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Is it possible to deploy NAT protocol between two addresses, one ip network card (so that between them there was no conflict)? This is to ensure that one ip address to the Internet through a proxy parent, and the second address to the child proxy server and distribute it to the Internet in the local area network. Can this be done in principle?

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Yes. This is called "NAT on a stick".

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So if I need to organize the NAT on a stick on a conventional computer network card (not a router) to enable it to stage a proxy? – LaskoviyMay Jun 24 '12 at 8:52
I can't figure out what you're asking. NAT and proxying are generally considered different concepts (though NAT could be regarded as a form of proxying, it usually isn't). – David Schwartz Jun 24 '12 at 8:54
I wrote the above, the NAT between the two ip addresses to the same network card to a single address to the Internet through a proxy, but in a different address to put another proxy server, is a subsidiary to a subsidiary of the proxy to distribute online. – LaskoviyMay Jun 24 '12 at 9:26

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