I have been getting 'Operation not permitted' errors when I try to send packets to any of the four network cards on my box after about 20 hours of uptime. From a warm or cold boot, everything works fine, then after about 20 hours, it errors out on maybe 1% of the packets then within another hour it works its way up to 90% or more. I have had this problem with both the 2.4.17 and the 2.4.16 kernels. I have not had this problem at all with the previos kernel 2.2.16. I have the box setup to do NAT on two of the cards with iptables. -Neil Whelchel- First Light Internet Services 818 989-7878 - We don't do Window$, that's what the janitor is for - - : 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