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Full Discussion: IPv6 tcpdump at FreeBSD!!!
Special Forums IP Networking IPv6 tcpdump at FreeBSD!!! Post 302667325 by zer0sig on Friday 6th of July 2012 04:51:03 AM
Old 07-06-2012
do you have
Code:
device bpf

enabled in your kernel?

You can check this with:
Code:
strings /boot/kernel/kernel | grep bpf

if device bpf is not in the results, you need to compile it into the kernel.
 

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TRACESTATS(1)							   User Commands						     TRACESTATS(1)

NAME
tracestats - perform simple analysis on a trace SYNOPSIS
tracestats [ -f | --filter bpf ]... inputuri... DESCRPTION
tracestats reads one or more traces and outputs summaries for each trace of how many packets/bytes match each bpf filter, as well as totals. If instead of doing this for the entire trace, but to do it for portions then use tracertstats(1) instead. -f bpf-filter --filter bpf-filter Add another bpf filter EXAMPLES
tracestats --filter 'host sundown' --filter 'port http' --filter 'port ftp or ftp-data' --filter 'port smtp' --filter 'tcp[tcpflags] & tcp-syn!=0' --filter 'not ip' --filter 'ether[0] & 1 == 1' --filter 'icmp[icmptype] == icmp-unreach' erf:/traces/trace1.gz erf:/traces/trace2.gz LINKS
More details about tracestats (and libtrace) can be found at http://www.wand.net.nz/trac/libtrace/wiki/UserDocumentation SEE ALSO
libtrace(3), tracemerge(1), tracefilter(1), traceconvert(1), tracesplit(1), tracesplit_dir(1), tracereport(1), tracertstats(1), tracepkt- dump(1), traceanon(1), tracesummary(1), tracereplay(1), tracediff(1), traceends(1), tracetopends(1) AUTHORS
Perry Lorier <perry@cs.waikato.ac.nz> tracestats (libtrace) October 2005 TRACESTATS(1)
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