Hi Miguel, On Wed, Nov 07, 2012 at 04:38:54PM -0600, Miguel Alejandro González wrote: > Hello > > I have a netfilter module on the mangle table PREROUTING... I want to > validate unexpired routes in ipv4 headers, but I think the TCP/IP > stack already does this... because it is mentioned on the rfc 1812 so > I'm guessing it is already implemented by the kernel > > but somehow my module catches the packet first before the kernel does > its magic... > > As I understand the picture I'm attaching represents the whole process > the TCP/IP stack performs to handle the options in a IPv4 packet, but > I still don't understand how netfilter works with the stack This is rather old, but it helps to provide the big picture: http://open-source.arkoon.net/kernel/kernel_net.png > Do I have to process the packet's options in my module or what? I think it's better if you try to explain what you're trying to do with your new extension. That may help to attract people to help you. -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
