Firewall Error

["Paul & Tisha Sinclair" <ptams@earthlink.net>]

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Hello, 
 
       My name is Paul and I have a problem I would like to know if you
can fix my error. 
This is error I received when I try to open a port. {An error occured
when checking your current IPtables configuration : 
/lib/modules/2.4.18-3smp/kernel/net/ipv4/netfilter/ip_tables.o:
init_module: Device or resource busy
/lib/modules/2.4.18-3smp/kernel/net/ipv4/netfilter/ip_tables.o: insmod
/lib/modules/2.4.18-3smp/kernel/net/ipv4/netfilter/ip_tables.o failed
/lib/modules/2.4.18-3smp/kernel/net/ipv4/netfilter/ip_tables.o: insmod
ip_tables failed
Hint: insmod errors can be caused by incorrect module parameters,
including invalid IO or IRQ parameters
iptables v1.2.5: can't initialize iptables table `filter': iptables who?
(do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.
This may indicate that your kernel does not support IPtables.}.
                                                Running 7.2 Redhat
I would like to open a port but I get this message. Please see if you
have any suggestion. 
 
Thanks
Paul

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