NAME

       Net::Frame::Layer::NULL - BSD loopback layer object

SYNOPSIS

          use Net::Frame::Layer::NULL qw(:consts);

          # Build a layer
          my $layer = Net::Frame::Layer::NULL->new(
             type => NF_NULL_TYPE_IPv4,
          );
          $layer->pack;

          print 'RAW: '.$layer->dump."\n";

          # Read a raw layer
          my $layer = Net::Frame::Layer::NULL->new(raw => $raw);

          print $layer->print."\n";
          print 'PAYLOAD: '.unpack('H*', $layer->payload)."\n"
             if $layer->payload;

DESCRIPTION

       This modules implements the encoding and decoding of the BSD loopback layer.

       See also Net::Frame::Layer for other attributes and methods.

ATTRIBUTES

       type
           Stores the type of encapsulated layer.

       The following are inherited attributes. See Net::Frame::Layer for more information.

       raw
       payload
       nextLayer

METHODS

       new
       new (hash)
           Object constructor. You can pass attributes that will overwrite default ones. See
           SYNOPSIS for default values.

       The following are inherited methods. Some of them may be overridden in this layer, and
       some others may not be meaningful in this layer. See Net::Frame::Layer for more
       information.

       layer
       computeLengths
       computeChecksums
       pack
       unpack
       encapsulate
       getLength
       getPayloadLength
       print
       dump

CONSTANTS

       Load them: use Net::Frame::Layer::NULL qw(:consts);

       NF_NULL_TYPE_IPv4
       NF_NULL_TYPE_ARP
       NF_NULL_TYPE_CGMP
       NF_NULL_TYPE_80211
       NF_NULL_TYPE_DDP
       NF_NULL_TYPE_AARP
       NF_NULL_TYPE_WCP
       NF_NULL_TYPE_8021Q
       NF_NULL_TYPE_IPX
       NF_NULL_TYPE_STP
       NF_NULL_TYPE_IPv6
       NF_NULL_TYPE_WLCCP
       NF_NULL_TYPE_PPPoED
       NF_NULL_TYPE_PPPoES
       NF_NULL_TYPE_8021X
       NF_NULL_TYPE_AoE
       NF_NULL_TYPE_LLDP
       NF_NULL_TYPE_LOOP
       NF_NULL_TYPE_VLAN
       NF_NULL_TYPE_ETH
           Various supported encapsulated layer types.

SEE ALSO

       Net::Frame::Layer

AUTHOR

       Patrice <GomoR> Auffret

COPYRIGHT AND LICENSE

       Copyright (c) 2006-2014, Patrice <GomoR> Auffret

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