Re: Updating to RFC6434 to deal with 8200-style header insertion by IPIP
Mikael Abrahamsson <swmike@swm.pp.se> Thu, 02 November 2017 13:04 UTC
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Date: Thu, 02 Nov 2017 14:03:50 +0100
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: Michael Richardson <mcr+ietf@sandelman.ca>
cc: 6man WG <ipv6@ietf.org>
Subject: Re: Updating to RFC6434 to deal with 8200-style header insertion by IPIP
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On Wed, 1 Nov 2017, Michael Richardson wrote: > Removing redundant IPIP headers at the end-host provides no benefit to the > end-host. The end-host does this in order to facilitate some unknown service > in the middle that did something. If we want to enable such things to work > without prior permission (cf: "permissionless innovation") then we need to > fix hosts to do this. I don't think we should. Whatever is done in the middle that does encap, should also make sure it's decap:ed before it reaches the end host. > > If the device isn't configured to do IPsec (even by default), then I don't > > think it should do what you describe. > > Yet we skip other extension headers in order to find the ULP. > In fact, a host that has *NO* IPsec code *at all* will skip it as an unknown > header.... Because we got this wrong, we couldn't use AH to secure ND or any > other multicast (like OSPF) without causing of a flag day. AH became totally > USELESS. It was sad. Right. I forgot that IPSEC is an extension header in IPv6, I tought of it as something that was encapsulated. So I take back what I said. -- Mikael Abrahamsson email: swmike@swm.pp.se
- Updates to RFC6434 Timothy Winters
- RE: Updates to RFC6434 Turner, Randy
- Re: Updates to RFC6434 Timothy Winters
- RE: Updates to RFC6434 Templin, Fred L
- Re: Updates to RFC6434 Timothy Winters
- RE: Updates to RFC6434 Templin, Fred L
- Re: Updates to RFC6434 Tim Chown
- RE: Updates to RFC6434 Templin, Fred L
- Re: Updates to RFC6434 Tim Chown
- RE: Updates to RFC6434 Templin, Fred L
- Updating to RFC6434 to deal with 8200-style heade… Michael Richardson
- Re: Updating to RFC6434 to deal with 8200-style h… Brian E Carpenter
- Re: Updating to RFC6434 to deal with 8200-style h… Michael Richardson
- Re: Updating to RFC6434 to deal with 8200-style h… Mark Smith
- Re: Updating to RFC6434 to deal with 8200-style h… Ole Troan
- Re: Updating to RFC6434 to deal with 8200-style h… Erik Kline
- Re: Updating to RFC6434 to deal with 8200-style h… Michael Richardson
- Re: Updating to RFC6434 to deal with 8200-style h… Mark Smith
- Re: Updating to RFC6434 to deal with 8200-style h… Mikael Abrahamsson
- Re: Updating to RFC6434 to deal with 8200-style h… Ole Troan
- Re: Updating to RFC6434 to deal with 8200-style h… Michael Richardson
- Re: Updating to RFC6434 to deal with 8200-style h… Michael Richardson
- Re: Updating to RFC6434 to deal with 8200-style h… C. M. Heard
- Re: Updating to RFC6434 to deal with 8200-style h… Tim Chown
- Re: Updating to RFC6434 to deal with 8200-style h… Michael Richardson
- Re: Updating to RFC6434 to deal with 8200-style h… Mikael Abrahamsson
- Re: Updating to RFC6434 to deal with 8200-style h… C. M. Heard
- Re: Updating to RFC6434 to deal with 8200-style h… Mikael Abrahamsson
- Re: Updating to RFC6434 to deal with 8200-style h… Fred Baker
- Re: Updating to RFC6434 to deal with 8200-style h… Brian E Carpenter
- Re: Updating to RFC6434 to deal with 8200-style h… Brian E Carpenter
- Re: Updating to RFC6434 to deal with 8200-style h… C. M. Heard
- Re: Updating to RFC6434 to deal with 8200-style h… C. M. Heard
- Re: Updating to RFC6434 to deal with 8200-style h… Brian E Carpenter
- Re: Updating to RFC6434 to deal with 8200-style h… Michael Richardson
- Re: Updating to RFC6434 to deal with 8200-style h… Michael Richardson
- Re: Updating to RFC6434 to deal with 8200-style h… Tim Chown
- Re: Updating to RFC6434 to deal with 8200-style h… Ole Troan
- Re: Updating to RFC6434 to deal with 8200-style h… Tim Chown
- Re: Updating to RFC6434 to deal with 8200-style h… Fernando Gont
- Re: Updating to RFC6434 to deal with 8200-style h… Tom Herbert
- Re: Updating to RFC6434 to deal with 8200-style h… Fernando Gont
- Re: Updating to RFC6434 to deal with 8200-style h… Fernando Gont
- Re: Updating to RFC6434 to deal with 8200-style h… Fernando Gont
- Re: Updating to RFC6434 to deal with 8200-style h… Fernando Gont
- RE: Updating to RFC6434 to deal with 8200-style h… Manfredi, Albert E
- Re: Updating to RFC6434 to deal with 8200-style h… Fernando Gont
- Re: Updating to RFC6434 to deal with 8200-style h… Tom Herbert
- Re: Updating to RFC6434 to deal with 8200-style h… Brian E Carpenter
- Re: Updating to RFC6434 to deal with 8200-style h… Fernando Gont
- Re: Updating to RFC6434 to deal with 8200-style h… Tim Chown
- Re: Updating to RFC6434 to deal with 8200-style h… Brian E Carpenter
- Re: Updating to RFC6434 to deal with 8200-style h… Fernando Gont
- Re: Updating to RFC6434 to deal with 8200-style h… Michael Richardson
- Re: Updating to RFC6434 to deal with 8200-style h… Brian E Carpenter
- Re: Updating to RFC6434 to deal with 8200-style h… Bob Hinden
- Re: Updating to RFC6434 to deal with 8200-style h… Fernando Gont
- Re: Updating to RFC6434 to deal with 8200-style h… Brian E Carpenter
- Re: Updating to RFC6434 to deal with 8200-style h… Fernando Gont
- Re: Updating to RFC6434 to deal with 8200-style h… Tim Chown
- Re: Updating to RFC6434 to deal with 8200-style h… C. M. Heard