Re: [IPsec] [I2nsf] Review of draft-ietf-i2nsf-sdn-ipsec-flow-protection-03

Paul Wouters <paul@nohats.ca> Wed, 21 November 2018 05:01 UTC

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From: Paul Wouters <paul@nohats.ca>
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Date: Wed, 21 Nov 2018 12:01:36 +0700
Cc: i2nsf@ietf.org, "ipsec@ietf.org WG" <ipsec@ietf.org>, Rafa Marin Lopez <rafa@um.es>
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To: Yoav Nir <ynir.ietf@gmail.com>
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Subject: Re: [IPsec] [I2nsf] Review of draft-ietf-i2nsf-sdn-ipsec-flow-protection-03
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> On Nov 21, 2018, at 00:54, Yoav Nir <ynir.ietf@gmail.com>; wrote:
> 
> Still, as long as AES-CBC and HMAC-SHA1 are in, even that 10-year-old Linux can work, which is why I agree with your conclusion, except for the tweak that MUST- is also OK.

Okay, if one of the expected deployments is 10 year old ikev2 code, then we should add AES-CBC. I don’t know of any ikev2 code not supporting SHA2, so I would still suggest to leave SHA1 behind.

Paul