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[IPv6]Re: RFC 4291 and Site-Local Addressing

Jeremy Duncan <jduncan@tachyondynamics.com> Thu, 31 October 2024 13:17 UTC

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From: Jeremy Duncan <jduncan@tachyondynamics.com>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>, Kyle Ouellette <kouellette@iol.unh.edu>
Thread-Topic: [IPv6]Re: RFC 4291 and Site-Local Addressing
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Date: Thu, 31 Oct 2024 13:17:13 +0000
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Subject: [IPv6]Re: RFC 4291 and Site-Local Addressing
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Brian, thanks. Since we're 20 years passed that, would it be worth an update to 4291? 

-Jeremy


-----Original Message-----
From: Brian E Carpenter <brian.e.carpenter@gmail.com> 
Sent: Wednesday, October 30, 2024 11:42 PM
To: Jeremy Duncan <jduncan@tachyondynamics.com>; Kyle Ouellette <kouellette@iol.unh.edu>
Cc: ipv6@ietf.org
Subject: Re: [IPv6]Re: RFC 4291 and Site-Local Addressing

[EXTERNAL] Verify links and attachments with sender.

I suspect that the original idea was that we didn't want to break any sites that happened to be using it despite the deprecation.

Regards
    Brian
On 31-Oct-24 10:05, Jeremy Duncan wrote:
> Kyle, thanks but Address Architecture test case 1.5 merely tests that site local is being used. So an echo request and reply using it as the source. The problem is that RFC 6724 has moved it down to precedence 1 with label 11. So in essence a node conforming to 6724 would label it as a site local and not a standard global unicast right?
>
>
>
> Semper Fi,
> Jeremy Duncan
> Sent from my cell
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
> *From:* Kyle Ouellette <kouellette@iol.unh.edu>
> *Sent:* Wednesday, October 30, 2024 4:49:09 PM
> *To:* Jeremy Duncan <jduncan@tachyondynamics.com>
> *Cc:* ipv6@ietf.org <ipv6@ietf.org>
> *Subject:* Re: [IPv6]RFC 4291 and Site-Local Addressing
>
> [EXTERNAL] Verify links and attachments with sender.
>
> Hi Jeremy,
>
> The IPv6 Ready Core tests you're referring to test that Site Local addresses are deprecated and not supported. Specifically this statement from 2.5.7: "The special behavior of this prefix defined in [RFC3513] must no longer be supported in new implementations (i.e., new implementations must treat this prefix as Global Unicast)."
>
> Thanks,
> Kyle
>
> On Wed, Oct 30, 2024 at 4:27 PM Jeremy Duncan <jduncan=40tachyondynamics.com@dmarc.ietf.org <mailto:40tachyondynamics.com@dmarc.ietf.org>> wrote:
>
>     Hello 6Man-____
>
>     __ __
>
>     Is there any reason that Site local addressing fec0::/10 is still included in RFC 4291? Since the deprecation was done back in RFC 3879 in 2004, it still remains in 4291. Which also means all of the IPv6 Ready conformance and interoperability testing still requires these test cases. ____
>
>     __ __
>
>     Is there any appetite to get a bis/update in place to do a removal of section 2.5.7 in RFC 4291?____
>
>     __ __
>
>     __ __
>
>     -Jeremy____
>
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> --
>
>
>       Kyle Ouellette
>
>       Software Development Manager, IP Technologies
>
>       UNH InterOperability Laboratory
>
>       21 Madbury Rd, Suite 100, Durham, NH 03824
>
>       kouellette@iol.unh.edu <mailto:kouellette@iol.unh.edu>
>
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>       <http://www.iol.unh.edu/>
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