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- The external interface makes it possible to connect the simulation with real
- networks.
- In this example the network consists of one client, one router, one internal
- server and one external (real) server.
- The client sends 100 MB of data to the external server using TCP for uplink traffic.
- For downlink traffic the external server may send data to the internal server.
- To run this example, some parameters have to be adjusted in the omnetpp.ini.
- - Make sure that you have libpcap-dev (v1.5.3 or later) installed on your machine.
- - Turn on the "Network Emulation" feature (In IDE / INET Project Properties / Project Features.
- (if you forget this you will receive a 'Class "inet::cSocketRTScheduler" not found' error)
- - Rebuild INET
- - Set **.ext[0].device to the device name of the interface of the computer
- running the simulation in the omnetpp.ini file.
- - Set IP address of the external server to: 192.168.0.111/24 and add a route
- to routers external interface 192.168.0.100/24 and set the gateway to the
- IP address of the computer, on which the simulation is running
- or adjust the omnetpp.ini and mrt files to your networks setup.
- - For uplink traffic use e.g. FileZilla and setup your external server to
- listen on port 10021.
- - For downlink traffic use e.g. Iperf with following command line:
- iperf -c 172.0.1.111 -P 1 -i 1 -m -p 10021 -M 1452.0B -l 100.0M -f m -t 0
- Start the simulation with root privileges.
- IP addresses and routing tables are set up by using mrt files.
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