by Barry Dysert
(last updated March 15, 2021)
An IP (Internet Protocol) address is required for every device connected to an IP-governed network. IP addresses are part of the "conversation" that occurs between clients and servers over DHCP. (See the tip titled Understanding DHCP for more information.)
There are two types of IP addresses: IPv4, which uses 32-bit numbers to store the address, and IPv6, which uses 128-bit numbers to store the address. IPv6 was established because it was predicted in the 1990's that all 32-bit addresses would soon be spoken for.
An IPv4 address is a sequence of four groups of numbers separated by periods (called the dot-decimal notation). For example, the "google.com" domain uses (among others) an IPv4 address of 126.96.36.199. Behind each of the four groups of an IPv4 address is an eight-bit number, so each group can range from 0 to 255. This implies that a little over four billion unique addresses (256 x 256 x 256 x 256) can be represented by an IPv4 address. Because of the IPv4 specification and reserved addresses, though, not all potential addresses are actually available.
An IPv6 address is a sequence of eight groups of numbers separated by colons. Behind each of the eight groups is a 16-bit number, so each group can range from 0 to FFFF (hex). Hex numbers can appear as part of an IPv6 address, so a theoretical IPv6 address may look something like this: 2002:0715:44D5:C4AE:2910:0AE7:D29F:948D.
This tip (13104) applies to Windows 7, 8, and 10.
Using the cloud to store and transfer files is more common today than at any other time. With OneDrive and Windows 10 you ...Discover More
When using Microsoft Edge, focus on the reading of a webpage with Reader View. Reader View turns off the distractions of ...Discover More
Your DNS server is usually set by your Internet provider. You can change the default DNS to another server easily in ...Discover More
FREE SERVICE: Get tips like this every week in WindowsTips, a free productivity newsletter. Enter your address and click "Subscribe."