[quicwg/base-drafts] Packets that shouldn't generate Version Negotiation (#497)

Martin Thomson <notifications@github.com> Thu, 04 May 2017 02:51 UTC

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From: Martin Thomson <notifications@github.com>
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Subject: [quicwg/base-drafts] Packets that shouldn't generate Version Negotiation (#497)
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There are a bunch of things that might arrive at a server that aren't QUIC.  Not all of these need to generate a Version Negotiation packet in response.

We should insist that short-form packets are ignored.

We might also insist that a packet that isn't obvious an initial handshake packet be dropped.  That means that it needs to be at least 1232/1252 octets long.

These both might happen if routing is bad, if connection migration happens (and the client isn't using connection ID properly) or the server receives internet-chaff.  Better to ignore chaff than to waste effort on it.

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