UNIX for Dummies Questions & Answers

hello All,

I am not heavily conversant with *nix, so few of you may find the question to be naive.

Question : Will *nix Kernel process packets not originating from a loopback interface, but received on a loopback interface?

Scenario:
I have an application running which can strip packets of encapsulation , now once the packet is just IPv4 packet , I am trying to reprogram this application to hand over the packet-payload(IPV4 packet) back to network stack for IP routing.
How can I get this done?
Can I create a sockets to loopback interface and send the packet-payload(IPV4 packet) to the loopback interface? Will the kernel accept such packets to originating from loopback interface and still process it?

---------- Post updated 04-22-14 at 03:37 PM ---------- Previous update was 04-21-14 at 09:11 PM ----------

Bumping the thread , in hope of help

What Unix are you using? On Solaris you could insert a custom module to the network stack, using "ifconfig modinsert".

I am using Ubuntu.