Net::Packet::CDP.3pm

Langue: en

Version: 2006-11-23 (mandriva - 01/05/08)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

Net::Packet::CDP - Cisco Discovery Protocol layer 4 object

SYNOPSIS

    use Net::Packet::Consts qw(:cdp);
    require Net::Packet::CDP;
 
    # Build a layer
    my $layer = Net::Packet::CDP->new(
       version  => 2,
       ttl      => 180,
       checksum => 0,
    );
    $layer->pack;
 
    print 'RAW: '.unpack('H*', $layer->raw)."\n";
 
    # Read a raw layer
    my $layer = Net::Packet::CDP->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 Cisco Discovery Protocol layer.

See also Net::Packet::Layer and Net::Packet::Layer4 for other attributes and methods.

ATTRIBUTES

version - 8 bits
ttl - 8 bits
checksum - 16 bits
typeDeviceId
typeAddresses
typePortId
typeCapabilities
typeSoftwareVersion
All these type attributes keep a pointer to the respective object. That is, for typeDeviceId, you have a pointer to a Net::Packet::CDP::TypeDeviceId object, if applicable.

METHODS

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

version: 2

ttl: 180

checksum: 0

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(:cdp);
NP_CDP_HDR_LEN
CDP header length.
NP_CDP_TYPE_DEVICE_ID
NP_CDP_TYPE_ADDRESSES
NP_CDP_TYPE_PORT_ID
NP_CDP_TYPE_CAPABILITIES
NP_CDP_TYPE_SOFTWARE_VERSION
NP_CDP_TYPE_PLATFORM
NP_CDP_TYPE_VTP_MANAGEMENT_DOMAIN
NP_CDP_TYPE_DUPLEX
NP_CDP_TYPE_VOIP_VLAN_REPLY
NP_CDP_TYPE_TRUST_BITMAP
NP_CDP_TYPE_UNTRUSTED_PORT_COS
NP_CDP_TYPE_SYSTEM_NAME
NP_CDP_TYPE_SYSTEM_OBJECT_ID
NP_CDP_TYPE_LOCATION
Various supported CDP types.

AUTHOR

Patrice <GomoR> Auffret Copyright (c) 2004-2006, Patrice <GomoR> Auffret

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

NetPacket, Net::RawIP, Net::RawSock