Hello! > manual page for sendto() I came across the following: > ENOBUFS The output queue for a network interface was full. This generally > indicates that the interface has stopped sending, but may be caused by > transient congestion. (This cannot occur in Linux, packets are just silently > dropped when a device queue overflows.) manpage says truth. You can enable receiving all the errors with setsockopt(SOL_IP, IP_RECVERR), but this requires of application to handle all the errors, which are usually hidden. Look into iputils (ping or tracepath) for examples. Alexey - : 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