(1) What is my and others real IP address on same lan? Can we still have a unique IP despite the fact that we share the same router/LAN? and how does the IPs are assigned?
Thanks!
If you use a router to access the internet you probably have a DHCP Server running on the router as well. This gives each computer a unique IP address wit a lease of x-days.
From the net only your public (mostly dynamic) ip address is shown to others.
Inside you private local net you have private ip addresses like 192.168.x.x/class C.
Easy way to find out your ip addess on your local computer: open a cmd shell and type "ipconfig /all". Then you see your IP address and also the gateway (which is your router).