NAME

Net::DHCP::Packet - Object methods to create a DHCP packet.

SYNOPSIS

    use Net::DHCP::Packet;
	use strict;

	my $p = new Net::DHCP::Packet('Chaddr' => '0??BCDEF', 
				'Xid' => hex(0x9F0FD),
				'Ciaddr' => '0.0.0.0',
				'Siaddr' => '0.0.0.0', 'Hops' => 0);

DESCRIPTION

Represents a DHCP packet as specified in RFC 1533, RFC 2132.

CONSTRUCTORS

new

discover

request

decline

release

METHODS

op(BYTE opcode)

Sets the opcode in the BOOTP type.
Without argument, returns the BOOTP type.
Argument is either:
Net::DHCP::Packet::BOOTREQUEST() 	{ pack('C',0x1) }
Net::DHCP::Packet::BOOTREPLY() 	{ pack('C',0x2) }

htype(BYTE hardware address type)

Ex. '1' = 10mb ethernet

hlen(BYTE hardware address length)

For most NIC's, the MAC address has 6 bytes.

hops(BYTE number of hops)

This field is incremented by each encountered DHCP relay agent.	

xid(C4 transaction id)

4 byte transaction id.

secs(SHORT elapsed boot time)

2 bytes for elapsed boot time.

flags(SHORT)

2 bytes. 
0x0000 = No broadcasts.
0x1000 = Broadcasts.

ciaddr(IP address)

IP address is an ascci string like '10.24.50.3'.

yiaddr(IP address)

siaddr(IP address)

giaddr(IP address)

chaddr(MAC address) Hexadecimal string represenatation. Example: "0010A706DFFF" for 6 bytes mac address.

sname(C64 servername)

Optional 64 bytes null terminated string with server host name.

file(C128 bootfilename)

Optional

options(REF Net::DHCP::Options)

Argument is reference to a Net::DHCP::Options object.
Without argument, returns the Options object.

addOption($type, $value)

getOption($type)

new(%ARGS)

The hash %ARGS  can contain any of these keys:
Op, Htype, Hlen, Hops, Xid, Secs, Flags, Ciaddr, Yiaddr, Siaddr, 
Giaddr, Chaddr, Sname, File

discover

DHCP discover packet

request

DHCP request packet

decline

DHCP decline packet

release

DHCP release packet

serialize

Converts a Net::DHCP::Packet to a string, ready to put on the network.

marshall(string)

The inverse of serialize. Converts a string, presumably a 
received UDP packet, into a Net::DHCP::Packet.

toString()

Returns a textual representation of the packet, for debugging.

AUTHOR

F. van Dun

BUGS

I only ran some simple tests on Windows 2000 with a W2K DHCP server and a USR DHCP server. Not yet tested on Unix platform.

COPYRIGHT

This is free software. It can be distributed and/or modified under the same terms as Perl itself.

SEE ALSO

perl(1), Net::DHCP::Options.