You can force the interface name by using device hints.
Edit device.hints from the shell and edit (or create) the file /boot/device.hints
Add entries to bind the MAC address to a specific device name.
Example: To make a specific Intel card (igb0) always be lan0:
hint.igb.0.mac="00:11:22:33:44:55"
hint.igb.0.name="lan0"
This will keep the interface names identical between your boxes.
Edit device.hints from the shell and edit (or create) the file /boot/device.hints
Add entries to bind the MAC address to a specific device name.
Example: To make a specific Intel card (igb0) always be lan0:
hint.igb.0.mac="00:11:22:33:44:55"
hint.igb.0.name="lan0"
This will keep the interface names identical between your boxes.
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