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Re: [Hipsec] Magnus Westerlund's Discuss on draft-ietf-hip-native-nat-traversal-30: (with DISCUSS and COMMENT)

Jeff Ahrenholz <j.ahrenholz@Tempered.io> Sat, 04 April 2020 22:04 UTC

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From: Jeff Ahrenholz <j.ahrenholz@Tempered.io>
To: Magnus Westerlund <magnus.westerlund=40ericsson.com@dmarc.ietf.org>, "iesg@ietf.org" <iesg@ietf.org>, Miika Komu <miika.komu@ericsson.com>
CC: "hipsec@ietf.org" <hipsec@ietf.org>, "hip-chairs@ietf.org" <hip-chairs@ietf.org>, Gonzalo Camarillo <gonzalo.camarillo@ericsson.com>, "draft-ietf-hip-native-nat-traversal@ietf.org" <draft-ietf-hip-native-nat-traversal@ietf.org>
Thread-Topic: [Hipsec] Magnus Westerlund's Discuss on draft-ietf-hip-native-nat-traversal-30: (with DISCUSS and COMMENT)
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Date: Sat, 04 Apr 2020 22:04:51 +0000
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Subject: Re: [Hipsec] Magnus Westerlund's Discuss on draft-ietf-hip-native-nat-traversal-30: (with DISCUSS and COMMENT)
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>   Has anyone looked at implementing 
>   https://datatracker.ietf.org/doc/draft-ietf-tsvwg-datagram-plpmtud/ (document is
>   in IESG evaluation) style path MTU discovery between the HIP client and the
>   relay? Becasue I think that would be the best to actually run a HIP level path
>   MTU discovery, so that the HIP client can set its MTU to path minus overhead and
>   including any for occasional messages that are required to be included when
>   carrying useful payload. If HIP has a padding option, then I would expect that
>   HIP has everything necessary to implement working probe messages that can used
>   by the above draft. 

Thanks for the pointer to this draft. We haven't looked into it yet but this may be a good solution for our HIP deployments. (We're always doing HIP-over-UDP and often using relaying.)

-Jeff

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