SYNOPSIS

use Net::Frame::Layer::ARP qw(:consts);
# Build a layer
my $layer = Net::Frame::Layer::ARP->new(
hType => NF_ARP_HTYPE_ETH,
pType => NF_ARP_PTYPE_IPv4,
hSize => NF_ARP_HSIZE_ETH,
pSize => NF_ARP_PSIZE_IPv4,
opCode => NF_ARP_OPCODE_REQUEST,
src => '00:00:00:00:00:00',
dst => NF_ARP_ADDR_BROADCAST,
srcIp => '127.0.0.1',
dstIp => '127.0.0.1',
);
$layer->pack;
print 'RAW: '.$layer->dump."\n";
# Read a raw layer
my $layer = Net::Frame::Layer::ARP->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 ARP layer.

RFC: ftp://ftp.rfc-editor.org/in-notes/rfc826.txt

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

ATTRIBUTES

hType

pType

Hardware and protocol address types.

hSize

pSize

Hardware and protocol address sizes in bytes.

opCode

The operation code number to perform.

src

dst

Source and destination hardware addresses.

srcIp

dstIp

Source and destination IP addresses.

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.

getKey

getKeyReverse

These two methods are basically used to increase the speed when using recv method from Net::Frame::Simple. Usually, you write them when you need to write match method.

match (Net::Frame::Layer::ARP object)

This method is mostly used internally. You pass a Net::Frame::Layer::ARP layer as a parameter, and it returns true if this is a response corresponding for the request, or returns false if not.

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::ARP qw(:consts);

NF_ARP_HTYPE_ETH

Hardware address types.

NF_ARP_PTYPE_IPv4

NF_ARP_PTYPE_IPv6

Protocol address types.

NF_ARP_HSIZE_ETH

Hardware address sizes.

NF_ARP_PSIZE_IPv4

NF_ARP_PSIZE_IPv6

Protocol address sizes.

NF_ARP_OPCODE_REQUEST

NF_ARP_OPCODE_REPLY

Operation code numbers.

NF_ARP_ADDR_BROADCAST

Broadcast address for src or dst attributes.

AUTHOR

Patrice <GomoR> Auffret

COPYRIGHT AND LICENSE

Copyright (c) 2006-2015, Patrice <GomoR> Auffret

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