--- bunty <bunty123_4@rediffmail.com> wrote: > one last thing i want to know that is kernel > allocates total size of all tcp/ip layer headers + > data at start of building packet headers? If yes > where can i find that line in kernel source? In the ip_queue_xmit(), the skb_push function is called which introduces the IP header, and the function tcp_transmit_skb() introduces the TCP header. ===== Regards, Kiran Kumar Immidi __________________________________ Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs http://hotjobs.sweepstakes.yahoo.com/careermakeover -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/