NAME

ng_split — netgraph node to separate incoming and outgoing flows

SYNOPSIS

#include <netgraph/ng_split.h>

DESCRIPTION

The split node type is used to split a bidirectional stream of packets into two separate unidirectional streams of packets.

HOOKS

This node type supports the following three hooks:

in

Packets received on in are forwarded to mixed.

out

Packets received on out will be discarded as illegal.

mixed

Packets received on mixed are forwarded to out.

CONTROL MESSAGES

This node type supports only the generic control messages.

SHUTDOWN

This node shuts down upon receipt of a NGM_SHUTDOWN control message, or when all hooks have been disconnected.

SEE ALSO

netgraph(4), ngctl(8)

HISTORY

The ng_split node type was implemented in FreeBSD 3.5 but incorporated into FreeBSD in FreeBSD 5.0.

AUTHORS

Julian Elischer <julian@FreeBSD.org>
Vitaly V. Belekhov <vitaly@riss-telecom.ru>