IP over IP: moving host
We have some administrative [accounting] applications that can be
called only by a certain user, with a certain machine, and a certain IP.
For user identification [password] and machine id [a portable] there are
no problems ... (the portable has an OS that does not allow ipsec)
We wish the user can move on other sites. Of couse if he move away
and connect from another network the ip would change.
If he uses a dialin connection via PPP it is all ok, since he can use a
dialin access in his office, that connect to a server that assign him the
"right number" (of course it is free, since the machine is away) based on
his userid, so from home he get the same address that in the office.
But if he move to another office, on a different network, and
cannot/don't want to connect via dialup ?
I thought of setting in that remote site an old machine (I have tens of 8
MB ram 486/P120) , just with the duty to act a gateway having on the
eth two address , the one of the gateway of the home network, and
another of the real address of the real network [they cannot overlap
since are both publics, but one could also use a different NIC] . This
host should send trought a tunnel to a machine in home network that
would reinject to the router as if came from there. (or i could assign to
the nmoved machine a private address, and tunnel to home network
where traffic would be shown as local with home address)
How to do ?
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