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Man Pages


Manual Reference Pages  -  NET::PACKET::ARP (3)

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NAME

Net::Packet::ARP - Address Resolution Protocol layer 3 object

CONTENTS

SYNOPSIS



   use Net::Packet::Consts qw(:arp);
   require Net::Packet::ARP;

   # Build a layer
   my $layer = Net::Packet::ARP->new(
      dstIp => "192.168.0.1",
   );
   $layer->pack;

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

   # Read a raw layer
   my $layer = Net::Packet::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 <B>Net::Packet::LayerB> and <B>Net::Packet::Layer3B> for other attributes and methods.

ATTRIBUTES

<B>hTypeB>
<B>pTypeB> Hardware and protocol address types.
<B>hSizeB>
<B>pSizeB> Hardware and protocol address sizes in bytes.
<B>opCodeB> The operation code number to perform.
<B>srcB>
<B>dstB> Source and destination hardware addresses.
<B>srcIpB>
<B>dstIpB> Source and destination IP addresses.

METHODS

<B>newB> Object constructor. You can pass attributes that will overwrite default ones. Default values:

hType: NP_ARP_HTYPE_ETH

pType: NP_ARP_PTYPE_IPv4

hSize: NP_ARP_HSIZE_ETH

pSize: NP_ARP_PSIZE_IPv4

opCode: NP_ARP_OPCODE_REQUEST

src: $Env->mac

dst: NP_ARP_ADDR_BROADCAST

srcIp: $Env->ip

dstIp: 127.0.0.1

<B>packB> Packs all attributes into a raw format, in order to inject to network. Returns 1 on success, undef otherwise.
<B>unpackB> Unpacks raw data from network and stores attributes into the object. Returns 1 on success, undef otherwise.
<B>recvB> Will search for a matching replies in <B>framesSortedB> or <B>framesB> from a <B>Net::Packet::DumpB> object.
<B>isRequestB>
<B>isReplyB> Returns 1 if the <B>opCodeB> attribute is of specified type.

CONSTANTS

Load them: use Net::Packet::Consts qw(:arp);
<B>NP_ARP_HTYPE_ETHB>
<B>NP_ARP_PTYPE_IPv4B> Hardware and protocol address types.
<B>NP_ARP_HSIZE_ETHB>
<B>NP_ARP_PSIZE_IPv4B> Hardware and protocol address sizes.
<B>NP_ARP_OPCODE_REQUESTB>
<B>NP_ARP_OPCODE_REPLYB> Operation code numbers.
<B>NP_ARP_ADDR_BROADCASTB> Broadcast address for <B>srcB> or <B>dstB> attributes.

AUTHOR

Patrice <GomoR> Auffret

COPYRIGHT AND LICENSE

Copyright (c) 2004-2009, Patrice <GomoR> Auffret

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

POD ERRORS

Hey! <B>The above document had some coding errors, which are explained below:B>
Around line 155: Non-ASCII character seen before =encoding in ’# Build’. Assuming ISO8859-1
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perl v5.20.3 NET::PACKET::ARP (3) 2009-11-09

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