Vlsm Subnet Topology

The user has to specify the network IP, network subnet and the subnet mask to which he wants the network to be broken down to.Text descriptions can be attached to any given subnet/subnet mask combination. Platforms: Windows, Mac, *nix, Python, BSD Solaris

Subnet Creator is a GUI tool that takes a range of IP addresses and returns the contiguous IP subnets needed to reproduce that range in subnets. It includes a useful library of IP manipulation routines for Qt Platforms: *nix

Free Subnet Calculator from Solarwinds generates all subnets with real-time DNS, PING and CIDR tests.This networking tool performs DNS resolution, address translation, supports CIDR and Address Class information. It calculates subnets based on Subnet Mask, Mask Bits, Host Bits, Number of Subnets... Platforms: Windows

Subnet ScanPro is a quick, easy, and FREE solution for network professionals who need computer inventory data. No installation, no client-side software, just click and run, small enough to fit on a floppy, flexible enough to meet the needs of a wide variety of environments. You get your inventory... Platforms: Windows

Subnet calculator for Microsoft Windows with support for CIDR (Classless Internet Domain Routing) and wildcard masks. Platforms: Windows

The JTS Topology Suite is an API for modelling and manipulating 2-dimensional linear geometry. It provides numerous geometric predicates and functions. JTS conforms to the Simple Features Specification for SQL published by the Open GIS Consortium. Platforms: Windows, Mac, Linux

A pure topology of networks for web browser,has the basic operation like drag and drop,draw the link etc. Platforms: Windows, Mac, Linux

LanTopolog is a freeware application that provides physical network topology discovery, visualization and monitoring Key features: - Automatic physical network topology discovery based on SNMP - Provide detailed and searchable physical network topology map so you can quickly isolate... Platforms: Windows

SILC Map is an utility which can be used to visualize the topology of a SILC network. This project can create maps which indicate the exact global position of the servers and it can create HTML pages out of the information it gathers from the servers. It is also possible to create a HTML map... Platforms: *nix

Whatmask provides a subnet info utility. Whatmask is a small C program that helps with network settings. Notations supported are CIDR (e.g. /24), Netmask (e.g. 255.255.255.0), and Wilcard Bits (e.g. 0.0.0.255). These notations are all identical. CIDR notation commonly has a "/" in front of... Platforms: *nix

A freeware program designed to find the MAC Address of any IPv4 device on your local network (subnet) even if that device is protected by a personal firewall. This program uses ARP discovery and can even find active devices that do not respond to PING. Full install/uninstall. Platforms: Windows

hwloc provides portable mechanisms to provide programs with information about the hierarchy of cores, NUMA and CPUs nodes, available GPUs, caches, etc. hwloc allows schedulers such as the Marcel thread library to make informed decisions. hwloc provides a portable abstraction (across OS,... Platforms: Mac

WiR3D is a simple tool to scan LANs, discover nodes and topology using SNMP. It has a feature to visualize the topology of scanned subnets as a 3D scene. In the future more features will be implemented to turn WiR3D into NMS app with GTK GUI. Platforms: *nix

Calia is a modular Network Management System with modules for Networking (switches, ports, automatic topology discovery, IP/MAC tracking, statistics), Systems (for DNS and DHCP management), Physical (for fiber cable plant tracking) and other utilities. Platforms: *nix

arphaxad is a tool providing fast subnet arp-request based scanning. It is also able to isolate a specific host (just by passing the option -p ) from the Ethernet-based network. Platforms: *nix

The Advanced IP Address Calculator is a freeware Windows 95/98/NT/2000/XP utility that lets you to calculate every aspect of your subnet configuration in a few mouse clicks! It was designed for any network engineer who needs a fast way to determine subnets. Platforms: Windows

DhcpExplorer tool allows you to discover DHCP servers on your local subnet or LAN. This is useful for locating servers that are not supposed to be on your network ( rogue DHCP servers ) as well as checking the expected output of known servers. DHCP Explorer broadcasts on the local physical subnet... Platforms: Windows

The Advanced IP Address Calculator is a freeware Windows 95/98/NT/2000/XP utility that lets you to calculate every aspect of your subnet configuration in a few mouse clicks! It was designed for any network engineer who needs a fast way to determine subnets. Platforms: Windows

The Network Development group maintains two web-accessible database systems: the Network Registration system (NetReg) and the Network Monitoring (NetMon) system. These systems were designed from the ground up at Carnegie Mellon. NetReg NetReg provides administrators a central platform for... Platforms: *nix

Netdisco is an SNMP-based L2/L3 network management tool designed for moderate to large networks. Routers and switches are polled to log IP and MAC addresses and map them to switch ports. Automatic L2 network topology discovery, display, and inventory. Platforms: *nix