> On Oct 27, 2016, at 6:33 AM, Padam Jeet Singh <padam.singh at inventum.net> > wrote: > > Hi, > > I am crafting a packet in which the source MAC address as set in the Ethernet > header is different than the transmit port?s default MAC address. A packet > capture of the packets coming out of this port however comes with source MAC > address of the port?s default MAC address. > > Altering the destination MAC address works fine and shows up correctly in > packet capture. > > The underlying network interface is an i210 and some logs added to the > eth_igb_xmit_pkts function show that the packets I have crafted indeed are > reaching the driver with the source MAC address set in the packet code of the > application. > > How can I disable this automatic source MAC address setting?
The packets sent with rte_eth_tx_burst() are not forced to a give MAC address. If you are using something on top of DPDK like Pktgen or OVS or something, then it may try to force a source MAC address. Maybe the hardware does it, but we need to know the NIC being used and then someone maybe able to answer. I do not know of any Intel NICs do that. Is this what you are doing. > > Thanks, > Padam Regards, Keith
