| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 1 | # |
| 2 | # SLIP network device configuration |
| 3 | # |
| 4 | |
| 5 | config 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 | |
| 36 | config SLHC |
| 37 | tristate |
| 38 | ---help--- |
| 39 | This option enables Van Jacobsen serial line header compression |
| 40 | routines. |
| 41 | |
| 42 | if SLIP |
| 43 | |
| 44 | config 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 | |
| 60 | config 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 | |
| 68 | config 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 | |
| 80 | endif # SLIP |