Blocking ranges of ip with iptables

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Hi
~ I am trying to block a range of IP addresses using iptables, the
command I am using is :

iptables -A INPUT -m iprange --src-range $ip_addresss -m limit --limit \
~ $LOG_LIMIT --limit-burst 1 -j LOG --log-level $LOG_LEVEL \
~ --log-prefix "IP IN: $reason "

I am have issues under standing the ipt_iprange kernel module for
iptables, I don't have it loaded. I went to the netfilter CVS
repository and found 4 files relating to the kernel module:

Kconfig.ladd
Makefile.ladd
ipt_iprange.c
ipt_iprange.h

How do you make the kernel/install this kernel module please?

Thanks for your help

Paul

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