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How does ISP assign IP address?
Your IP address is assigned to your device by your ISP. Your internet activity goes through the ISP, and they route it back to you, using your IP address. Since they are giving you access to the internet, it is their role to assign an IP address to your device.
Who distributes IP addresses?
Internet Assigned Numbers Authority (IANA)
IP addresses are distributed in a hierarchical system. As the operator of Internet Assigned Numbers Authority (IANA) functions, ICANN allocates IP address blocks to the five Regional Internet Registries (RIRs) around the world. (The “regions” of the Regional Internet Registries are roughly continental in size.)
What entity assigns an IP address?
The Internet Assigned Numbers Authority (IANA) is a standards organization that oversees global IP address allocation, autonomous system number allocation, root zone management in the Domain Name System (DNS), media types, and other Internet Protocol-related symbols and Internet numbers.
Who assigns IP to countries?
the Internet Assigned Numbers Authority
There are 232 (over four billion) IP addresses in the IPv4 protocol. Of these, almost 600 million are reserved and cannot be used for public routing. The rest are allocated to countries by the Internet Assigned Numbers Authority (IANA) via the regional Internet registries (RIRs).
How does an ISP assign IP addresses to home users?
So, your IP address may be out of RFC 1918 space and thus not usable externally. ISPs seem very loathe to assign a static IP address. If nothing else, they charge more for them. However, they don’t seem to commonly let addresses float either.
What is the path of an ISP router?
That path is the gateway address, the address of the ISP’s router that connects any of your devices to the outside world. When you assign one of those IPs to your device, the path to/from the other networks of the world is the gateway. Every device in that address range will use that gateway to communicate.
Can a ISP lease an IP address for a server?
If your ISP issues public IP addresses, then it must have enough public IP address space to allocate to all of the users. However, it may not be feasible to use this for a server. The IP lease time is made shorter so that your modem or router is forced to request for a new one.
Why is it important to know the path of an IP?
This is important because whenever anyone wants to reach that IP, the ISP provides the path. That path is the gateway address, the address of the ISP’s router that connects any of your devices to the outside world. When you assign one of those IPs to your device, the path to/from the other networks of the world is the gateway.