Introduction

This lab runs on a virtualised environment for Cisco IOS called Dynamips. The method of access to each virtual router is via Telnet to a specific port on the IP of the machine that runs the virtualisation platform.

Lab access instructions

The instructors will divide the class into groups, where each group is responsible for the operation of the campus routers. Decide amongst yourselves which person will be responsible for configuring each router.

Access to Dynamips is by telnet, where each virtual router has a different port number in the table below.

Each participant should ensure that their device has a suitable telnet client. Linux and MacOS system have access to a shell command prompt (or Terminal) program, which allows telnet at the command line. Windows users should use Putty or another similar telnet program; make sure you select Telnet not SSH.

The instructor will provide the IP address of the host in this particular workshop. It will normally be vtp.ws.nsrc.org, but the instructor will confirm this at the start of this lab.

Dynamips Port to Router Console Map

If there are more campuses, the port access scheme continues in the same style. 

Login instructions

Using the telnet client on your PC or laptop, connect to the routers you have been assigned; for example, to connect to the console port of B12:

telnet vtp.ws.nsrc.org 2012

After executing the telnet command, you will see something like the following:

Trying vtp.ws.nsrc.org...
Connected to vtp.ws.nsrc.org. 
Escape character is '^]'. 
Connected to Dynamips VM "B12" (ID 8, type c7200) - Console port

Hit ENTER at this point. Then, if you see this question:

Would you like to enter the initial configuration dialog? [yes/no]:

Answer "no".

The router will show some initialization routines, and finally, you will see the default prompt:

Router>

You can then go into privileged mode:

Router> enable 
Router#

And then enter configuration mode:

Router# configure terminal
Router(config)#

And you are ready to start entering configuration statements. When you are done, exit configuration mode by typing end or pressing ctrl-Z and save your changes:

Router(config)# end
Router# write memory