ng_echo(4)
NAME
ng_echo - netgraph echo node type
SYNOPSIS
#include <netgraph/ng_echo.h>
DESCRIPTION
- The echo node type reflects all data and control messages
- back to the
sender. This node type is used for testing and debugging.
HOOKS
- A echo node accepts any request to connect, regardless of
- the hook name,
as long as the name is unique.
CONTROL MESSAGES
- This node type supports only the generic control messages.
- Any other
control messages are reflected back to the sender.
SHUTDOWN
- This node shuts down upon receipt of a NGM_SHUTDOWN control
- message, or
when all hooks have been disconnected.
SEE ALSO
netgraph(4), ng_hole(4), ngctl(8)
HISTORY
The ng_echo node type was implemented in FreeBSD 4.0.
AUTHORS
- Julian Elischer <julian@FreeBSD.org>
- BSD January 19, 1999