hi, i have made an application that reads using libipq functions, and a kernel module which delivers packet to it. I catch packets originating from the local machine, and in my user space libipq application i change the packet (that i get using ipq_read), set its mark field, change src/dest and then finally return a return code of NF_ACCEPT, so this changed packet should go back to the kernel right ?, (this packet i had caught in local_out hook). Once i inject this packet, i expect the same apcket(with changed ip and all) to hit post routing, so in my post routing hook function i wait for a packet with skb->nfmark==some value, but this packet doesnt seem to be getting caught at post_routing ?? any clues ? thanks Amit