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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /drivers/net/ppp/Kconfig
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+#
+# PPP network device configuration
+#
+
+config PPP
+ tristate "PPP (point-to-point protocol) support"
+ select SLHC
+ ---help---
+ PPP (Point to Point Protocol) is a newer and better SLIP. It serves
+ the same purpose: sending Internet traffic over telephone (and other
+ serial) lines. Ask your access provider if they support it, because
+ otherwise you can't use it; most Internet access providers these
+ days support PPP rather than SLIP.
+
+ To use PPP, you need an additional program called pppd as described
+ in the PPP-HOWTO, available at
+ <http://www.tldp.org/docs.html#howto>. Make sure that you have
+ the version of pppd recommended in <file:Documentation/Changes>.
+ The PPP option enlarges your kernel by about 16 KB.
+
+ There are actually two versions of PPP: the traditional PPP for
+ asynchronous lines, such as regular analog phone lines, and
+ synchronous PPP which can be used over digital ISDN lines for
+ example. If you want to use PPP over phone lines or other
+ asynchronous serial lines, you need to say Y (or M) here and also to
+ the next option, "PPP support for async serial ports". For PPP over
+ synchronous lines, you should say Y (or M) here and to "Support
+ synchronous PPP", below.
+
+ If you said Y to "Version information on all symbols" above, then
+ you cannot compile the PPP driver into the kernel; you can then only
+ compile it as a module. To compile this driver as a module, choose M
+ here. The module will be called ppp_generic.
+
+if PPP
+
+config PPP_BSDCOMP
+ tristate "PPP BSD-Compress compression"
+ depends on PPP
+ ---help---
+ Support for the BSD-Compress compression method for PPP, which uses
+ the LZW compression method to compress each PPP packet before it is
+ sent over the wire. The machine at the other end of the PPP link
+ (usually your ISP) has to support the BSD-Compress compression
+ method as well for this to be useful. Even if they don't support it,
+ it is safe to say Y here.
+
+ The PPP Deflate compression method ("PPP Deflate compression",
+ above) is preferable to BSD-Compress, because it compresses better
+ and is patent-free.
+
+ Note that the BSD compression code will always be compiled as a
+ module; it is called bsd_comp and will show up in the directory
+ modules once you have said "make modules". If unsure, say N.
+
+config PPP_DEFLATE
+ tristate "PPP Deflate compression"
+ depends on PPP
+ select ZLIB_INFLATE
+ select ZLIB_DEFLATE
+ ---help---
+ Support for the Deflate compression method for PPP, which uses the
+ Deflate algorithm (the same algorithm that gzip uses) to compress
+ each PPP packet before it is sent over the wire. The machine at the
+ other end of the PPP link (usually your ISP) has to support the
+ Deflate compression method as well for this to be useful. Even if
+ they don't support it, it is safe to say Y here.
+
+ To compile this driver as a module, choose M here.
+
+config PPP_FILTER
+ bool "PPP filtering"
+ depends on PPP
+ ---help---
+ Say Y here if you want to be able to filter the packets passing over
+ PPP interfaces. This allows you to control which packets count as
+ activity (i.e. which packets will reset the idle timer or bring up
+ a demand-dialed link) and which packets are to be dropped entirely.
+ You need to say Y here if you wish to use the pass-filter and
+ active-filter options to pppd.
+
+ If unsure, say N.
+
+config PPP_MPPE
+ tristate "PPP MPPE compression (encryption)"
+ depends on PPP
+ select CRYPTO
+ select CRYPTO_SHA1
+ select CRYPTO_ARC4
+ select CRYPTO_ECB
+ ---help---
+ Support for the MPPE Encryption protocol, as employed by the
+ Microsoft Point-to-Point Tunneling Protocol.
+
+ See http://pptpclient.sourceforge.net/ for information on
+ configuring PPTP clients and servers to utilize this method.
+
+config PPP_MULTILINK
+ bool "PPP multilink support"
+ depends on PPP
+ ---help---
+ PPP multilink is a protocol (defined in RFC 1990) which allows you
+ to combine several (logical or physical) lines into one logical PPP
+ connection, so that you can utilize your full bandwidth.
+
+ This has to be supported at the other end as well and you need a
+ version of the pppd daemon which understands the multilink protocol.
+
+ If unsure, say N.
+
+config PPPOATM
+ tristate "PPP over ATM"
+ depends on ATM && PPP
+ ---help---
+ Support PPP (Point to Point Protocol) encapsulated in ATM frames.
+ This implementation does not yet comply with section 8 of RFC2364,
+ which can lead to bad results if the ATM peer loses state and
+ changes its encapsulation unilaterally.
+
+config PPPOE
+ tristate "PPP over Ethernet"
+ depends on PPP
+ ---help---
+ Support for PPP over Ethernet.
+
+ This driver requires the latest version of pppd from the CVS
+ repository at cvs.samba.org. Alternatively, see the
+ RoaringPenguin package (<http://www.roaringpenguin.com/pppoe>)
+ which contains instruction on how to use this driver (under
+ the heading "Kernel mode PPPoE").
+
+config PPTP
+ tristate "PPP over IPv4 (PPTP)"
+ depends on PPP && NET_IPGRE_DEMUX
+ ---help---
+ Support for PPP over IPv4.(Point-to-Point Tunneling Protocol)
+
+ This driver requires pppd plugin to work in client mode or
+ modified pptpd (poptop) to work in server mode.
+ See http://accel-pptp.sourceforge.net/ for information how to
+ utilize this module.
+
+config PPPOL2TP
+ tristate "PPP over L2TP"
+ depends on L2TP && PPP
+ ---help---
+ Support for PPP-over-L2TP socket family. L2TP is a protocol
+ used by ISPs and enterprises to tunnel PPP traffic over UDP
+ tunnels. L2TP is replacing PPTP for VPN uses.
+if TTY
+
+config PPP_ASYNC
+ tristate "PPP support for async serial ports"
+ depends on PPP
+ select CRC_CCITT
+ ---help---
+ Say Y (or M) here if you want to be able to use PPP over standard
+ asynchronous serial ports, such as COM1 or COM2 on a PC. If you use
+ a modem (not a synchronous or ISDN modem) to contact your ISP, you
+ need this option.
+
+ To compile this driver as a module, choose M here.
+
+ If unsure, say Y.
+
+config PPP_SYNC_TTY
+ tristate "PPP support for sync tty ports"
+ depends on PPP
+ ---help---
+ Say Y (or M) here if you want to be able to use PPP over synchronous
+ (HDLC) tty devices, such as the SyncLink adapter. These devices
+ are often used for high-speed leased lines like T1/E1.
+
+ To compile this driver as a module, choose M here.
+
+endif # TTY
+
+endif # PPP