why not try tcpdump or hardware sniffer onm the lan itself. -----Original Message----- From: netfilter-bounces@xxxxxxxxxxxxxxxxxxx [mailto:netfilter-bounces@xxxxxxxxxxxxxxxxxxx]On Behalf Of Jason Opperisano Sent: Tuesday, November 30, 2004 12:42 PM To: netfilter@xxxxxxxxxxxxxxxxxxx Subject: Re: problem with hook function for DHCP On Mon, Nov 29, 2004 at 11:58:44PM -0800, Subhash Gopinath wrote: > Hello all, > > I am facing problems capturing DHCP packets sent from a client to a server.... > Basically, the hook function (defined below) is not getting called for > each packet going out of the system.. Any ideas ? my idea: DHCP packets are generated and processed at the BPF layer (which is below netfilter in the stack); and never pass through any netfilter hooks. -j -- "Default! The two sweetest words in the English language!" --The Simpsons