udevadm control --reload-rules
Check this file: /etc/udev/rules.d/70-persistent-net.rules
in: /etc/udev/rules.d/70-persistent-net.rules do something like # PCI device 0x1022:0x2000 (pcnet32) SUBSYSTEM=="net", DRIVERS=="?*", KERNELS=="0000:00:11.0", NAME="eth0" # PCI device 0x1022:0x2000 (pcnet32) SUBSYSTEM=="net", DRIVERS=="?*", KERNELS=="0000:00:12.0", NAME="eth1" Note that in KERNELS is the lspci for the nic.