| DISC(4) | Device Drivers Manual | DISC(4) |
disc — software
discard network interface
device disc
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).
The disc device appears to have been
derived from the lo(4) device around the time of
4.4BSD. This manpage was adapted from
lo(4) and first appeared in FreeBSD
5.0.
| May 25, 2002 | Debian |