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30 .\" From: @(#)lo.4 8.1 (Berkeley) 6/5/93
37 .Nd point to point protocol network interface
39 .Cd options PPP_BSDCOMP
40 .Cd options PPP_DEFLATE
41 .Cd options PPP_FILTER
47 interface allows serial lines to be used as network interfaces using the
48 .Em Point-to-Point Protocol
52 interface can use various types of compression and has many features
53 over the SLIP protocol used by the
57 Supported options are:
58 .Bl -tag -width 20n -compact
59 .It Cd options PPP_BSDCOMP
60 Enable support for BSD-compress (`bsdcomp') compression in ppp.
61 .It Cd options PPP_DEFLATE
62 Enable support for deflate compression in ppp.
63 .It Cd options PPP_FILTER
66 based filtering for ppp connections.
67 This option is used by
69 which needs to be compiled with
71 defined (the current default).
75 .It ppp%d: af%d not supported .
76 The interface was handed
77 a message with addresses formatted in an unsuitable address
78 family; the packet was dropped.
89 .%T "The Point-to-Point Protocol (PPP)"
101 protocols are supported.