#first card for internet was enp6s7 mac 00:11:43:d4:d4:cd
SUBSYSTEM=="net", ACTION=="add", ATTR{address}=="00:11:43:d4:d4:cd",KERNEL=="enp6s7", NAME="eth0"
#second card for dhcp server lan was enp7s8 mac 00:11:43:d4:d4:ce
SUBSYSTEM=="net", ACTION=="add", ATTR{address}=="00:11:43:d4:d4:ce",KERNEL=="enp7s8", NAME="eth1"

#this was used for future SUBSYSTEM=="net", ACTION=="add", ATTR{address}=="", NAME=""
#after your mac:address" you may need to put ,KERNEL=="what the original name was",