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Re: [Int-area] WGLC on draft-ietf-intarea-frag-fragile-05 (Tom Herbert)

Joe Touch <touch@strayalpha.com> Thu, 17 January 2019 06:22 UTC

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To: Tom Herbert <tom@herbertland.com>, Ronald Bonica <rbonica@juniper.net>
Cc: int-area <int-area@ietf.org>
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From: Joe Touch <touch@strayalpha.com>
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Date: Wed, 16 Jan 2019 22:22:42 -0800
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Subject: Re: [Int-area] WGLC on draft-ietf-intarea-frag-fragile-05 (Tom Herbert)
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FWIW...

On 1/16/2019 11:26 AM, Tom Herbert wrote:
> ...A stateless firewall could just drop the first fragment that
> contains the transport layer header and allow non first fragments to
> past. This achieves the filtering goal to prevent delivery of the
> reassmbled packet.

That works only if the firewall drop rules are based on information
available in the first fragment. The D in DPI often goes much further.

Joe

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