IP Address Allocation Hierarchy
IP addresses are assigned through a hierarchical system overseen by global organizations.
IANA (Internet Assigned Numbers Authority)
Manages the overall IP address space allocation globally.
Regional Internet Registries (RIRs)
Distribute addresses to ISPs within geographic regions.
ISP Assignment
ISPs assign addresses to customers from their allocated pool.
Dynamic vs Static IPs
Dynamic IP Addresses
- Assigned temporarily through DHCP
- Change when you reconnect to internet
- Most common for residential customers
- More affordable
Static IP Addresses
- Remain the same permanently
- Typically for businesses and servers
- More expensive
- Better for hosting and remote access
DHCP Protocol
Dynamic Host Configuration Protocol (DHCP) automates IP assignment with lease periods.
IPv4 vs IPv6 Assignment
IPv6 provides significantly more addresses, enabling better assignment practices.
Conclusion
Understanding ISP assignment helps you comprehend your IP's origin and stability.