If your laptop connects directly from a modem with an ethernet cable, would a router change your ip address?
If your laptop connects directly from a modem with an ethernet cable, would adding in a router, and connecting the computer through the router instead of the modem change your ip address?
Also, if you have two separate computers both connected to the same router, are their public ip addreses different? and if so, would one possible way to change your ip address be to just get a separate computer connected to the same router?
Public Comments
1. When you add a router to the mix you have two different ip addresses. You have your external IP address that the router has to through the cable modem to the outside world, and you have your internal IP address of the laptop that connects to the router.
Your laptop's IP address will absolutely change. Adding a router MIGHT change the external ip address.
2. If you connect your computer direct to your modem then it means that you do not use router.
If you connect your computer to your modem via router then you will have internal or LAN IP address that is needed inside your network for communicating with other computer in your network and you will have external or WAN IP address assigned to your computer from your ISP.
Your WAN IP address (you call it public IP address)will be always same. No matter of you use router or not. You can have 2 different IP address on your computer only if you assign extra account by your ISP what will cost you more money.
You can always for any tracking issue use free IP trackers:
http://www.ip-address.org
http://www.ipaddresslocation.org
http://www.find-ip-address.org
Hope this helps!