[SQU] Transparent proxying with spoof'd outbound packets from cache

It would be possible to improve on the transparent proxying idea by spoofing
the source address on all outbound packets from the proxy. This way the
_real_ www server will see the user's _real_ ip as it is presented to the
cache.

This would of course be optional and only available on certain platforms,
but it would be an awsome feature for those that want to do "transparent"
caching in an ISP environment... It would be a limiting factor only when
the upstream provider is presented with a non-valid IP, so the option must
be disabled in environments where there is only one real Internet IP
address, because we don't want a spoofed "10.x.x.x" packet escaping the
local network.

Has anyone heard of anybody doing such a thing already?

--
Ben Efros
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