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Resetting a router is a common way for individuals to obtain a new public IP address from their Internet Service Provider (ISP). Here's how it typically works:

1. Internal Network: The DHCP server on the router assigns internal or private IP addresses to devices within the local network. These addresses are used for communication within the home or office.

2. Public IP Address: The router, which is connected to the ISP, is assigned a public IP address. This public IP address is what the ISP uses to identify the router on the internet.

3. Router Reset: When a router is reset, it initiates a new connection with the ISP. The ISP, in response, may assign a new public IP address to the router. This is often done dynamically, and the process is part of the DHCP (Dynamic Host Configuration Protocol) negotiation between the router and the ISP.

4. New Public IP: After the reset, the router now has a new public IP address. This change affects the entire local network since all the internal devices share the public IP assigned to the router when accessing the internet.

It's important to note that not all ISPs dynamically assign public IP addresses on each reset, and the specific behavior can depend on the ISP's policies and the type of connection (dynamic or static IP). Additionally, some ISPs might have a lease time for IP addresses, and the address may change periodically even without a router reset.


~Written by ChatGPT.