(SUBNETwork) A logical division of a local area network, which is created to improve performance and provide security. To enhance performance, subnets limit the number of nodes that compete for available bandwidth. Instead of one network handling all the traffic, the network is divided into groups of clients and servers that interact with each other most of the time. For security, the subnet divisions can be based on servers that have restricted applications. Routers are bridges are used to traverse network segments. In an IP network, the subnet is identified by a subnet mask (see subnet mask).
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2009 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- IP Address Menu 6.0 (Mac)
- You want to display your current IP address in the menu bar? You want to display your user name, your computer name, the IP address, the subnet mask and the MAC address of each of your network interface at the same time? You want your Mac to automatically send an...
- Software downloads 2009-11-09
- IPMaster 1.5 (Windows)
- IPMaster is IP address management software. It provides visual IP address assignment network topology tree, automatic subnet calculation, mask calculation, subnetting, network segment scanning, host monitoring, ping, traceroute, telnet, and netsend. It supports VLSM and CIDR. The purpose of this software is to assign and manage IP address efficiently for...
- Software downloads 2009-10-22
- NetSetMan 2.6.2 (Windows)
- NetSetMan is a network settings manager which can easily switch between 6 different profiles including IP address, subnet mask, default gateway, DNS server, Win server, computer name, printer, DNS domain, workgroup, and scripts. It also can get current settings and do a FastSwitch from the tray bar. With only two...
- Software downloads 2009-10-21
- IPNetMonitorX 2.5c4 (Mac)
- IPNetMonitorX is a network troubleshooting toolkit for debugging Internet service problems and optimizing performance. Featuring 20 integrated tools, IPNetMonitorX is designed to help you quickly locate where the problem is and gather data which can be used to solve the problem either directly or through your Internet Service Provider. The...
- Software downloads 2009-10-15
- IPGadget 1.7 (Mac)
- IPGadget is a small calculator for verifying IPv4 address information. Given an IP address and network prefix size, IPGadget will show you: The subnet mask corresponding with the prefix size (eg "/24" = "255.255.255.0") The network address (ie, where the bits of the host portion are...
- Software downloads 2009-09-26
- Newt Professional 2.5 build 144 (Windows)
- A network inventory & discovery tool providing fast and easy scanning of over 200 items from NT-based machines with no user-deployment time. Gathered information is displayed in an easy-to-read spreadsheet-like format. Features include discovery & scanning by domain, workgroup, IP range, or by using the built-in network browser featuring real-time...
- Software downloads 2009-09-20
- CiscoKits CCNA Subnet Calculator 1.0 (Windows)
- CiscoKits is pleased to offer to you completely free our own CCNA Subnet Calculator that you can download and use to help you prepare for your Cisco certification exams. Subnetting is one of the key concepts on the Cisco CCNA certification exam. So you need to know it inside and...
- Software downloads 2009-09-19
- IP Sniffer 1.98 (Windows)
- IP Sniffer is a suite of IP Tools built around a packet sniffer. The packet sniffer can work on all Windows versions using either: the new raw socket implementation of Windows2000 driverless, WinPcap needs to be installed, a NDIS protocol (needs to be installed , no reboot). IP sniffer is...
- Software downloads 2009-09-14
- NetPalpus 2.9 (Windows)
- NetPalpus is a powerful and easy-to-use network management tool, which can discover, organize and monitor all devices on your network. It can monitor the device status, as well as availability of specific services and alert you via sound or email when a device becomes unavailable. The network devices are automatically...
- Software downloads 2009-09-09
- Windows 7, Vista exposed to 'teardrop attack'
- Vulnerable by default?[i]Exploit code for a remote reboot flaw in Microsoft's implementation of the SMB2 protocol has been posted on the internet, exposing users of Windows 7 and Windows Vista to the teardrop attacks that used to be popular on Windows 3.1 and Windows 95.[/i]I presume this attack is able...
- Discussion threads 2009-09-08
- Microsoft lover Citrix as heroine of the open source cloud
- Nobody "walked" from VMworld - that's a mythNeither Citrix nor Microsoft "walked" from VMworld. Citrix is there exhibiting and drawing crowds that overwhelm the puny 10x10 booth to which VMware has restricted it, and despite not being allowed speaking slots on the main program, are speaking in Intel's and AMD's...
- Discussion threads 2009-09-01
- Subnetting Shortcuts
- One of the most challenging topics for many IT Professionals is subnet masking. This white paper will de-mystify the math behind subnetting, and provide examples of shortcuts that bypass the need for binary when doing calculations involving subnet masks.
- White papers 2009-08-21
- NetSetMan 2.6 (Windows)
- NetSetMan is a network settings manager which can easily switch between 6 different profiles including IP address, subnet mask, default gateway, DNS server, Win server, computer name, printer, DNS domain, workgroup, and scripts. It also can get current settings and do a FastSwitch from the tray bar. With only two...
- Software downloads 2009-08-19
- IP Shifter 2.3.6 (Windows)
- IP Shifter is a software tool that helps you to change your TCP/IP related settings easily and quickly. If you work dynamically at several locations in the network due to business, you need to be connected in different offices, or you need to use your computer in more than one...
- Software downloads 2009-07-18
- Pchsoft 1-Click IPConfig 1.50 (Windows)
- Are you a laptop user? Do you have multiple network adapters? Do you have multiple network connected simultaneously? Do you usually move from one network to another network? Then Pchsoft 1-Click IPConfig is the product for you. Whenever laptop user moves to different network, including laptop user has to change...
- Software downloads 2009-07-17
- Net Force (for the Pocket PC) v2.0ppc (Mobile)
- Net Force is a collection of tools used by Network Adminstrators to monitor and maintain networks. Net Force includes utilities like Port Scanner, CharGen, DNSLookup, Ping, IP Subnet Calculator, HTTP Fetch Quote of the Day Service and Daytime Service. The application also includes a TFTP Server and client as well...
- Software downloads 2009-07-11
- Pocket IP 1.02 (Mobile)
- is an IP calculator for Pocket PC. It performs complex bit mask operations, making tedious operations simple. Features include:Decimal/hex/binary conversions subnet masks and IDs CIDR masks Copy subnet ranges to clipboard (for importing into Pocket Word, Excel, or Inbox) Class masks and bit usages
- Software downloads 2009-07-10
- SquidMan 2.5 (Mac)
- SquidMan is a Mac OS X graphical installer and manager for the Squid proxy cache. It is designed to operate as a "personal" proxy server. When you run Squid on a MacOS X computer, it can: cache downloaded content, reducing network traffic and improving browsing performance on slow links...
- Software downloads 2009-07-04
- IP Calc 1.0 (Mobile)
- Enter the desired IP Address, then use the slider to select your subnet mask and every subnet related item is immediately calculated and displayed on one simple screen. IP Calc features instant mobile CIDR IPv4 calculations, displays network and broadcast addresses, subnet and Cisco Wildcard masks, the host range (HostMin...
- Software downloads 2009-06-25
- Network Ping 1.0 (Mobile)
- Network Ping is a software test tool for maintaining and debugging network problems on a LAN. Get an easy view for a full subnet on a single screen. Look at the screen to the left displaying the status for devices. Green and the device is working, yellow, there is a...
- Software downloads 2009-06-24
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