Hi, You want to insert packets within the kernel module thta has netfilter hooks ?, I dont thinkthat is a very good idea, as the packets u send using a libnet application wld be caught at the netfilter hooks, if the application resides on the same pc on which yr kernel module that has hook funcstions resides, then those packets will traverse, local_out, post routing, pre_routing, local_in etc based on their dest ip addresses, any packet coming from ethernet wld traverse pre_routing, then local_in or ip_forward and post_routing ..... Amit "Mayank Kumar" <mayank_kumar@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>@lists.netfilter.org on 06/29/2004 11:15:52 AM Sent by: netfilter-admin@xxxxxxxxxxxxxxxxxxx To: Amit Kumar Singh/HSS@HSS cc: <netfilter@xxxxxxxxxxxxxxxxxxx> Subject: RE: injecting new packets into the netfilter Hi Akash i know of this library. But i want to inject packets at precise hooks in the netfilter. for e.g. i want to inject packets whenever the need arises ,at the fwding hook or the post routing hook. Will the raw packets i send using the libnet get caught at hooks inserted using netfilter at various points. regds Mayank -----Original Message----- From: aksingh@xxxxxxxxxxx [mailto:aksingh@xxxxxxxxxxx] Sent: Tuesday, June 29, 2004 10:49 AM To: Mayank Kumar Cc: netfilter@xxxxxxxxxxxxxxxxxxx Subject: Re: injecting new packets into the netfilter Hi, Try libnet for injecting new packets, you can use raw packets(u inject from userland), libnet provides you with a better interface, but you wld need root permission to use raw sockets. you can get libnet library from packetfactory.net HTH Amit "Mayank Kumar" <mayank_kumar@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>@lists.netfilter.org on 06/29/2004 10:17:16 AM Sent by: netfilter-admin@xxxxxxxxxxxxxxxxxxx To: <netfilter@xxxxxxxxxxxxxxxxxxx> cc: Subject: injecting new packets into the netfilter Hi all, I want to know how can we inject absolutely new packets at various hook points in netfilter. I have already seen some questions posted on this earlier too but no replies as such. I am very eager to know about this because using this we can construct some really cool stuff. Currently we are undergoing a project on this and it would be of greate help if somebody can find a solution to this. Thanks in advance for any help on this. regds Mayank
