Manual Reference Pages - NG_SPPP (4)
- sppp netgraph node type
node is a
interface to the original
network module for synchronous lines.
supports PPP and Cisco HDLC protocols.
node could be considered as an alternative kernel mode PPP
and as an alternative to
While having less features than
it is significantly easier to use in the majority of simple configurations,
and allows the administrator to not install the
you do not need any other nodes, not even an
node is created, a new interface appears which is accessible via
Network interfaces corresponding to
nodes are named
When a node is shut down, the corresponding interface is removed,
and the interface name becomes available for reuse by future
New nodes always take the first unused interface.
The node itself is assigned the same name as its interface, unless the name
already exists, in which case the node remains unnamed.
node allows drivers written to the old
interface to be rewritten using the
newer more powerful
interface, and still behave in a compatible manner without supporting both
node has a single hook named
Usually it is connected directly to
a device driver hook.
nodes support the Berkeley Packet Filter,
This node type supports the following hooks:
The connection to the synchronous line.
This node type supports the generic control messages, plus the following:
Returns the name of the associated interface as a
Normally this is the same as the name of the node.
This node shuts down upon receipt of a
The associated interface is removed and becomes available
for use by future
Unlike most other node types and like
go away when all hooks have been disconnected; rather, an explicit
control message is required.
For example, if you have the
device, you could run PPP over it with just one command:
ngctl mkpeer cx0: sppp rawdata downstream
Now you have the
interface (if this was the first
node) which can be
as a normal network interface,
For complex networking topologies you may want to look at
node type was implemented for
.Fx 5.0 .
It was included to the system since
.Fx 5.3 .
Copyright (C) 2003-2004
.An Roman Kurakin Aq firstname.lastname@example.org .
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