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Re: [quicwg/base-drafts] IP Anycast with server IP+Port renegotiation (#560)

Christian Huitema <notifications@github.com> Mon, 14 August 2017 05:42 UTC

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Date: Mon, 14 Aug 2017 05:42:05 +0000
From: Christian Huitema <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] IP Anycast with server IP+Port renegotiation (#560)
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The anycast support is simpler than general server mobility.  Server only need to send the non-unicast address once. They could send the preferred IP address & port as part of the transport parameter TLS extension, probably together with a new connection ID.

I would also like to see a possibility to MIGRATE later in the connection, but that's a different issue.

I agree that this looks a bit like #161, but on the other hand, server initiated DOS is a much less acute problem that client initiated DOS. Currently, a server can easily send the client a script that will trick the client into bombing random locations -- I think the great cannon worked just like that. The general defense is to identify the server...

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