NAME

Net::Frame::Layer::HSRP - Hot Standby Router Protocol layer object

SYNOPSIS

   use Net::Frame::Simple;
   use Net::Frame::Layer::HSRP qw(:consts);

   my $layer = Net::Frame::Layer::HSRP->new(
      version   => NF_HSRP_VERSION_1,
      opcode    => NF_HSRP_OPCODE_HELLO,
      state     => NF_HSRP_STATE_STANDBY,
      helloTime => 3,
      holdTime  => 10,
      priority  => 100,
      group     => 1,
      reserved  => 0,
      authData  => "cisco\0\0\0",
      virtualIp => '127.0.0.1',
   );

   #
   # Read a raw layer
   #

   my $layer = Net::Frame::Layer::HSRP->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 HSRP layer.

RFC: ftp://ftp.rfc-editor.org/in-notes/rfc2281.txt

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

ATTRIBUTES

version

HSRP protocol version. See CONSTANTS for more information.

opcode

HSRP opcode. See CONSTANTS for more information.

state

HSRP state. See CONSTANTS for more information.

helloTime

Default set to 3.

holdTime

Default set to 10.

priority

Default set to 100.

group

HSRP group.

reserved

authData

Clear text authentication data. Default set to "cisco\0\0\0".

virtualIp

HSRP virtual IP.

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 overriden in this layer, and some others may not be meaningful in this layer. See Net::Frame::Layer for more information.

layer

computeLengths

pack

unpack

encapsulate

getLength

getPayloadLength

print

dump

CONSTANTS

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

NF_HSRP_ALLHSRPRTRS_MAC

Default Layer 2 destination addresses.

NF_HSRP_ALLHSRPRTRS

Default Layer 3 destination addresses.

NF_HSRP_UDP_PORT

Default UDP port.

NF_HSRP_VERSION_1

HSRP version.

NF_HSRP_OPCODE_HELLO

NF_HSRP_OPCODE_COUP

NF_HSRP_OPCODE_RESIGN

HSRP opcodes.

NF_HSRP_STATE_INITIAL

NF_HSRP_STATE_LEARN

NF_HSRP_STATE_LISTEN

NF_HSRP_STATE_SPEAK

NF_HSRP_STATE_STANDBY

NF_HSRP_STATE_ACTIVE

HSRP states.

LIMITATIONS

Currently only supports HSRP version 1.

SEE ALSO

Net::Frame::Layer

AUTHOR

Michael Vincent

COPYRIGHT AND LICENSE

Copyright (c) 2013, Michael Vincent

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