Hey Chris, PCAP_NO_PF_RING is present in the strings output. I take it that it's not using PF_RING?
Thanks On Thu, Sep 22, 2011 at 11:10 AM, Chris Wakelin <[email protected]>wrote: > The PF_RING library gets statically linked into libpcap and tcpdump, I > believe. Try "strings tcpdump" and see if you get things like > "PCAP_NO_PF_RING" in it. > > Best Wishes, > Chris > > On 22/09/11 16:06, Jon Schipp wrote: > > Hello all, > > > > I've spent many hours this morning trying to get the tcpdump application > > that is included with the PF_RING source to use PF_RING. > > I've read the and followed the directions in README.FIRST, succesfully > > compiled PF_RING and the userland, loaded the pf_ring.ko module, all > good. > > > > I tested pf ring with pfcount/pcount and it reported 0 drops in packets > when > > using iperf and generating 800Mbps. Sweet! > > > > I'm running tcpdump IN the userland directory to test it with PF_RING. > > However, the results are no different than with my normal tcpdump i.e. > > dropping tons of packets. > > Correct me if I'm wrong, but I was under the impression that the sources > in > > userland would be PF_RING "ready" after building the userland. > > $ ldd ./tcpdump > > linux-vdso.so.1 > > libpthread.so.0 > > libc.so.6 > > /lib/ld-linux-x86064.so.2 > > > > I looked at this and was thinking that it wasn't compiled with the custom > pf > > ring libraries since I didn't see libpfring etc. but then I went to the > > examples directory and did an ldd on pcount and pfcount and they reported > > the same libraries. > > > > As of now, I don't know whether it's a library issue or not. > > > > Thanks > > > > > > > > _______________________________________________ > > Ntop-misc mailing list > > [email protected] > > http://listgateway.unipi.it/mailman/listinfo/ntop-misc > > > -- > --+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+- > Christopher Wakelin, [email protected] > IT Services Centre, The University of Reading, Tel: +44 (0)118 378 2908 > Whiteknights, Reading, RG6 6AF, UK Fax: +44 (0)118 975 3094 > _______________________________________________ > Ntop-misc mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop-misc > -- - Jon -- ------------------------------------------------------------------ VMB: 812-682-0231 Dubois County Linux User Group - http://www.dclinux.org Southern Indiana Computer Klub - http://sickbits.networklabs.org Bloomington FOOLS - http://www.bloomingtonfools.org/ BloomingLabs - http://www.bloominglabs.org ISSA-Kentuckiana - http://issa-kentuckiana.org GPG Key ID: 810903CB Key fingerprint = 0069 ED69 EABB DF84 5983 AD3C 6C20 BEFD 8109 03CB
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