Now run the python script by using below command- python2 IOUkeygen.py. print 'Cisco IOU License Generator - Kal 2011, python port of 2006 C version'. IOU1(config)#ip route 48.0.0.0 255.0.0.0 192.168.20. Make the file executable with ' chmod +x CiscoKeyGen.py ' and execute it '. So let’s configure our router to route traffic destined to previous ranges out the appropriate interfaces. On the router set routes to the emulated client and servers:įor this lab we will generate IMIX traffic (64byte UDP packets profile) from emulated clients and servers using virtual IP range configurable in 16.0.0. In fact it doesn’t matter for TRex because we have routes to forward traffic out the appropriate interfaces to reach TRex interfaces. Protocol Address Age (min) Hardware Addr Type Interface We also need to set our router under test with the MAC addersses used by TRex for the traffic. Make sure the list of interfaces ids match the ones defined by dpdk_nic_bind.py We opt for the first solution:Īnd edit Trex configuration file /etc/trex_cfg.yaml You can set TRex to match the DUT MACs or DUT to match the default MAC configured on TRex. Insert the a device to test, DUT (Device Under Test), in our case it is a Cisco IOU router and build the following topology, in which TRex will play the role of the client and the server for the generated traffic.īecause TRex doesn’t implement ARP, we have to manually indicate the router MAC addresses of the directly connected interfaces. Edit the VM template and make sure to select “Allow GNS3 to use any configured VMware adapter”

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