GNS3 is a graphical network simulator that allows simulation of complex networks. Design complex network topologies and to launch simulations on them. GNS3 is an excellent complementary tool to real labs for network engineers, administrators and people wanting to pass certifications such as CCNA, CCNP, CCIP, CCIE, JNCIA, JNCIS, JNCIE.
1. Design of high quality and complex network topologies.
2. Emulation of many Cisco IOS router platforms, IPS, PIX and ASA firewalls, JunOS.
3. Simulation of simple Ethernet, ATM and Frame Relay switches.
4. Connection of the simulated network to the real world!
5. Packet capture using Wireshark.
The license of this software is Free, you can free download and free use this ip utility software.