Even with your config you could run into problems as you are assuming all packets are IP packets. The correct way is to first check for valid IP packets:
FromDevice(lo) -> Classifier(12/0800) -> Strip(14) -> CheckIPHeader() -> IPClassifier(tcp) -> MyElem(1000) -> Discard; 2010/4/20 kkkkk5kou <[email protected]> > The input of CheckIPHeader() should be IP packets. But the output of > FromDevice() is MAC frames. Try this: > > FromDevice(lo) -> Strip(14) -> > CheckIPHeader()->IPClassifier(tcp)->MyElem(1000)->Discard; > > > > 在2010-04-20 23:53:54，"Mai Ali" <[email protected]> 写道： > > > > > >could anybody tell me what's wrong with this? > > > > > > > >FromDevice(lo) -> > CheckIPHeader()->IPClassifier(tcp)->MyElem(1000)->Discard; > > > > > > > >for the CheckIPHeader, it gives me error "IP header check faild: bad IP > version" > > > > > > > >thanks! > > > >_________________________________________________________________ > >Hotmail: Trusted email with powerful SPAM protection. > >https://signup.live.com/signup.aspx?id=60969 > >_______________________________________________ > >click mailing list > >[email protected] > >https://amsterdam.lcs.mit.edu/mailman/listinfo/click > _______________________________________________ > click mailing list > [email protected] > https://amsterdam.lcs.mit.edu/mailman/listinfo/click > _______________________________________________ click mailing list [email protected] https://amsterdam.lcs.mit.edu/mailman/listinfo/click
