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Re: [quicwg/base-drafts] TP to disable migration (#1447)

Kazuho Oku <notifications@github.com> Fri, 15 June 2018 05:52 UTC

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Subject: Re: [quicwg/base-drafts] TP to disable migration (#1447)
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kazuho commented on this pull request.



> @@ -1289,6 +1290,13 @@ preferred_address (0x0004):
 : The server's Preferred Address is used to effect a change in server address at
   the end of the handshake, as described in {{preferred-address}}.
 
+disable_migration (0x0009):
+
+: The server does not support migration of connections to a different IP
+  address. Clients MUST NOT send any packets, including probing packets, from an
+  IP address other than that used to perform the handshake.  This parameter

My understanding is that one of the motives of having this option is to allow running QUIC servers behind a load balancer that distributes the load based on the 5-tuple.

Assuming that is true, it is necessary to minimize the chance of client rebinding to not only a different IP address but to a different port as well.

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