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Re: [Int-area] draft-learmonth-intarea-rfc1226-bis-00

Erik Kline <ek.ietf@gmail.com> Sat, 23 May 2020 22:35 UTC

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From: Erik Kline <ek.ietf@gmail.com>
Date: Sat, 23 May 2020 15:35:00 -0700
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To: "Iain R. Learmonth" <irl@hambsd.org>
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Subject: Re: [Int-area] draft-learmonth-intarea-rfc1226-bis-00
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On Sat, May 23, 2020 at 2:24 PM Erik Kline <ek.ietf@gmail.com> wrote:
>
> Iain,
>
> Overall, LGTM.
>
> Questions and notes:
>
> [ section 3.2 ]
>
> * Does "IPENC" need to be officially recorded in an official registry
> somewhere?  Or has this already been done and a link to it can be
> included in this draft?
>
> I wasn't able to find this word in the APRS PDF linked to in the references.

Ah, I think I see now that section 17 of that PDF refers to these as
"dummy callsigns".  It mentions "TCPIP", but there doesn't seem to be
any text significantly constraining these dummy callsigns.

So, I guess: don't mind me!

> [ section 5 ]
>
> * Can you explain more about the limitations on non-NULL encryption?
>
> My intuition would be that ESP with non-NULL encryption provides
> privacy only on the IP links between tunnel endpoints.  A packet that
> failed to decrypt properly would not be transmitted over the amateur
> radio link, but rather be dropped by the IP endpoint (and possibly
> logged).  I don't think I follow what the intent of this section is.
>
> * I cannot find the phrase "dead peer detection" in RFC 7926, nor is
> that the IKEv2 RFC.  I think perhaps you meant RFC 7296 (numeric
> transposition).

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