Hi, I am trying to access the tot_len field in the IP Header using a sk_buff structure inside a Netfilter hook. I do something like: (**skb).nh.iph->tot_len += 64 I have tried other variants of the same statement but none of them work. I want to increment the length by 64 bytes, but it gives me an error saying that I am trying to access an 'incomplete data type'. Can anyone shed some light on this problem? tot_len if of type __u16 (unsigned short int). Thanks. - Akshay - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html