when configuring a new TAP interface on VPP using e.g. “sudo vppctl tap connect testTap hwaddr 00:00:00:00:35:03”, the TAP port is created even on Linux side, but with different MAC address that I have set in the command. I thought that if I set this mac address “00:00:00:00:35:03” through the command that this would be the mac address of the Linux TAP interface, but different MAC address was generated for this interface. See the result of “sudo ifconfig” command:

csit@dut1:~$ sudo ifconfig testTap
testTap Link encap:Ethernet HWaddr 3a:c1:ee:d4:7d:c0
inet6 addr: fe80::38c1:eeff:fed4:7dc0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:0 (0.0 B) TX bytes:648 (648.0 B)