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#1 User is offline   extremepilot 

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Posted 10 November 2006 - 03:53 PM

When several computers share an internet connection, in this case there is a network of computers connected using a wireless router, share an internet connection, do they all have the same external IP?

And what's the correct term for the computer that is physically connected to the modem? A Gateway?


#2 User is offline   gamehead200 

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Posted 10 November 2006 - 04:11 PM

View Postextremepilot, on Nov 10 2006, 05:53 PM, said:

When several computers share an internet connection, in this case there is a network of computers connected using a wireless router, share an internet connection, do they all have the same external IP?

And what's the correct term for the computer that is physically connected to the modem? A Gateway?


Yes and yes.

However, a gateway is a computer (or router) that other computers connect to in order to access the Internet.

#3 User is offline   hazard_abio 

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Posted 10 November 2006 - 04:17 PM

View Postgamehead200, on Nov 10 2006, 06:11 PM, said:

View Postextremepilot, on Nov 10 2006, 05:53 PM, said:

When several computers share an internet connection, in this case there is a network of computers connected using a wireless router, share an internet connection, do they all have the same external IP?

And what's the correct term for the computer that is physically connected to the modem? A Gateway?


Yes and yes.

However, a gateway is a computer (or router) that other computers connect to in order to access the Internet.


and to Complicate this a little more, the protocol that the Gateways/Routers normally use because it's probably the easiest to setup (espically the non managed variety of Routers) is NAT (Network Address Translation).

#4 User is offline   cluberti 

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Posted 12 November 2006 - 10:34 PM

To confuse you even more, the type of NAT most home routers use is SNAT, or Source Network Address Translation, allowing multiple private machines to use a public IP address. When you publish a service on an internal private machine to the web (or create a one-to-one NAT for a specific private machine), you're doing what's called a DNAT, or Direct Network Address Translation.

Fun, eh? Probably not useful to you, but it might be someday :).

#5 User is offline   nitroshift 

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Posted 13 November 2006 - 08:40 AM

View Postcluberti, on Nov 13 2006, 04:34 AM, said:

To confuse you even more, the type of NAT most home routers use is SNAT, or Source Network Address Translation, allowing multiple private machines to use a public IP address. When you publish a service on an internal private machine to the web (or create a one-to-one NAT for a specific private machine), you're doing what's called a DNAT, or Direct Network Address Translation.

Fun, eh? Probably not useful to you, but it might be someday :).

I bet you left him / her more confused now :lol:

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