I was hoping someone could possibly shed some light into this or at least point me to the right direction... I am trying to develop a kernel module level solution for dynamic host multihoming. This requires that I mangle packets from specific applications running on the system right in the stack and basically change the interface the packets are sent from (at least two interfaces). I understand that I need to register my mangling function with one of the 5 netfilter hooks (the ROUTING one?), grab the interesting packets and change..... something in the skbuff. What really evades me is where/when does routing *exactly* happen. If I know at which point it happens, I should tap right after it and change the interface to the one I want. Or this whole idea could be bad and I end up breaking something in the packet and it gets dropped... Of course, that needs to happen for both locally generated traffic and incoming traffic, so that I link the incoming packets to the right applications. regards, JC
