Thanks, guys, for reporting this bug. I believe the code is now fixed so that even METHOD PCAP will work as expected -- outbound packets won't be emitted from FromDevice.
Eddie On 7/9/11 3:02 PM, Robert Sombrutzki wrote: > Hi, > i discovered the same behavior. It's seem to be related to the usage of pcap. > If i use the following example, it works (no loop). > FromDevice(eth0, METHOD LINUX, PROMISC true)->Queue->ToDevice(eth0, METHOD > LINUX ); > > The next script causes the loop: > FromDevice(eth0, METHOD PCAP, PROMISC true)->Queue->ToDevice(eth0); > > You didn't use the param METHOD, but in the git PCAP is the default capture > method. Can you please check, whether you script causes a loop, if you > use "METHOD LINUX" ? > > Best regards, > Robert > > On Samstag, 9. Juli 2011, Antonie Henning wrote: >> Hi, >> >> Something I discovered with the latest git pull code: >> >> Using the same interface in a fromdevice and todevice element, seems to >> cause a loop e.g. >> >> Eth0 receives 1 pps but transmits e.g. 80k pps @ 1500bytes or line rate >> 1gbps. This can be replicated with the config below: >> >> FromDevice(eth0, PROMISC true)->Queue->ToDevice(eth0); >> >> To test this the following example can be used at the source of the >> packets: >> >> // Where ethX is connected to eth0: >> RatedSource(DATA \<DATA>, RATE 1, LIMIT 10, ACTIVE true, STOP true) -> >> Queue -> ToDevice(ethX); FromDevice(ethX, PROMISC true) >> -> c::Counter -> Queue -> Discard; >> >> >> Script( >> wait 1, >> print c.rate, >> loop >> ); >> >> Changing the interface in the ToDevice to a different interface e.g. eth1 >> solves the problem... >> >> When adding another fromdevice and todevice pair even with different >> interfaces (as long as a fromdevice interface and todevice interface match >> somewhere in the config) the problem returns e.g FromDevice(eth0, PROMISC >> true)->Queue->ToDevice(eth1); >> FromDevice(eth1, PROMISC true)->Queue->ToDevice(eth0); >> >> I have checked whether this is because of promiscuous mode but found the >> same result when removing promisc and using EtherEncap. >> >> A >> _______________________________________________ >> click mailing list >> click@amsterdam.lcs.mit.edu >> https://amsterdam.lcs.mit.edu/mailman/listinfo/click > > > > _______________________________________________ > click mailing list > click@amsterdam.lcs.mit.edu > https://amsterdam.lcs.mit.edu/mailman/listinfo/click _______________________________________________ click mailing list click@amsterdam.lcs.mit.edu https://amsterdam.lcs.mit.edu/mailman/listinfo/click
