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7a04ff1277
Remove the "You can read more about X.25 at" links provided in Kconfig as they have not pointed at any relevant pages for quite a while. An old copy of https://www.sangoma.com/tutorials/x25/ can be retrieved via https://archive.org/web/ but nothing useful seems to have been preserved for http://docwiki.cisco.com/wiki/X.25 For the sake of necromancy and those who really did want to read more about X.25, a previous incarnation of Kconfig included a link to: http://www.cisco.com/univercd/cc/td/doc/product/software/ios11/cbook/cx25.htm Which can still be read at: https://web.archive.org/web/20071013101232/http://cisco.com/en/US/docs/ios/11_0/router/configuration/guide/cx25.html Signed-off-by: Justin Swartz <justin.swartz@risingedge.co.za> Acked-by: Martin Schiller <ms@dev.tdt.de> Link: https://lore.kernel.org/r/20240306112659.25375-1-justin.swartz@risingedge.co.za Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1.4 KiB
1.4 KiB
SPDX-License-Identifier: GPL-2.0-only
CCITT X.25 Packet Layer
config X25 tristate "CCITT X.25 Packet Layer" help X.25 is a set of standardized network protocols, similar in scope to frame relay; the one physical line from your box to the X.25 network entry point can carry several logical point-to-point connections (called "virtual circuits") to other computers connected to the X.25 network. Governments, banks, and other organizations tend to use it to connect to each other or to form Wide Area Networks (WANs). Many countries have public X.25 networks. X.25 consists of two protocols: the higher level Packet Layer Protocol (PLP) (say Y here if you want that) and the lower level data link layer protocol LAPB (say Y to "LAPB Data Link Driver" below if you want that).
Information about X.25 for Linux is contained in the files
<file:Documentation/networking/x25.rst> and
<file:Documentation/networking/x25-iface.rst>.
One connects to an X.25 network either with a dedicated network card
using the X.21 protocol (not yet supported by Linux) or one can do
X.25 over a standard telephone line using an ordinary modem (say Y
to "X.25 async driver" below) or over Ethernet using an ordinary
Ethernet card and the LAPB over Ethernet (say Y to "LAPB Data Link
Driver" and "LAPB over Ethernet driver" below).
To compile this driver as a module, choose M here: the module
will be called x25. If unsure, say N.