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ng_split(4) [freebsd man page]

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

Check Out this Related Man Page

NG_UI(4)						   BSD Kernel Interfaces Manual 						  NG_UI(4)

NAME
ng_UI -- UI netgraph node type SYNOPSIS
#include <netgraph/ng_UI.h> DESCRIPTION
The UI node type has two hooks, upstream and downstream. Packets received on downstream must have 0x03 (indicating unnumbered information) as their first byte; if not the packet is dropped. This byte is then stripped and the remainder of the packet sent out on upstream. Conversely, packets received on upstream will have a 0x03 byte prepended to them before being forwarded out on the downstream hook. HOOKS
This node type supports the following hooks: downstream Downstream connection. Packets on this side of the node have a 0x03 as their first byte. upstream Upstream connection. Packets on this side of the node have the initial 0x03 byte stripped off. 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 both hooks have been disconnected. SEE ALSO
netgraph(4), ngctl(8) HISTORY
The ng_UI node type was implemented in FreeBSD 4.0. AUTHORS
Julian Elischer <julian@FreeBSD.org> BSD
January 19, 1999 BSD
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