CertExams.com router simulator has the following features:-Several lab exercises: The labs are particularly useful for candidates preparing for Cisco CCNA Intro, ICND, and CCNA certifications. 50+ labs are available for thorough hands-on preparation. -Cisco router console simulation: Cisco router console (running Cisco router IOS).-Comprehensive help file-Flash cards-Simulate up to 3 routers. For supported commands, please visit the website routersimulator.certexams.com