brctl
brctl
TLDR
Show a list with information about currently existing ethernet bridges
$ sudo brctl show
Create a new ethernet bridge interface
$ sudo brctl add [bridge_name]
Delete an existing ethernet bridge interface
$ sudo brctl del [bridge_name]
Add an interface to an existing bridge
$ sudo brctl addif [bridge_name] [interface_name]
Remove an interface from an existing bridge
$ sudo brctl delif [bridge_name] [interface_name]