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I configured the IP address and telnet for my Cisco router but on GNS3 it shows a different IP address. When I ping the router from my Ubuntu virtual machine using the IP address I configured the ping fails. However, when I ping the router using the IP address shown on GNS3 the ping is successful. I am not sure very familiar with GNS3 as we just started it in college and would appreciate help.

GNS3 IP address displayed

Router configuration for interface Router configuration for telnet

Topology

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  • I can't speak to the GNS3 internal's (why the vm can't ping the router), but the "console" column shown is how things outside the simulation can reach the CONSOLE port of the router.
    – Ricky
    Nov 23 at 17:53

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You have to distinguish between the simulated network and the control of the simulator. The router is part of the simulation -- its networks are also part of the simulation.

In real life, the console port of the router is a serial connection. It doesn't have an IP address. The console is used to initially configure the device (among other things). The GNS3 simulator lets you access console port via an IP address.

You can connect your PC to the simulated network by explicitly configuring that in GNS3.

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