> Essentially, does there exist a configuration (hardware + software) > that can handle a 1Gb link on it's own including dealing with a (D)DoS > attack at link speed, so ~1.5Mpps. Have a look at Carrier Grade Linux and its deterministic forwarding requirement. If they really address this point and write actual code, you might reach 1Mpps+ performance even with random source/destination addresses. - : 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