Home > Computers > Internet > Protocols > IP > Addressing
http://www.ipprimer.com/
LAN Administrator's Guide to TCP/IP and routing for Internet-connected LANs.
http://www.drizwork.com/
Provides a complete listing of all routable IPv4 IP addresses, geolocation information as well as registration information.
http://www.ralphb.net/IPSubnet/
A technical introduction to IP addressing and address subnetting in an easy-to-understand tutorial format.
http://www.cisco.com/univercd/cc/td/doc/product/atm/l2020/2020r21x/planning/appndxa.htm#xtocid87490
A Cisco document explaining what IP addresses are. [HTML/PDF]
http://www.ipchalk.com/
IP exercises to practise all kinds of IP notations, calculations and subnetting challenges.
http://www.brouckie.be/cgi-bin/IPsubnetting/index.pl?ta=1
This site automatically generates and reviews an endless list of exercises on IP subnetting, starting from different presets.
http://www.subnetmask.info/
A subnet mask and network/node calculator including IP address and mask conversion.
http://www.subnet-calculator.com/
Online IP subnet, CIDR/VLSM/supernet and wildcard mask calculators.
http://www.subnetonline.com/
Online IP subnet calculators, subnetting tutorials and online network tools for IPv4 and IPv6.
http://www.subnetting-secrets.com/
Teaches IT students and networking professionals how IP addressing works. Lessons include easy subnetting, subnet mask calculation, binary math and VLSM.
http://subnettingpractice.com/
Subnetting practice site. Practice and calculaters for IPv4, IPv6, VLSM, CIDR, Binary, Hex.
http://en.wikipedia.org/wiki/Subnetwork
A detailed article about subnetting from the free encyclopedia.
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