Swregn.com Network Simulator with Designer for CCNA has the following features - Router, Switch and Network Simulator, 80+ labs available for thorough hands-on preparation for candidates preparing for cisco certifications, Network Designer supporting 800/1700/2500/2600/3600 series routers, 1900/2950/2960 series switches and connectors available are Serial, Ethernet, Frame-Relay, Fast Ethernet etc and Detailed help file.