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disc

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									DISC (4)                                 BSD Kernel Interfaces Manual                                  DISC (4)



NAME
    disc — software discard network interface

SYNOPSIS
    device disc

DESCRIPTION
    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).

SEE ALSO
     inet(4), intro(4)

HISTORY
     The disc device appears to have been derived from the lo(4) device around the time of 4.4 BSD. This man-
     page was adapted from lo(4) and first appeared in FreeBSD 5.0.




BSD                                              May 25, 2002                                                 1

								
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