11-13-2008
kernel module
Hi All,
I need to develop a kernel module which changes the IP address of a package according to its mac address. It would be a sort of L2 Nat.
Somebody know if I can do this using netfilter??
Thanks.
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LEARN ABOUT DEBIAN
net::libdnet::arp
Net::Libdnet::Arp(3pm) User Contributed Perl Documentation Net::Libdnet::Arp(3pm)
NAME
Net::Libdnet::Arp - high level API to access libdnet arp_* functions
SYNOPSIS
use Net::Libdnet::Arp;
my $h = Net::Libdnet::Arp->new;
my $mac = $h->get('10.0.0.1');
my $sucess = $h->add('10.0.0.1', '00:11:22:33:44:55');
my $sucess = $h->delete('10.0.0.1', '00:11:22:33:44:55');
my $data;
$h->loop(&arp_print, $data);
sub arp_print {
my ($e, $data) = @_;
printf("%s at %s
", $e->{arp_pa}, $e->{arp_ha});
}
DESCRIPTION
This modules is a higher level abstraction for libdnet arp_* functions.
METHODS
new ()
Returns an object to access arp cache table on success, undef otherwise.
get (scalar)
Returns the mac address of specified IP address, undef otherwise.
add (scalar, scalar)
Adds an entry to arp cache table. Returns 1 on success, undef otherwise. First parameter is the IP address, second is the mac address.
delete (scalar, scalar)
Deletes an entry from arp cache table. Returns 1 on success, undef otherwise. First parameter is the IP address, second is the mac
address.
loop (subref, [ scalarref ])
Calls the specified sub ref for each entry in the arp cache table. The second optional parameter is a scalar ref, to store state
information (if any).
AUTHOR
Patrice <GomoR> Auffret
COPYRIGHT AND LICENSE
You may distribute this module under the terms of the BSD license. See LICENSE file in the source distribution archive.
Copyright (c) 2008-2011, Patrice <GomoR> Auffret
perl v5.14.2 2011-10-15 Net::Libdnet::Arp(3pm)