Real ip address for each computer?

[paulcheung]

HI, all,
I would like to know how is the IP addres works? Almost every one has a wireless router at their home, and the Ip address we most see is the router addresses, for example 192.168.??.??. that is within the network. is each computer in the network has an unique ip address? or is only the modem that has one unique address to the outside internet world?
The reason I ask is that my son got some survillan cameras, he try to learn how to install them, He can see them in the computers at home, but can't see them when he is out at his friend.
I know survillan cameras should use static ip addresses but he doesn't have that at home. so Is there a way to go around that so he can see them outside the house(network)?
Thank you.
Paul

 

[bigrich0086]

Only the ISP modem has the Unique IP address. You how ever can PAY them for static IP address with extra modems.

Routers main reason/purpose is to take that modems IP and replicated it so more computers can share the internet. Thus giving you the 192.168.x.x IPs.

Depending on the cameras you need to use the included software to setup a Port/server to watch from other computers via IP address.

 

[paulcheung]

Thanks

Thanks
Paul

 

[Method9]

Now as a disclaimer, I'm only a couple of classes deep into networking. Maybe I can help clear it up though. The only thing unique to the computer (the network card really) is the MAC address.

That 192.168.1.1 or whatever address is a private network address. There are thousands of the same addresses all over the world. Because it is private, it is not routable so you would not be able to access from the Internet by just typing in the IP address, since that computer would have no idea which 192.168.1.1 IP address to attempt to go to.

I have not yet done this before, but I believe the answer to your question involves setting up port forwarding on your router to permit an outside computer to access the cameras on your private network.

Trying searching the Internet or youtube for "surveillance camera port forwarding"

 

[DETNSWDER]

yeah that gets me... work is 192.168.1.10 (rx) and home is 192.168.0.6 so i assumed it was the same server... i was weally wrong.

 

[Jackster22]

Ill try to share about of light on this,,,,

Your internal IP is 192.168.*.*

The "192.168" is set so you can't change it but the end numbers you can.

In businesses their is usually more than 90 or so PCs or MACs.

For for easy asses to them and the fact that you would need one big router or loads of littles ones ( loads being the most common)..

You organise the router to push either a internal ip of 192.168.1.** , 192.168.2.** etc etc....

I can make i diagram if you would like.



Jack,