Net::Packet::VLAN - 802.1Q layer 3 object
use Net::Packet::Consts qw(:vlan); require Net::Packet::VLAN; # Build a layer my $layer = Net::Packet::VLAN->new( priority => 0, cfi => 0, id => 0, type => NP_VLAN_TYPE_IPv4, ); $layer->pack; print 'RAW: '.unpack('H*', $layer->raw)."\n"; # Read a raw layer my $layer = Net::Packet::VLAN->new(raw => $raw); print $layer->print."\n"; print 'PAYLOAD: '.unpack('H*', $layer->payload)."\n" if $layer->payload;
This modules implements the encoding and decoding of the Virtual LAN/802.1Q layer.
Details: http://standards.ieee.org/getieee802/802.1.html
See also Net::Packet::Layer and Net::Packet::Layer3 for other attributes and methods.
The priority field.
The cfi field. It is only one bit long, so set it to 0 or 1.
VLAN tag id. You'll love it.
Which type the next encapsulated layer is.
This is a Net::Packet::Frame object, built it like any other such frame. Just to mention that you should use dnoFexLien attribute if you put in a Net::Packet::IPv4 layer.
Object constructor. You can pass attributes that will overwrite default ones. Default values:
priority: 0
cfi: 0
id: 0
type: NP_VLAN_TYPE_IPv4
Packs all attributes into a raw format, in order to inject to network. Returns 1 on success, undef otherwise.
Unpacks raw data from network and stores attributes into the object. Returns 1 on success, undef otherwise.
Helper methods. Return true is the encapsulated layer is of specified type, false otherwise.
Load them: use Net::Packet::Consts qw(:vlan);
Various supported encapsulated frame types.
Patrice <GomoR> Auffret
Copyright (c) 2004-2015, Patrice <GomoR> Auffret
You may distribute this module under the terms of the Artistic license. See LICENSE.Artistic file in the source distribution archive.
NetPacket, Net::RawIP, Net::RawSock
To install Net::Packet, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Net::Packet
CPAN shell
perl -MCPAN -e shell install Net::Packet
For more information on module installation, please visit the detailed CPAN module installation guide.