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To execute the ns emulation code
make nse
Run scripts as root.
To originate a TCP connection from ns we need two machines.
To use tcpemu.tcl perform the following steps:
- Perform the following steps on machine A
- Add a route to a dummy IP address assigned to ns TCP node using
route add dummy_IP IP_where_nse_is_running
- Disable IP redirects using
sysctl -w net.inet.ip.redirect=0
- start a tcp server application on some machine A
( TCP Application provided at www-scf.usc.edu/~alefiyah/application/tcp-server.tar.gz )
-Perform following steps on machine B
- Disable IP forwarding using
sysctl -w net.inet.ip.forwarding=0
- Configure tcpemu.tcl with address and port for TCP server application
- run "nse tcpemu.tcl"
To pass traffic through ns, we need three machines
Machine A with start a TCP connection with Machine B via machine C which has nse running.
To use thrutcp.tcl perform the following steps:
- Perform following steps on machine A and machine B
- Disable IP redirects
- Disable IP forwarding
- On machine A, add route to machine B via machine C
route add B_IP C_IP
- On machine B, add route to machine A via machine C
route add A_IP C_IP
- Configure the correct filters in thrutcp.tcl
- run "nse thrutcp.tcl
- Start any TCP application ( ie: ftp or rcp) between machines A and B
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