Re: Known Problems - Transparent Proxies and new HTTP Methods

From: Patrick McManus (mcmanus@appliedtheory.com)
Date: Tue Aug 03 1999 - 15:51:40 MDT


a network transparent proxy that does not tunnel has created a defacto
firewall.. whereas with a normal proxy that does not tunnel the client
may choose to re-issue the request bypassing the proxy.

Tunnelling is certainly not required.. as such it's an architectural
issue.

but, tunneling should definitely be added to the workarounds.. that's
a big over-sight.. Though you've got to admit its farcical to be
'network transparently tunneling' traffic that was never addressed to
you in the first place.

-P

In a previous episode Henrik Nordstrom said...
::
:: Note: This is more of an implementation issue than a protocol issue, and
:: in part applies to normal proxies as well.
::
:: HTTP/1.1 specification allows a proxy to switch over to tunnel mode when
:: it receives a request with a method or HTTP version it does not
:: understand how to handle.
::
:: --
:: Henrik Nordstrom
::
::
:: Patrick McManus wrote:
:: >
:: > Name:
:: > Network Transparent Proxies Prevent Introduction of New HTTP Methods
::



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