NG_SPLIT(4)                                                BSD Kernel Interfaces Manual                                                NG_SPLIT(4)

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>

BSD                                                              February 19, 2001                                                             BSD