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NG_ECHO(4)	       FreeBSD Kernel Interfaces Manual		    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>

FreeBSD	11.1		       January 19, 1999			  FreeBSD 11.1

NAME | SYNOPSIS | DESCRIPTION | HOOKS | CONTROL MESSAGES | SHUTDOWN | SEE ALSO | HISTORY | AUTHORS

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