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Problem in registering new netfilter target module

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Old 11-09-2005
Problem in registering new netfilter target module
Friends I'm facing a big problem trying to extend the netfilter. Somone please help me with your quick reply (any hint) as I've to meet a deadline.

My problem is that I've written a new netfilter target module and its corresponding userspace program for iptables to change the packet type of a packet. I compiled the iptables and kernel without any error and installed this new kernel (with newly compiled parameters) in my boot partition.

Next when I booted into this kernel and tried using this target it gives error "invalid argument" which I think is coming because the target module is not geting loaded (as on failure it returns EINVAL).

Now can anyone tell me what may b the problem.
I think I can summarise my problem as what can b pozbl. reasons for which any kernel module not get registered.
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LEARN ABOUT DEBIAN

netstat-nat

netstat-nat(1)						      General Commands Manual						    netstat-nat(1)

NAME

       netstat-nat - Show the natted connections on a linux iptable firewall

SYNOPSIS

       netstat-nat [options]

DESCRIPTION

       netstat-nat Displays NAT connections managed by netfilter/iptables which comes with the > 2.4.x linux kernels.

       The  program  reads  its information from '/proc/net/ip_conntrack' or '/proc/net/nf_conntrack', which is the temporary conntrack-storage of
       netfilter.

OPTIONS

       -h     displays help

       -n     don't resolve IPs/portnumbers to host/portnames

       -p <protocol>
	      display NAT connections with protocol selection (see /etc/protocols)

       -s <source host>
	      display connections by source IP/hostname

       -d <destination host>
	      display connections by destination IP/hostname

       -S     display SNAT connections

       -D     display DNAT connections

       -L     display only connections to NAT box self (doesn't show SNAT & DNAT)

       -R     display only connections routed through the NAT box (doesn't show SNAT & DNAT)

       -x     extended view of hostnames

       -r <src|dst|src-port|dst-port|state>
	      sort connections

       -o     no output header

       -N     display NAT box connection information (only valid with SNAT & DNAT)

       -v     prints version

FILES

       /proc/net/ip_conntrack or /proc/net/nf_conntrack

SEE ALSO

       http://www.tweegy.nl/projects/netstat-nat/
       http://www.netfilter.org/

AUTHOR

       netstat-nat has been written by D.Wijsman danny@tweegy.nl
       The manual page has been written by marceln@xs4all.nl

								     July 2002							    netstat-nat(1)