[gentoo-user] Proxy questions

I know, in general, what proxies do -- caching, filtering, and
bypassing firewalls.  I have even written a couple of very special
purpose proxies.  Now I need one for work, and don't realy want to
write another custom special purpose when it seems there must be a
canned one which can do the job.

We have some vendors who transact business over special ports with
custom protocols.  We pay for these connections, and we only have two
of them, good enough for QA, but when a developer needs to test code,
they have to drag their machine over to QA and schedule time with one
of these connections.  What we need is a proxy which can take any
number of connections on our side and funnel everything into one or
two vendor connections.  I don't know enough of the proxy jargon to
know how to describe it.  I imagine some kind of NAT.  No filtering or
caching; firewall penetration will be taken care of elsewhere.

Any suggestions, or proxy education hints?

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