VNUML and Dynamips/Dynagen mixed scenario

VNUML and Dynamips/Dynagen mixed scenario

Scenario This example will emulate the network scenario shown in the figure, where the hosts are emulated using VNUML virtual machines and the routers are CISCOs emulated using dynamips.

To create the scenario, you first have to download the vnuml and dynagen scenarios specifications (provided below) to a directory. Remember to modify “idlepc” values in the dynagen specification to adapt it to your optimum values.
Later, you can start the scenario by following this steps:

  • Start VNUML scenario (hosts) with:

vnumlparser.pl -t dynavnuml.xml -v -u root

  • If not already running, start dynamips daemon:

dynamips -H 7200&

  • Start Dynagen scenario (routers) with:

dynagen dynavnuml.net

  • Once started, open router consoles with:

=> console /all

  • Enable router tap interfaces (they are automatically created by dynagen but not enabled):
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ifconfig r1-e00 up ifconfig r1-e01 up ifconfig r1-e02 up ifconfig r2-e00 up ifconfig r2-e01 up

  • Connect router interfaces with virtual bridges:

brctl addif Net0 r1-e00 brctl addif Net1 r1-e01 brctl addif Net2 r1-e02 brctl addif Net2 r2-e00 brctl addif Net3 r2-e01

  • Configure the routers, loading the configurations shown below. To do that, you have to:

enable conf t

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Sunday, July 15th, 2007 Uncategorized

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