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Subnetting Guides This step-by-step guide answers most subnetting questions (MCP/MCSE/Cisco courses) and explains the basics on what is an octet, how does subnetting work or how a subnet mask is constructed, ANDing, CIDR and other methods of calculating a subnet mask without one of our online subnet calculator tools. It's easy to follow and very straightforward. Step 1: Binary IP calculation Step 2: The IP Classes Step 3: Subnet Masking Step 4: Subnetting Backwards Step 5: CIDR addressing scheme And if you have a need for a reference afterwards: -Subnet and IP Cheat Sheet -IPv6 Cheat Sheet by estiole.com Ads by Google Wall-Size Posters - Security Exploit Poster The most complete view of security exploits and vulnerabilities (by Tripwire).(PDF) - OSI Layers Model Poster A great overview of the OSI model layers for different protocols.(PDF) - Protocols layer Poster #1 Another great poster that shows the different protocols per OSI layer.(PDF) - Protocols layer Poster #2 This yet another great poster that shows the different protocols per OSI layer. Includes IPv6.(PDF) - Protocol Encapsulation Poster Shows how encapsulation is set up, shown per protocol.(PDF) OSI and Protocols - Denial Of Service A very detailed document on DDOS or denial of service attacks.(PDF) - Introduction to OSI Layers An easy to read and extensive view on the OSI model and all layers.(PDF) - The most common Request For Comment (RFC's) A collection of the most popular RFC's in ASCII format with short description. - List of Known Port Numbers A list of all known port numbers with a short descriptions. |
We currently have 12 different kinds of network, subnet and CIDR calculators online, with each it's own purpose and look. No doubt that you will find one online subnet calculator that fits your taste or purpose. IP subnet calculator and converter for IPv4 and IPng/IPv6. IPv4 to IPv6 Calculator / Converter Simple converter to determine the IPv6 notation for a IPv4 IP number. Convert IP to Bin to Dec calculator A great, yet simple calculator. It is almost self-explaining using several steps to convert any IP to a Dec value. HEX to BIN to DEC to etc.. calculator Binary, Ternary, Quintal, Octal, Decimal and Hexadecimal calculator in one. No more breaking your brain over these calculations. BIN to DEC converter A simple Binary to Decimal converter. also a great tool for dec to bin octet conversion pratice! BIN to DEC to HEX converter Advanced Binary to Decimal to Hexadecimal converter and back. This tool converts up to 16 bits binary (215) to decimal and hexadecimal Online HTTP Header and Source Query HTTP Header is and online tool to display the HTTP Header and source code of a Web (HTTP) Page. Online Trace Route Query Which route does a packet follow to reach it's destination? Use this tool for a detailed report. A TracePath alternative is available here. Click here... for more online network tools. |
Link to this site  Subscribe (beta)What is my IP address? This is your external (Internet) IP address! Search SubnetOnline.com or the Web! Search all RFC's Searching for the right RFC. Use our database search option to find the right RFC using number or keyword. Provided by RFC-Editor.Org Search the RFC database. Ads by Google Download Acrobat Reader Get the most recent version of Adobe AcroBat Reader here:  Site Change Log View the Change Log for recent changes to this Site, like additions to our subnet calculator and network tools sections! |
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