pktgen the linux packet generator

Abstract pktgen is a high-performance testing tool included in the Linux kernel. Being part of the kernel is currently best way to test the TX process of device driver and NIC. pktgen can also be used to generate ordinary packets to test other network devices. Especially of interest is the use of pktgen to test routers or bridges which use the Linux network stack. Because pktgen is "in-kernel", it can generate very high packet rates and with few systems saturate network devices as routers or bridges.