Net::Packet::IPv6

Section: User Contributed Perl Documentation (3pm)
Updated: 2009-11-09
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NAME

Net::Packet::IPv6 - Internet Protocol v6 layer 3 object

SYNOPSIS

   use Net::Packet::Consts qw(:ipv6);
   require Net::Packet::IPv6;

   # Build a layer
   my $layer = Net::Packet::IPv6->new(
      dst => $hostname6,
   );
   $layer->pack;

   print 'RAW: '.unpack('H*', $layer->raw)."\n";

   # Read a raw layer
   my $layer = Net::Packet::IPv6->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 IPv6 layer.

RFC: ftp://ftp.rfc-editor.org/in-notes/rfc2460.txt

See also Net::Packet::Layer and Net::Packet::Layer3 for other attributes and methods.

ATTRIBUTES

version: Version of Internet Protocol header.
trafficClass: Traffic class field. Was Type of Service in IPv4.
flowLabel: Flow label class field. Was IP ID in IPv4.
nextHeader: The type of next header. Was protocol in IPv4.
protocol: Is an alias for nextHeader
payloadLength: Length in bytes of encapsulated layers (that is, layer 4 + layer 7).
hopLimit: Was TTL field in IPv4.
src
dst: Source and destination addresses.

METHODS

new

Object constructor. You can pass attributes that will overwrite default ones. Default values:

version: 6

trafficClass: 0

flowLabel: 0

nextHeader: NP_IPv6_PROTOCOL_TCP

hopLimit: 0xff

src: $Env->ip6

dst: '::1'

getPayloadLength

Returns the length in bytes of encapsulated layers (that is layer 4 + layer 7).

pack

Packs all attributes into a raw format, in order to inject to network. Returns 1 on success, undef otherwise.

unpack

Unpacks raw data from network and stores attributes into the object. Returns 1 on success, undef otherwise.

CONSTANTS

Load them: use Net::Packet::Consts qw(:ipv6);

NP_IPv6_PROTOCOL_TCP
NP_IPv6_PROTOCOL_UDP: Constants for nextHeader attribute.

AUTHOR

Patrice <GomoR> Auffret

COPYRIGHT AND LICENSE

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

RELATED MODULES

NetPacket, Net::RawIP, Net::RawSock

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