lo(4) Kernel Interfaces Manual lo(4)
Name
lo - loop network interface
Syntax
pseudo-device loop
Description
The interface is a software loopback mechanism that can be used for performance analysis, software testing, and/or local communication.
By default, the loopback interface is accessible at address 127.0.0.1 (nonstandard); 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)
lo(4)
