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Is it possible to hide a LAN from your ISP?

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Well, this might not be exactly a programming question but I don't know where to ask. Is it possible to hide your LAN from your Broadband ISP completely? I don't want that he detects that I want to connect my LAN to the Cable Modem (with a 3Com router). If necessary I can install a proxy, etc. at the same time I'd like that my web services are reachable from internet (if possible).

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Quote:
Original post by NamelessTwo
Well, this might not be exactly a programming question but I don't know where to ask.

Is it possible to hide your LAN from your Broadband ISP completely? I don't want that he detects that I want to connect my LAN to the Cable Modem (with a 3Com router). If necessary I can install a proxy, etc. at the same time I'd like that my web services are reachable from internet (if possible).


They'll probably not see it the way it is now, with the router.

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yah, i'm no expert but i believe that is the whole point of routers. the rest of the internet doesn't know if the IP you use (which is assigned by your ISP) connects to a PC or a LAN, they just know that when you send them data from it they can send it back there.

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Yes.

Get yourself a NAT router, such as one of the many linksys, dlink, or netgear broadband routers. Make sure that it supports port forwarding and mac address cloning. That should get you by.

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He may be wary because of research papers like this one, which provide heuristics for determining the number of computers actually being used behind a NAT gateway. Of course, there's no way for them to prove that you have those computers behind there, but they can have a pretty good guess. Last I recall, Comcast was starting to do something like this, but I'm not aware of any others, and Comcast may have given it up now as well. Most ISPs are fairly NAT friendly now days, it seems.

-bodisiw

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