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NG_ECHO(4)		    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	14.3		       January 19, 1999			    NG_ECHO(4)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=ng_echo&manpath=FreeBSD+14.3-RELEASE+and+Ports>

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