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f4d488e2 KM |
1 | .\" Copyright (c) 1983 Regents of the University of California. |
2 | .\" All rights reserved. The Berkeley software License Agreement | |
3 | .\" specifies the terms and conditions for redistribution. | |
4 | .\" | |
635a9a29 | 5 | .\" @(#)lo.4 6.1 (Berkeley) %G% |
f4d488e2 | 6 | .\" |
635a9a29 | 7 | .TH LO 4 "" |
f4d488e2 KM |
8 | .UC 5 |
9 | .SH NAME | |
10 | lo \- software loopback network interface | |
11 | .SH SYNOPSIS | |
12 | .B pseudo-device loop | |
13 | .SH DESCRIPTION | |
14 | The | |
15 | .I loop | |
16 | interface is a software loopback mechanism which may be | |
17 | used for performance analysis, software testing, and/or local | |
18 | communication. By default, the loopback interface is | |
19 | accessible at address 127.0.0.1 (non-standard); this address | |
20 | may be changed with the SIOCSIFADDR ioctl. | |
21 | .SH DIAGNOSTICS | |
22 | \fBlo%d: can't handle af%d\fP. The interface was handed | |
23 | a message with addresses formatted in an unsuitable address | |
24 | family; the packet was dropped. | |
25 | .SH SEE ALSO | |
26 | intro(4N), inet(4F) | |
27 | .SH BUGS | |
28 | It should handle all address and protocol families. | |
29 | An approved network address should be reserved for this | |
30 | interface. |