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26 .\" $Id: ippp.4,v 1.8 2009/03/15 10:31:04 joerg Exp $
30 .\" last edit-date: [Thu Aug 31 10:40:17 2000]
37 .Nd ISDN synchronous PPP network driver
39 .Cd "pseudo-device ippp" Ar count
43 driver interfaces the IP subsystem of the operating system with the
44 ISDN layer so that a transport of IP packets over an ISDN link
47 For configuration of the
51 utility is used or it is configured via
57 In case an IP packet for a remote side arrives in the driver and no
58 connection is established yet, the driver communicates with the
60 daemon to establish a connection.
62 The driver has support for interfacing to the
72 utility is used to configure all aspects of PPP required to connect to a
79 flags given as parameters to
81 have the following meaning for the
86 Wait passively for connection.
89 event to the Link Control Protocol (LCP) layer will be delayed until
90 after the lower layers signal an
94 This can be used by lower layers to support a dial-in connection where
95 the physical layer isn't available immediately at startup, but only
96 after some external event arrives.
99 event from the lower layer will not take the interface completely down
105 event to the LCP layer will be delayed until either an outbound
106 network packet arrives, or until the lower layer signals an
108 event, indicating an inbound connection.
109 As with passive mode, receipt of a
111 event (loss of carrier) will not automatically take the interface
112 down, thus it remains available for further connections.
133 device driver was written by
134 .An Joerg Wunsch Aq joerg@freebsd.org
135 and then added to ISDN4BSD by
136 .An Gary Jennejohn Aq gary@freebsd.org .
138 This man page was written by
139 .An Hellmuth Michaelis Aq hm@kts.org .