noob port group question

Hi fellas,

I has just installed a esxi 6.5 on an old box.

and vm centos 7 was also installed.

something wrong happened.

inside the vm, it shows three different mac for different interfaces, same also on esxi vm hardware configuration tab.

however, on the vswitch, all the port groups see one identical mac.

could someone she some light?

Thanks.

Ryan