Checking if your kit is complete...
Warning: prerequisite Net::DNS::ToolKit 0.26 not found at /home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/MakeMaker.pm line 343.
Looks good
Writing Makefile for Net::Connection::Sniffer
cp Sniffer.pm blib/lib/Net/Connection/Sniffer.pm
cp lib/Net/Connection/Sniffer/Report.pm blib/lib/Net/Connection/Sniffer/Report.pm
cp lib/Net/Connection/Sniffer/Util.pm blib/lib/Net/Connection/Sniffer/Util.pm
/home/cpanrun/build/5.6.1/bin/perl -I/home/cpanrun/build/5.6.1/lib/5.6.1/i686-linux-thread-multi -I/home/cpanrun/build/5.6.1/lib/5.6.1 /home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/xsubpp  -typemap /home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/typemap -typemap typemap Sniffer.xs > Sniffer.xsc && mv Sniffer.xsc Sniffer.c
gcc -c  -DUSE_REENTRANT_API -D_GNU_SOURCE -D_REENTRANT -fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2   -DVERSION=\"0.23\" -DXS_VERSION=\"0.23\" -fpic -I/home/cpanrun/build/5.6.1/lib/5.6.1/i686-linux-thread-multi/CORE  Sniffer.c
Sniffer.xs:15: pcap.h: No such file or directory
make: *** [Sniffer.o] Error 1