framework for crafting raw frames

 Net::Frame is a Perl framework for crafting raw frames (Layers 2 through 7).
 Out of the box, it can be used to produce ARP, Ethernet, IPv4, PPP, TCP and
 UDP frames. It has an extensible design for new frame implementations.
 .
 This module only creates frames; Net::Write (see libnet-write-perl) can be
 used to write frames directly to wire.