Public vs Private IP Address

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Public and private IP addresses are essential for internet access, with public IPs being unique and registered on the internet, while private IPs are used internally and assigned by routers through Network Address Translation (NAT), with three classes (A, B, C) each commonly starting with 192.168.

Insights

  • Public IP addresses are unique identifiers necessary for internet access, while private IP addresses are used internally within a network and assigned by routers.
  • Network Address Translation (NAT) plays a crucial role in converting private IP addresses to public IPs, enabling devices with private IPs to access the internet through a router.

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Recent questions

  • What are IP addresses?

    Numeric identifiers for devices on a network.

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Summary

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Understanding Public and Private IP Addresses

  • IP addresses are numeric identifiers for devices on a network, with two types: public and private.
  • Public IP addresses are registered on the internet, unique, and necessary for internet access.
  • Private IP addresses are not registered on the internet, used internally, and assigned by routers.
  • Network Address Translation (NAT) in routers converts private IPs to public IPs for internet access.
  • Private IP addresses have three classes (A, B, C) with different ranges, commonly starting with 192.168.
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