail.com> <9B4139A3-77F7-4109-93AD-A822395E5007@nominum.com>
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Cc: Philip Homburg <pch-v6ops-3a@u-1.phicoh.com>, "v6ops@ietf.org WG" <v6ops@ietf.org>
Subject: Re: [v6ops] Please review the No IPv4 draft
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At Tue, 22 Apr 2014 11:39:11 -0400,
Ted Lemon wrote:
> 
> On Apr 22, 2014, at 11:32 AM, Lorenzo Colitti <lorenzo@google.com> wrote:
> > In networks that support only IPv4, filtering DHCPv4 packets is
> > probably supported.

  Confirmed from personal experience on the campus network where I work.

> > Filtering DHCPv6 or RA packets may not be
> > supported and may require hardware upgrades. 

  Confirmed as mentioned above.

> > On such networks, the
> > damage from rogue DHCPv6 or RA packets is mitigated by happy
> > eyeballs.

  I cannot personally confirm this.

> > The damage from rogue "shut down your entire IPv4 stack"
> > options cannot be.

  None of us can confirm this, as it depends on future client
  implementation.

> Do you have data on this, or is it just supposition?

  I expect that the two points I was able to confirm above are widely
  known among those who have tried to implement IPv6 on an existing
  IPv4-only network.

  Best regards,
  Niall O'Reilly

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