Hi all, I built my own sk_buff and sent it out. When I use tcpdump to monitor network, I saw something like this happened: 15:09:37.701816 truncated-ip-26 bytes missing! 140.114.89.65 -> 140.114.89.70: ip 26 And then I searched website; finally I saw this bug report: http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=43684 Does this mean my program has no problem? Thanks for your help Best regards Yi-Wen - : 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