Binary package “br2684ctl” in ubuntu trusty

Utility for configuring RFC 2684 ATM/Ethernet bridging

 ATM bridging is a way to extend Ethernet over an ATM network and is
 mainly used for DSL connections. This package contains the user space
 utility needed to configure the kernel driver.
 .
 This package is needed if you own an USB DSL modem and your connection
 uses one of these protocols: RFC 1483 bridged (RFC 2684 bridged),
 RFC 1483 bridged (RFC 2684 routed), PPP over Ethernet (PPPoE).