I just installed a fresh Redhat 7.3 on my box and am attempting to use
iptable's nat features to create a home NAT. Various how-to's all
indicate that I need to run `modprobe iptable_nat`, but when I do so, I
get the following errors:
# modprobe iptable_nat
init_module: Device or resource busy
Hint: insmod errors can be caused by incorrect module parameters,
including invalid IO or IRQ parameters
I have absolutely no idea what these errors mean much less a clue about
how to fix this.
At first I assumed it was related to the drivers of one ethernet cards
I'm using. However, I was able to get NAT running using ipchains so now
I'm even more puzzled.
Anyone have any ideas?