Venerable fellow monks, I'm trying to fidle around tcp options. 
sub initial_tcp
        {

        $n = Net::RawIP->new({
           ip  => {
                   saddr => $srcip,
                   daddr => $dstip,
                },
           tcp => {
                   source => $src,
                   dest => $dst,
                   syn  => 1,
                },

        });
           $n->opset(tcp =>{
                           #Window Scale 9 x512
                           type => 0x0303,
                           data => 0x09,
                         }
                         );
           $n->send;
           $n >ethnew($intf);
           $n->ethset(source => $smac, dest => $dmac);
           $n->ethsend;
        }

[download]
I always get the following error message 
./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

[download]
What do I misse here?

In reply to RAWIP: uses of tcp options [opset] by kroupouk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.