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34 lines
1.6 KiB
34 lines
1.6 KiB
# SPDX-License-Identifier: GPL-2.0-only |
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# |
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# CCITT X.25 Packet Layer |
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# |
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config X25 |
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tristate "CCITT X.25 Packet Layer" |
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help |
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X.25 is a set of standardized network protocols, similar in scope to |
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frame relay; the one physical line from your box to the X.25 network |
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entry point can carry several logical point-to-point connections |
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(called "virtual circuits") to other computers connected to the X.25 |
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network. Governments, banks, and other organizations tend to use it |
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to connect to each other or to form Wide Area Networks (WANs). Many |
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countries have public X.25 networks. X.25 consists of two |
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protocols: the higher level Packet Layer Protocol (PLP) (say Y here |
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if you want that) and the lower level data link layer protocol LAPB |
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(say Y to "LAPB Data Link Driver" below if you want that). |
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You can read more about X.25 at <https://www.sangoma.com/tutorials/x25/> and |
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<http://docwiki.cisco.com/wiki/X.25>. |
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Information about X.25 for Linux is contained in the files |
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<file:Documentation/networking/x25.rst> and |
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<file:Documentation/networking/x25-iface.rst>. |
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One connects to an X.25 network either with a dedicated network card |
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using the X.21 protocol (not yet supported by Linux) or one can do |
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X.25 over a standard telephone line using an ordinary modem (say Y |
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to "X.25 async driver" below) or over Ethernet using an ordinary |
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Ethernet card and the LAPB over Ethernet (say Y to "LAPB Data Link |
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Driver" and "LAPB over Ethernet driver" below). |
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To compile this driver as a module, choose M here: the module |
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will be called x25. If unsure, say N.
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