J. A. Green's Network Notepad allows users to create an interactive network design map by dragging, dropping and connecting icons for routers, switches, PCs, servers, hubs, etc. Name the devices, assign them IP addresses and define other properties, then click on the map icons to telnet into or browse the devices on the network.
Network Notepad is generally well-reviewed by download sites and certified clean (no adware or spyware) by Softpedia. The newest version (4.6.3) also adds a Cisco Discovery Protocol (CDP) tool for those running Cisco or CDP-supporting products to auto-discover connected devices. And it's absolutely free. Green, though, is looking for network icons and sample network diagrams.
Network Notepad runs on Windows 9x and later versions.
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