Re: Members/Site Access

[Bill Woodcock <woody@pch.net>]

    > I have looked at the slides from PCH and a few web resources but I must
    > admit there are a few issues that are not clear to me. In cases where the
    > web hosting is done at a site say in the US whereby one has no access to
    > the server's configuration, is anycast still an alternative? Are the
    > routing issues so trivial that  remote website hosts will be willing to
    > delve into the configurations?

Two different ways to do anycast:

You can control all the instances yourself, and set up the routing for
them all, and advertise thw whole supernet that the server is in via BGP
at both locations from the same ASN.  That's the good way.

The bad way is to just hijack somebody else's address, by advertising your
own /32 instance of it locally.  The problem with doing that is that you
don't know what else might be using that same IP address via http 1.1
domain-name-based virtual hosting.

                                -Bill



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