How to capture and count pktgen packets ?
I'm a newbi in the linux world and I need some help. Well this is my question.
I need to capture and count the packets generated with linux packets generator (pktgen). I managed to activate pktgen and send packets with it (from A to B). However i need to capture or count those packets ( on B). I'm following the "pktgen the linux packet generator" paper from Robert Olsson (ftp://robur.slu.se/pub/Linux/net-development/pktgen-testing/pktgen_paper...) and he mention a patchlet for the ip_input.c file in order to drop and count the packets. I would like to know how to apply this patchlet to the ip_input.c file and how can i display the results (counts).
u can do it with iptables assume that A ip is 10.0.0.1 and B ip is 10.0.0.2...
u can do it with iptables
assume that A ip is 10.0.0.1 and B ip is 10.0.0.2
ur pkgen sends packets to udp port number 15000
add rule to the input chain of the B machine
#iptables -A INPUT -p udp --dport 15000 -s 10.0.0.1
and u can list accounting data with
#iptables -L INPUT -v