John McGowan <[EMAIL PROTECTED]> wrote: > > Kernel 2.6.13. Breaks libpcap. > > Fedora Core 2, gcc 3.3.3, Pentium III (933MHz) > > I had written about my dismay that traceproto and tcptraceroute > no longer worked and suspected that libnet was broken. > > It seems that it is libpcap that is broken by kernel 2.6.13 and > tcpdump itself no longer works. > Well, it works ... but not correctly. > > Capture data, then look for ICMP messages > (e.g. Time Exceeded errors as in a traceroute) > by filtering the file. > > tcpdump -w 1.cap > tcpdump -f "ip proto \icmp" -r 1.cap > > That works. > > > Filter incoming data, looking for ICMP messages: > > tcpdump -f "ip proto \icmp" > > Well, that catches nothing. > > > I tried recompiling (source RPM, Fedora Core 2) tcpdump > (libpcap, tcpdump, etc.) and reinstalling. That did not > fix the problem with tcpdump. > > It also broke a tethereal script I was using (which I changed > to capture all packets, which works as indicated above, and > then used a '-R', read, filter to display the one's I want). >
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