Hi, Refer to RFC 2508 for Compressed RTP . This is one of the RTP header compression Technique. You can implement the compression logic in Linux Kernel code of the IP Stack. Recompile the kernel after modification. You need to change the existing ip_input.c ,ip_output.c etc.. to impelement the compression logic after IP packet formation. regards swami Andreani Luca <landreani@seltatel. To: "Linux-net (E-mail)" it> <linux-net@vger.kernel.org> Sent by: cc: linux-net-owner@vger Subject: rtp header compression .kernel.org 20/11/2002 04:48 PM Dear all, Dos anybody knows any packet/project to provide RTP header compression under linux? Thanks, Luca Andreani - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html