[linux-help] Kernel patch help

[Nathan <ncozzens@xxxxxxxxxxxxxxxx>]

Hello,

I'm setting up a linux box to be a bridge/firewall.
The HowTo I'm using:  http://ac2i.tzo.com/bridge_filter/.
It tells me to apply a patch to my 2.2.17 
kernel: 
http://ac2i.tzo.com/bridge_filter/linux_brfw_2.2.17.diff

I'm having trouble (since I'm new at this) and I'd 
really appreciate your help.  I've made a backup of my 
kernel, but I still don't want to screw it up.

I typed the command:  patch -p0 < 
/root/linux_brfw_2.2.17.diff

I'm getting an error message:

can't find file to patch at input line 4
Perhaps you used the wrong -p or --strip option?
The text leading up to this was:
------------------------------------
|diff -rc linux-2.2.17,orig/include/linux/firewall.h 
linux/include/linux/firewall.h
|*** linux-2.2.17,orig/include/linux/firewall.h Tue 
May 11 10:36:49 1999
|--- linux/include/linux/firewall.h Sun Oct 22 
16:32:21 2000
------------------------------------

My linux kernel is /boot/vmlinuz-2.2.17
The firewall.h file it seems to be looking for is 
located here:  usr/include/linux/

I'm just not exactly sure how to modify 
linux_brfw_2.2.17.diff to make it work properly.

I'd really appreciate your help,
Nathan 
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