Enterprise IP - Address Manager
Enterprise IP - Address Manager is an easy-to-use application for assigning, cataloging, and maintaining IP addresses and host data for both registered and private TCP/IP addressed networks. This open database software provides a simple interface to enable you to establish IP addressing schemes... Other features include: export and import of CSV format files, export of HTML formatted listings, printed listing reports, network diagram attachments, host configuration and revision text attachments, ping to IP, trace to IP, telnet to IP, browser connect to IP, logo branding support, interface...
http://www.enterpriseip.net/downloads/EIP-AM_Setup.exe - 8Mb - Download - Screenshot

Subnetting Calculator
Subnetting Calculator. NET was designed with network administrators in mind. Just enter in the the IP address or Network address and the select the Subnetmask. You will then know what network the address is on, all other networks available, if the Address is a Network ID, Broadcast ID or good... Inludes Auto-Update, so you can always get the latest updates.
http://camalotdesigns.com/scripts/...ce32a-6391-4706-ac23-b1523818582f - 50Kb - Download - Screenshot

a-Change Mac Address
Change Mac Address in seconds! Scan Mac Address within any range of IP address. Exports the scanning results from a Mac Address Lookup list. Spoofing the Mac Address of your network card to any new Mac Address. It makes ping mac address possible. Use this mac address finder to search proper mac... It scan any range of IP for the proper Mac Address. ... It checks your Mac Address inputting. ... It recommends the proper Ethernet network card. ... ) It support changing mac address searching speed.
http://amac.paqtool.com/images/amac.exe - 689Kb - Download - Screenshot

Show IP
Show IP is a simple utility to recognize your real internet IP. Show IP is a little utility that will return your actual Internet IP address even if you're behind a Firewall or Router. In addition it will retrieve the Host name and Network IPs from your Computer connected to your Network. ... Show IP was made to help those who do not have or are unable to get a static IP address. ... It accomplishes this by connecting to remote Web Site and returning the IP address from there. ... Most home computers receive a different IP address each time they log into their ISP.
http://www.fastshowip.com/showIP_setup.exe - 109Kb - Download

SMAC
SMAC is a powerful, yet easy to use MAC Address Changer for Windows 2000, XP, and 2003 systems, regardless of whether the manufacturers allow this option or not. The new MAC addresses you change will sustain from reboots. Features: Change MAC Address in 3 clicks || validate MAC Address ||...
http://www.klcconsulting.net/smac/default.htm#download - 5Mb - Download - Screenshot

NetPenguin
NetPenguin - including following network tools:IP Scanner which can find IP address;LAN Scanner which can scan IP addresses in ethernet LAN;Ping;netstat;Port Scanner;Domain Name Search which can...
http://www.netpenguin.net/software/NetPenguin.exe - 9Mb - Download - Screenshot

IP Helper
This IP Helper software shows you both your internal and external IP addresses, can notify you by email when they change, performs DNS and Whois lookups, and much more! Many Internet Service Providers (ISPs) use non-static IP Addresses. Because of this, your IP Address can change frequently. ... Displays your Internal Network IP Address for users that are part of a network, or behind a router Displays your External IP Address, which is the IP Address that the "outside world" sees IP Address Overlay displays your IP Addresses in the top left corner of the screen, on top of all other windows!
http://www.rebrandsoftware.com/demodownload.asp?id=9 - 3Mb - Download - Screenshot

NATural IP SOHO
If your network or internet connection uses any of these... * Shared IP address * Network Address Translation (NAT) * a Firewall of some kind ... then you have probably found that it causes problems with many kinds of Internet applications. You need to use programs like NetMeeting®, VOIP, file... NATural IP, on the other hand, allows you to run all your existing applications without reducing your network security or requiring individual IP addresses for each PC on your network. ... But that reduces your network security, which you probably wouldn't want to do.
http://www.naturalip.com/download/NATural-SOHO.exe - 372Kb - Download - Screenshot

Net Profile Switch
JitBit Net Profile Switch allows connecting a computer to two or more networks.. Ideal for laptop/notebook users, who travel from one network location to another. It switches a computer between multiple network configurations (profiles) with one click of a button. ... Use your laptop/notebook on multiple networks: assume you have a DHCP-enabled network at your office, and a static IP-address assigned to your network card at home. ... Every time you connect your notebook or laptop to a new network, you have to change network adapter settings manually.
http://www.jitbit.com/files/NetProfileSwitchSetup.zip - 1Mb - Download - Screenshot

AB Complete Ping
It allows you to ping one or more IP addresses, to scan a network for shared resources and to scan a computer for open ports. The software can notify you by e-mail if the IP address is or is not responding. It can play an wave file on notifying. You can ping only once or you can ping the IP... You can insert the starting and ending IP address and this software will ping all the addresses between and will tell you which IPs are responding.
ftp://gatekeeper.dec.com/pub/micro/pc/simtelnet/win95/network/abcp.zip - 2Mb - Download - Screenshot