Working with IP Addresses and Subnets
IP addresses are the fundamental method for computers to identify themselves on the Internet and many other computer networks. Learn here how to set up and maintain IP addresses.
What Is an IP Address?
An IP address is a logical address of a network adapter. Home computers and many other devices acquire IP addresses to join Internet Protocol networks.
An IP address is a logical address of a network adapter. Home computers and many other devices acquire IP addresses to join Internet Protocol networks.
Guide to Working With IP Addresses
Learn the basics of finding, changing, and hiding my IP addresses.
Learn the basics of finding, changing, and hiding my IP addresses.
IP Tutorial - IP Address Notation
Learn how to recognize several different types of IP addresses, including private, reserved and invalid ones.
Learn how to recognize several different types of IP addresses, including private, reserved and invalid ones.
What Is an IP Address Conflict?
An IP address conflict occurs when two computers on a local network (or the Internet) have been assigned the same IP address. IP conflicts between two computers normally render either one or both of them unusable for network operations.
An IP address conflict occurs when two computers on a local network (or the Internet) have been assigned the same IP address. IP conflicts between two computers normally render either one or both of them unusable for network operations.
What is a Subnet?
A subnet is a logical grouping of connected network devices. When a subnet is properly implemented, both the performance and security of networks can be improved.
A subnet is a logical grouping of connected network devices. When a subnet is properly implemented, both the performance and security of networks can be improved.
IP Tutorial - Network Numbering
Network numbers look like IP addresses but function differently. Find out how IP networks get numbered and what purpose these numbers serve.
Network numbers look like IP addresses but function differently. Find out how IP networks get numbered and what purpose these numbers serve.
IP Tutorial - Subnetting
Subnets allow IP networks to be subdivided for security and performance purposes. This tutorial explains how subnetting works and provides examples of subnets in practice.
Subnets allow IP networks to be subdivided for security and performance purposes. This tutorial explains how subnetting works and provides examples of subnets in practice.
Private IP Addresses and Address Ranges
Using a private IP address on a residential or business computer can improve network security and conserve public addressing space. Learn how private IP addressing works and which IP address ranges qualify as private.
Using a private IP address on a residential or business computer can improve network security and conserve public addressing space. Learn how private IP addressing works and which IP address ranges qualify as private.
CIDR - Classless Inter-Domain Routing
CIDR - also called supernetting - is one system used by Internet routers to manage IP subnetworks. CIDR was developed in response to a shortage of IPv4 addresses.
CIDR - also called supernetting - is one system used by Internet routers to manage IP subnetworks. CIDR was developed in response to a shortage of IPv4 addresses.
127.0.0.1
127.0.0.1 is an reserved IPv4 address. 127.0.0.1 is a special purpose address conventionally used as a computer's loopback address.
127.0.0.1 is an reserved IPv4 address. 127.0.0.1 is a special purpose address conventionally used as a computer's loopback address.
What Is An Octet?
An octet in computer technology is an 8-bit quantity. Octets in networking are most commonly associated with a single byte of an IPv4 network address.
An octet in computer technology is an 8-bit quantity. Octets in networking are most commonly associated with a single byte of an IPv4 network address.
Search Engine IP Addresses
Use this simple database to identify the IP addresses of popular Internet search engines and search spiders. Webmasters use these addresses when analyzing their server logs.
Use this simple database to identify the IP addresses of popular Internet search engines and search spiders. Webmasters use these addresses when analyzing their server logs.