Disregard previous I got it working, I hadn't set up a collector element on the ns3 node.
On Tue, Jan 24, 2012 at 12:25 PM, Anthony Dempsey <[email protected] > wrote: > I've done a bit more work on this and realised I hadn't encapsulated the > netflow data in any packet type, I've now encapsulated it in UDP/IP > headers. So my netflow now looks like: > > Idle -> NetflowExport(af0, VERSION 10, INTERVAL 1) > -> UDPIPEncap($myaddr3, 4739, 172.16.3.2, 4739) > -> CheckIPHeader2(INTERFACES 172.16.1.2/255.255.255.0 > 172.16.2.1/255.255.255.0 172.16.3.1/255.255.255.0) > -> rt; > > I'm still having problems when I try to send to a node in my simulation. > The packets are ok, I've encapsulated them in ethernet headers and dropped > them to a pcap file and they look fine and I can use IPEncp(4, ....) giving > two IP headers and the simulation wont stop but does give me this warning: > > expensive Packet::push; have 8 wanted 14 > > but I don't want to have IP in IP. I'm adding some FEC to IPFIX so I need > to be able to encode, transfer, and decode the packets before they are > passed to NS-3. If I don't use a click config file on node 3 I can get the > simulation to complete but I need to access the packets before they are > passed to NS-3. I can print the packets before they are passed to [0]output > in the click files but the simulation crashes after that. > > Can anyone help me? > Cheers, > Anthony > > On Sat, Jan 21, 2012 at 4:43 PM, Anthony Dempsey < > [email protected]> wrote: > >> Can anyone point me to something that will help me set up the netflow >> components correctly? >> I'm trying to set up a simple simulation using ns3 of 4 nodes. n1 sends >> to n2, the router should log details in the IPFIX format and export them >> out to n3. >> n3 >> | >> n1--------router---------n2 >> >> I have no idea if I'm setting the system up properly and no idea how to >> get netflow components to send the information correctly. >> I've taken the example ip routing config file in NS3 and modified it to >> bring in the third node and I have an AggregateIPFlow component sitting >> between the CheckIPHeader2 and the StaticIPLookup componenets >> >> ch2 :: CheckIPHeader2(...) >> -> af0::AggregateIPFlows() >> -> rt :: StaticIPLookup(....) >> >> For the netflow components I have the following set up >> >> Idle -> NetflowExport(af0, VERSION 10, INTERVAL 1) >> -> NetflowPrint(RECORDS true, VERBOSE true, OUTFILE netflow) >> -> rt; >> >> And this produces nothing for me, if I change VERSION to 9 I get some >> output in the netflow file but nothing interesting. >> Can someone see what I've missed or show me where I can learn more about >> how to set up netflow components and have them send packets from the router >> to n3 while the simulation runs? >> >> Cheers, >> Anthony >> > > _______________________________________________ click mailing list [email protected] https://amsterdam.lcs.mit.edu/mailman/listinfo/click
