The
disc
interface is a software discard mechanism which may be
used for performance analysis and/or software testing.
As with other network interfaces, the discard interface must have
network addresses assigned for each address family with which it is to be used.
These addresses
may be set or changed with the
SIOCSIFADDR
ioctl(2).
Each
disc
interface is created at runtime using interface cloning.
This is
most easily done with the
ifconfig(8)
create
command or using the
cloned_interfaces
variable in
rc.conf(5).
