IP translation

[tony.chamberlain at lemko.com]

I need a MAGIC BOX to do this




------ IP ADD 1, PORT 1 ----> MAGIC BOX -----> IP ADD 2, PORT 2
(eg convert something like 192.168.5.191/3660 to something like 192.168.5.100/222
but this is just an example). 

Can anyone suggest anything? Preferably with a router (we have Linksys BEFSX41)
or with CentOS 4.5 (would have to be on the outgoing side).

What it actually will be used for is to run 100 or so instances of mysql on the same
machine but on different ports. Then each instance of mysql will have its onw logical
IP address.

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