dynamips

Dynamips is a software that emulates Cisco IOS on a traditional PC. It has been created by Christophe Fillot who started his work in August 2005. The last official release of Dynamips supports Cisco 7200, 3600 series (3620, 3640 and 3660), 3700 series (3725, 3745), 2600 series (2610 to 2650XM, 2691) and 1700 series. It is very popular with people studying for CCNA (Cisco Certified Network Associate), CCNP (Cisco Certified Network Professional) and CCIE (Cisco Certified Internetwork Expert) certification exams. Please note that you must provide your own IOS images compatible with the Cisco hardware emulated by Dynamips.