I have installed Linux Mint LMDE on a PC with 2 LAN ports and a WLAN card. And I realized that there is no file “70-persistent-net.rules” in directory “/etc/udev/rules.d”. This file is important for keeping the same name of network adapters across boots. After googling for a while, I have found the solution on this page.
Basically what I have done was executing this command:
$ sudo udevadm trigger --action=add