1#
2# SLIP network device configuration
3#
4
5config SLIP
6	tristate "SLIP (serial line) support"
7	depends on TTY
8	---help---
9	  Say Y if you intend to use SLIP or CSLIP (compressed SLIP) to
10	  connect to your Internet service provider or to connect to some
11	  other local Unix box or if you want to configure your Linux box as a
12	  Slip/CSlip server for other people to dial in. SLIP (Serial Line
13	  Internet Protocol) is a protocol used to send Internet traffic over
14	  serial connections such as telephone lines or null modem cables;
15	  nowadays, the protocol PPP is more commonly used for this same
16	  purpose.
17
18	  Normally, your access provider has to support SLIP in order for you
19	  to be able to use it, but there is now a SLIP emulator called SLiRP
20	  around (available from
21	  <ftp://ibiblio.org/pub/Linux/system/network/serial/>) which
22	  allows you to use SLIP over a regular dial up shell connection. If
23	  you plan to use SLiRP, make sure to say Y to CSLIP, below. The
24	  NET-3-HOWTO, available from
25	  <http://www.tldp.org/docs.html#howto>, explains how to
26	  configure SLIP. Note that you don't need this option if you just
27	  want to run term (term is a program which gives you almost full
28	  Internet connectivity if you have a regular dial up shell account on
29	  some Internet connected Unix computer. Read
30	  <http://www.bart.nl/~patrickr/term-howto/Term-HOWTO.html>). SLIP
31	  support will enlarge your kernel by about 4 KB. If unsure, say N.
32
33	  To compile this driver as a module, choose M here. The module
34	  will be called slip.
35
36config SLHC
37	tristate
38	---help---
39	  This option enables Van Jacobsen serial line header compression
40	  routines.
41
42if SLIP
43
44config SLIP_COMPRESSED
45	bool "CSLIP compressed headers"
46	depends on SLIP
47	select SLHC
48	---help---
49	  This protocol is faster than SLIP because it uses compression on the
50	  TCP/IP headers (not on the data itself), but it has to be supported
51	  on both ends. Ask your access provider if you are not sure and
52	  answer Y, just in case. You will still be able to use plain SLIP. If
53	  you plan to use SLiRP, the SLIP emulator (available from
54	  <ftp://ibiblio.org/pub/Linux/system/network/serial/>) which
55	  allows you to use SLIP over a regular dial up shell connection, you
56	  definitely want to say Y here. The NET-3-HOWTO, available from
57	  <http://www.tldp.org/docs.html#howto>, explains how to configure
58	  CSLIP. This won't enlarge your kernel.
59
60config SLIP_SMART
61	bool "Keepalive and linefill"
62	depends on SLIP
63	---help---
64	  Adds additional capabilities to the SLIP driver to support the
65	  RELCOM line fill and keepalive monitoring. Ideal on poor quality
66	  analogue lines.
67
68config SLIP_MODE_SLIP6
69	bool "Six bit SLIP encapsulation"
70	depends on SLIP
71	---help---
72	  Just occasionally you may need to run IP over hostile serial
73	  networks that don't pass all control characters or are only seven
74	  bit. Saying Y here adds an extra mode you can use with SLIP:
75	  "slip6". In this mode, SLIP will only send normal ASCII symbols over
76	  the serial device. Naturally, this has to be supported at the other
77	  end of the link as well. It's good enough, for example, to run IP
78	  over the async ports of a Camtec JNT Pad. If unsure, say N.
79
80endif # SLIP
81