Hi everyone, I will get flows using the "range" command. So I am reviewing documents and sample codes about this topic. I would like to ask a few things that I cannot understand. What is the flow generation procedure of range command? Take port 0 as an example. 128 different ip addresses and 2000 different port numbers are used for source and destination. As far as I understand, these lines are repeated for each package.But how is the flow creation procedure? My opinions: First: Is it a random port number and ip address for each pass over the file? So total 128 * 2000= 256000 flows were created here. Second: when we think of increment operator, generated packets: 1. packet: dst_ip: 192.168.1.1 , src_ip: 192.168.0.1 , dst_port: 2000 , src_port: 5000 2. packet dst_ip: 192.168.1.2 , src_ip: 192.168.0.2 , dst_port: 2001 , src_port: 5001 ................................ 128. packet: dst_ip: 192.168.1.128 , src_ip: 192.168.0.128 , dst_port: 2128 , src_port: 5128 129.packet dst_ip: 192.168.1.1 , src_ip: 192.168.0.1 , dst_port: 2129, src_port: 5129 or (???) dst_ip: 192.168.1.128 , src_ip: 192.168.0.128 , dst_port: 2129, src_port: 5129
then it will end when source and destination port numbers reach their highest value.. ........ Can you help with this issue? I want to measure the performance of the system that I have created in different flow numbers with the pktgen tool. For this reason, the number of flows is important for me. Thanks for your help. pktgen.range.dst_mac("0", "start", "3c:fd:fe:9c:5c:b8"); pktgen.range.src_mac("0", "start", "3c:fd:fe:9c:5c:d8"); pktgen.range.dst_ip("0", "start", "192.168.1.1"); pktgen.range.dst_ip("0", "inc", "0.0.0.1"); pktgen.range.dst_ip("0", "min", "192.168.1.1"); pktgen.range.dst_ip("0", "max", "192.168.1.128"); pktgen.range.src_ip("0", "start", "192.168.0.1"); pktgen.range.src_ip("0", "inc", "0.0.0.1"); pktgen.range.src_ip("0", "min", "192.168.0.1"); pktgen.range.src_ip("0", "max", "192.168.0.128"); pktgen.set_proto("0", "udp"); pktgen.range.dst_port("0", "start", 2000); pktgen.range.dst_port("0", "inc", 1); pktgen.range.dst_port("0", "min", 2000); pktgen.range.dst_port("0", "max", 4000); pktgen.range.src_port("0", "start", 5000); pktgen.range.src_port("0", "inc", 1); pktgen.range.src_port("0", "min", 5000); pktgen.range.src_port("0", "max", 7000); pktgen.range.pkt_size("0", "start", 64); pktgen.range.pkt_size("0", "inc", 0); pktgen.range.pkt_size("0", "min", 64); pktgen.range.pkt_size("0", "max", 256); -- Set up second port pktgen.range.dst_mac("1", "start", "3c:fd:fe:9c:5c:d8"); pktgen.range.src_mac("1", "start", "3c:fd:fe:9c:5c:b8"); pktgen.range.dst_ip("1", "start", "192.168.0.1"); pktgen.range.dst_ip("1", "inc", "0.0.0.1"); pktgen.range.dst_ip("1", "min", "192.168.0.1"); pktgen.range.dst_ip("1", "max", "192.168.0.128"); pktgen.range.src_ip("1", "start", "192.168.1.1"); pktgen.range.src_ip("1", "inc", "0.0.0.1"); pktgen.range.src_ip("1", "min", "192.168.1.1"); pktgen.range.src_ip("1", "max", "192.168.1.128"); pktgen.set_proto("all", "udp"); pktgen.range.dst_port("1", "start", 5000); pktgen.range.dst_port("1", "inc", 1); pktgen.range.dst_port("1", "min", 5000); pktgen.range.dst_port("1", "max", 7000); pktgen.range.src_port("1", "start", 2000); pktgen.range.src_port("1", "inc", 1); pktgen.range.src_port("1", "min", 2000); pktgen.range.src_port("1", "max", 4000); pktgen.range.pkt_size("1", "start", 64); pktgen.range.pkt_size("1", "inc", 0); pktgen.range.pkt_size("1", "min", 64); pktgen.range.pkt_size("1", "max", 256); pktgen.set_range("all", "on"); -- *Merve Orakcı* Research Asistant Gazi University - Institute of Informatics Computer Forensics Phone :+90 0312 202 3814