Free ip scanner software for windows

A freeware port scanner, written completely in Java. NoJ/Direct no native calls anywhere.

Advanced IP Scanner is a robust, fast and easy to use multithreaded IP scanner for Windows. To be used even by the less-than-pro people. It presents various types of information about local network computers in just a few seconds!
It gives you one-click access to many useful functions - remote PC shutdown and wake up and more. Powered with multithread scan technology, this program can scan hundreds of computers per second, allowing you to scan C or even B class networks even from your modem connection!

DC Port Scanner is, as its name says, a simple and easy-to-use port scanner. DC Port Scanner is, as its name says, a simple and easy-to-use port scanner.
Enter the first three bytes and the trailing dot of an IP address (e.g. "127.0.0."). Click go and a file containing all the open ports will be given.
Must not be used maliciously. Intended as network administrators security analysis tool.
DC Port Scanner is also a small program that does not require any installation.

Update Scanner is a Firefox extension that monitors web pages for updates.
Just press Scan. You will be told of any websites that have been changed since the last scan.

Multi-socket scanner capable of scanning local and remote ports quickly, even on slower machines.

A free, standalone scanner that detects hosts infected with eihter variant of MyDoom Virus.
MyDoom Scanner alows users to enter a range of IP addresses to scan for infected computers.

Many servers and network devices like routers and switches provides features like ACLs, IP Filters, Firewall rules and so on to give access to their Services only to particular network addresses (usually Administrators workstations).
The main purpose of this program is to scan for IP restrictions set for a particular service on a host. It combines "ARP Poisoning" and "Half-Scan" techniques and tries totally spoofed TCP connections to the selected port of the target.
IP Restrictions Scanner was designed not to be a port scanner but a "valid source IP address" scanner for a given service.