On Wed, 7 Mar 2007 10:53:12 +0100
Simone84bo <simone84bo@email.it> wrote:

> Hi all,
> Can someone say me the theoretic way of packet in the kernel.

Perhaps this diagram can help you:

	http://l7-filter.sourceforge.net/PacketFlow.png

I'll attach another one in asciiart I picked from somewhere (maybe
this list itself).


> When the packet will be send to a IMQ device?
> When the packet arrives to post routing time?
> When operation of NAT occur? befor or later that the packet will send
> to net device?

When loading imq module, my kernel says:

	IMQ starting with 2 devices...
	IMQ driver loaded successfully.
	        Hooking IMQ before NAT on PREROUTING.
	        Hooking IMQ after NAT on POSTROUTING.


This is the default option, but you can choose from all 4 options at
compile time:

	CONFIG_IMQ=m
	# CONFIG_IMQ_BEHAVIOR_AA is not set
	# CONFIG_IMQ_BEHAVIOR_AB is not set
	CONFIG_IMQ_BEHAVIOR_BA=y
	# CONFIG_IMQ_BEHAVIOR_BB is not set