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Internet Networking Question?
I have a question...all systems in an internet cafe all have the same internet ip address(because of NAT or ICS or something)right?
lets say i want to telnet a particular system on the cafe, it doesnt work!!!
WHY and any solution??
what i really want to do is create a way of bypassing the internet filter at my workplace by using a system from any cyber cafe...any suggestions...can LogMeIn do it??
3 Answers
- 1 decade agoFavorite Answer
you wont be able to telnet into the pc, you may be able to install logmein and then remote into it that way, however the machine would need to have the ISP's address as the IP and not the masked IP address of (192.x.x.x or 10.x.x.x).
- 1 decade ago
Wrong. all the systems in an internet cafe do not have the same IP address. What NAT is doing is forwarding all traffic from behind the router locally (customers) to the ISP under the same IP address. When traffic comes back, the local router figures out what local IP it came from and gives it to that IP.
Most likely the local router is setup to avoid giving you just about any information about the local IPs that it's using as possible. Also, if you're attempting to find local IPs using some kind of look-back service on the internet (there's a lot of them if you google "find my IP") you will only get the one IP address the Router is using.
Finally, it's highly unlikely that you will be able to telnet to another system locally unless A) The telnet service is running on their computer B) the router allows telnet traffic C) the domain (if there is one) allows telnetting and/or D)You have telnet permissions to the computer you are trying to telnet to.
- ?Lv 41 decade ago
Wowsers... it sounds like you have absolutely no clue what you are doing...
Yes it is because of NAT... basically the router provides all of the invalid DHCP addresses, and they are all piped out of the internet connection over the IP address for the router...
You would need to setup port forwarding (point whatever port on the outside, to the inside IP), or VPN into the network, and know the IP of the machine you want to telnet to.... on top of that, what are you even going to telnet into??? I mean, I doubt a normal computer on the network has any type of server accepting telnet connections... unless its mail, cups, print, whatever... but I doubt they have that...
So yea, basically you need to put a map on the router telling what port is to go to what IP... otherwise the incoming connection has no route...
Good luck
