centos 7 bridge добавлено пользователем Keksopatolog. permanent link
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Networking_Guide/sec-Network_Bridging_Using_the_Command_Line_Interface.html#sec-Create_a_Network_Bridge
CalcScript v. 1.1
Author: mdma special for #linux channel on RusNet. 2011