hi, I have a doubt regarding the NF_IP_LOCAL_OUT hook, suppose i use libnet to inject some packets into the kernel ..... the dest ip address of this packet is my own linux box( the same box that is injecting those packet). Now, the netfilter NF_IP_LOCAL_OUT hook catches those packets, and the routing decision is taken after this hook is passed, what happens after this, since these packets are destined to this machine, do these packets go to the wire then again the ethernet card of this machine catches these packets (i.e a new sk_buff is again assigned for them etc) or do they retain their old sk_buff and are directly sent to the application waiting for them ? diagram wld help ip_packet(dest add==ip addr of this machine) ----> NF_IP_LOCAL_OUT hook --->routing decision --> wire(old sk_buff freed) --> ethernet card ---> new sk_buff ---> NF_IP_PRE_ROUTING hook ---> application on this machine waiting for this packet.(as part of this new sk_buff) or, ip_packet(dest add==ip addr of this machine) ----> NF_IP_LOCAL_OUT hook --->routing decision -->application on this machine waiting for this packet (as part of its old sk_buff itself) thanks Amit "DISCLAIMER: This message is proprietary to Hughes Software Systems Limited (HSS) and is intended solely for the use of the individual to whom it is addressed. It may contain privileged or confidential information and should not be circulated or used for any purpose other than for what it is intended. If you have received this message in error, please notify the originator immediately. If you are not the intended recipient, you are notified that you are strictly prohibited from using, copying, altering, or disclosing the contents of this message. HSS accepts no responsibility for loss or damage arising from the use of the information transmitted by this email including damage from virus."
