Subnet Addressing
- Very clear explanation on the issue of IP addressing and subnetting
- http://www.networkcomputing.com/unixworld/tutorial/001.html

IP Addressing for Internet Data Centers
- Intel document describing IP Addressing concerns for the implementation of public Internet data centers including future trends.
- http://download.intel.com/technology/itj/q42000/pdf/ipaddress.pdf

IP subnetting exerciser hosted at www.brouckie.be
- This page dynamically generates and checks variations on the most forms of questions concerning IP subnetting during assesments.
- http://www.brouckie.be/cgi-bin/IPsubnetting/index.pl

Network Calculators
- A subnet mask and network/node calculator including IP address and mask conversion.
- http://www.subnetmask.info

Subnet Online Network Resources
- Provides subnetting tutorials, calculators and other tools.
- http://www.subnetonline.com/

Online IP Subnet Calculator
- Online IP subnet, CIDR/VLSM/supernet and wildcard mask calculators.
- http://www.subnet-calculator.com/

Internet Protocol Addressing and the Domain Name System
- Detailed tutorial covering IP address and CIDR allocation, name resolution, and DNS. Includes examples, tools, and references.
- http://www.samspade.org/d/ipdns.html

IP Address Subnetting Tutorial
- A technical introduction to IP addressing and address subnetting in an easy-to-understand tutorial format.
- http://www.ralphb.net/IPSubnet/

IP-Address Management on LANs
- Byte Magazine article covering issues related to IP address management
- http://www.byte.com/art/9602/sec16/art4.htm

IP 101: All About IP Addresses
- NetworkComputing tutorial on IP Addresses
- http://www.networkcomputing.com/netdesign/ip101.html

IP Addresses
- A Cisco document explaining what IP addresses are. [HTML/PDF]
- http://www.cisco.com/univercd/cc/td/doc/product/atm/l2020/2020r21x/planning/appndxa.htm#xtocid87490