NAME

       Net::Write::Layer - base class and constants

SYNOPSIS

          use Net::Write::Layer qw(:constants);

DESCRIPTION

       This is the base class for Net::Write::Layer2, Net::Write::Layer3 and Net::Write::Layer4
       modules.

       It just provides those layers with inheritable attributes, methods and constants.

ATTRIBUTES

       dev Network interface to use.

       dst Target IPv4 or IPv6 address.

       protocol
           Transport layer protocol to use (TCP, UDP, ...).

       family
           Adresse family to use (NW_AF_INET, NW_AF_INET6).

METHODS

       new Object constructor. Returns undef on error.

       open
           Open the descriptor, when you are ready to send. Returns undef on error.

       send (scalar)
           Send the raw data passed as a parameter. Returns undef on failure, true otherwise.

       close
           Close the descriptor.

CONSTANTS

       NW_AF_INET
       NW_AF_INET6
       NW_AF_UNSPEC
           Address family constants, for use with family attribute.

       NW_IPPROTO_IP
       NW_IPPROTO_IPv6
       NW_IPPROTO_ICMPv4
       NW_IPPROTO_TCP
       NW_IPPROTO_UDP
       NW_IPPROTO_ICMPv6
           Transport layer protocol constants, for use with protocol attribute.

       NW_IP_HDRINCL
       NW_IPPROTO_RAW
           Mostly used internally.

SEE ALSO

       Net::Write::Layer2, Net::Write::Layer3, Net::Write::Layer4

AUTHOR

       Patrice <GomoR> Auffret

COPYRIGHT AND LICENSE

       Copyright (c) 2006-2012, Patrice <GomoR> Auffret

       You may distribute this module under the terms of the Artistic license.  See
       LICENSE.Artistic file in the source distribution archive.