Brian, my RH 7.3 is running kernel 2.4.18-3.  When you upgraded the
kernel did you rebuild & install the modules?  That's the sticky part
that generally makes me put off kernel upgrades for way too long :-)

Steve

> Any idea why iptables will not work with the default Redhat kernel?
> 
> This is what I get... thanks for your help in advance!
> 
> /lib/modules/2.4.18-10/kernel/net/ipv4/netfilter/ip_tables.o: init_module: Device or resource busy
> /lib/modules/2.4.18-10/kernel/net/ipv4/netfilter/ip_tables.o: insmod /lib/modules/2.4.18-10/kernel/net/ipv4/netfilter/ip_tables.o failed
> /lib/modules/2.4.18-10/kernel/net/ipv4/netfilter/ip_tables.o: insmod ip_tables failed
> iptables v1.2.5: can't initialize iptables table `filter': iptables who? (do you need to insmod?)