Copyright (c) 1983 Regents of the University of California.
All rights reserved. The Berkeley software License Agreement
specifies the terms and conditions for redistribution.
@(#)lo.4 5.1 (Berkeley) 05/15/85
All rights reserved. The Berkeley software License Agreement
specifies the terms and conditions for redistribution.
@(#)lo.4 5.1 (Berkeley) 05/15/85
LO 4 "26 March 1982"
C 5 NAME
lo - software loopback network interface
SYNOPSIS
pseudo-device loop DESCRIPTION
The
loop interface is a software loopback mechanism which may be
used for performance analysis, software testing, and/or local
communication. By default, the loopback interface is
accessible at address 127.0.0.1 (non-standard); this address
may be changed with the SIOCSIFADDR ioctl.
DIAGNOSTICS
lo%d: can't handle af%d. The interface was handed
a message with addresses formatted in an unsuitable address
family; the packet was dropped.
SEE ALSO
intro(4N), inet(4F)
BUGS
It should handle all address and protocol families.
An approved network address should be reserved for this
interface.