I want to develop an application that examines and modifies all packets in userspace. I'd like to avoid copying the data to user space and then back to the kernel after I've modified the packet when I resend them. What kernel interface can be used for doing this? - : 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