or download this
./tcp-syn.pl
Useless use of numeric gt (>) in void context at ./tcp-syn.pl line 38.
Can't locate auto/Net/RawIP/opset.al in @INC (@INC contains: /etc/perl
+ /usr/lib/perl5/vendor_perl/5.8.8/i686-linux /usr/lib/perl5/vendor_pe
+rl/5.8.8 /usr/lib/perl5/vendor_perl/5.8.6 /usr/lib/perl5/vendor_perl/
+5.8.6/i686-linux /usr/lib/perl5/vendor_perl/5.8.7 /usr/lib/perl5/vend
+or_perl/5.8.7/i686-linux /usr/lib/perl5/vendor_perl /usr/lib/perl5/si
+te_perl/5.8.8/i686-linux /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl
+5/site_perl /usr/lib/perl5/5.8.8/i686-linux /usr/lib/perl5/5.8.8 /usr
+/local/lib/site_perl .) at ./tcp-syn.pl line 32