1*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0-only 2*4882a593Smuzhiyun# 3*4882a593Smuzhiyun# SLIP network device configuration 4*4882a593Smuzhiyun# 5*4882a593Smuzhiyun 6*4882a593Smuzhiyunconfig SLIP 7*4882a593Smuzhiyun tristate "SLIP (serial line) support" 8*4882a593Smuzhiyun depends on TTY 9*4882a593Smuzhiyun help 10*4882a593Smuzhiyun Say Y if you intend to use SLIP or CSLIP (compressed SLIP) to 11*4882a593Smuzhiyun connect to your Internet service provider or to connect to some 12*4882a593Smuzhiyun other local Unix box or if you want to configure your Linux box as a 13*4882a593Smuzhiyun Slip/CSlip server for other people to dial in. SLIP (Serial Line 14*4882a593Smuzhiyun Internet Protocol) is a protocol used to send Internet traffic over 15*4882a593Smuzhiyun serial connections such as telephone lines or null modem cables; 16*4882a593Smuzhiyun nowadays, the protocol PPP is more commonly used for this same 17*4882a593Smuzhiyun purpose. 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun Normally, your access provider has to support SLIP in order for you 20*4882a593Smuzhiyun to be able to use it, but there is now a SLIP emulator called SLiRP 21*4882a593Smuzhiyun around (available from 22*4882a593Smuzhiyun <ftp://ibiblio.org/pub/Linux/system/network/serial/>) which 23*4882a593Smuzhiyun allows you to use SLIP over a regular dial up shell connection. If 24*4882a593Smuzhiyun you plan to use SLiRP, make sure to say Y to CSLIP, below. The 25*4882a593Smuzhiyun NET-3-HOWTO, available from 26*4882a593Smuzhiyun <http://www.tldp.org/docs.html#howto>, explains how to 27*4882a593Smuzhiyun configure SLIP. Note that you don't need this option if you just 28*4882a593Smuzhiyun want to run term (term is a program which gives you almost full 29*4882a593Smuzhiyun Internet connectivity if you have a regular dial up shell account on 30*4882a593Smuzhiyun some Internet connected Unix computer. Read 31*4882a593Smuzhiyun <http://www.bart.nl/~patrickr/term-howto/Term-HOWTO.html>). SLIP 32*4882a593Smuzhiyun support will enlarge your kernel by about 4 KB. If unsure, say N. 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun To compile this driver as a module, choose M here. The module 35*4882a593Smuzhiyun will be called slip. 36*4882a593Smuzhiyun 37*4882a593Smuzhiyunconfig SLHC 38*4882a593Smuzhiyun tristate 39*4882a593Smuzhiyun help 40*4882a593Smuzhiyun This option enables Van Jacobsen serial line header compression 41*4882a593Smuzhiyun routines. 42*4882a593Smuzhiyun 43*4882a593Smuzhiyunif SLIP 44*4882a593Smuzhiyun 45*4882a593Smuzhiyunconfig SLIP_COMPRESSED 46*4882a593Smuzhiyun bool "CSLIP compressed headers" 47*4882a593Smuzhiyun depends on SLIP 48*4882a593Smuzhiyun select SLHC 49*4882a593Smuzhiyun help 50*4882a593Smuzhiyun This protocol is faster than SLIP because it uses compression on the 51*4882a593Smuzhiyun TCP/IP headers (not on the data itself), but it has to be supported 52*4882a593Smuzhiyun on both ends. Ask your access provider if you are not sure and 53*4882a593Smuzhiyun answer Y, just in case. You will still be able to use plain SLIP. If 54*4882a593Smuzhiyun you plan to use SLiRP, the SLIP emulator (available from 55*4882a593Smuzhiyun <ftp://ibiblio.org/pub/Linux/system/network/serial/>) which 56*4882a593Smuzhiyun allows you to use SLIP over a regular dial up shell connection, you 57*4882a593Smuzhiyun definitely want to say Y here. The NET-3-HOWTO, available from 58*4882a593Smuzhiyun <http://www.tldp.org/docs.html#howto>, explains how to configure 59*4882a593Smuzhiyun CSLIP. This won't enlarge your kernel. 60*4882a593Smuzhiyun 61*4882a593Smuzhiyunconfig SLIP_SMART 62*4882a593Smuzhiyun bool "Keepalive and linefill" 63*4882a593Smuzhiyun depends on SLIP 64*4882a593Smuzhiyun help 65*4882a593Smuzhiyun Adds additional capabilities to the SLIP driver to support the 66*4882a593Smuzhiyun RELCOM line fill and keepalive monitoring. Ideal on poor quality 67*4882a593Smuzhiyun analogue lines. 68*4882a593Smuzhiyun 69*4882a593Smuzhiyunconfig SLIP_MODE_SLIP6 70*4882a593Smuzhiyun bool "Six bit SLIP encapsulation" 71*4882a593Smuzhiyun depends on SLIP 72*4882a593Smuzhiyun help 73*4882a593Smuzhiyun Just occasionally you may need to run IP over hostile serial 74*4882a593Smuzhiyun networks that don't pass all control characters or are only seven 75*4882a593Smuzhiyun bit. Saying Y here adds an extra mode you can use with SLIP: 76*4882a593Smuzhiyun "slip6". In this mode, SLIP will only send normal ASCII symbols over 77*4882a593Smuzhiyun the serial device. Naturally, this has to be supported at the other 78*4882a593Smuzhiyun end of the link as well. It's good enough, for example, to run IP 79*4882a593Smuzhiyun over the async ports of a Camtec JNT Pad. If unsure, say N. 80*4882a593Smuzhiyun 81*4882a593Smuzhiyunendif # SLIP 82