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| 1 | +# SPDX-License-Identifier: GPL-2.0-only |
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| 1 | 2 | # |
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| 2 | 3 | # CCITT X.25 Packet Layer |
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| 3 | 4 | # |
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| 4 | 5 | |
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| 5 | 6 | config X25 |
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| 6 | 7 | tristate "CCITT X.25 Packet Layer" |
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| 7 | | - ---help--- |
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| 8 | + help |
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| 8 | 9 | X.25 is a set of standardized network protocols, similar in scope to |
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| 9 | 10 | frame relay; the one physical line from your box to the X.25 network |
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| 10 | 11 | entry point can carry several logical point-to-point connections |
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| .. | .. |
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| 16 | 17 | if you want that) and the lower level data link layer protocol LAPB |
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| 17 | 18 | (say Y to "LAPB Data Link Driver" below if you want that). |
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| 18 | 19 | |
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| 19 | | - You can read more about X.25 at <http://www.sangoma.com/tutorials/x25/> and |
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| 20 | + You can read more about X.25 at <https://www.sangoma.com/tutorials/x25/> and |
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| 20 | 21 | <http://docwiki.cisco.com/wiki/X.25>. |
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| 21 | 22 | Information about X.25 for Linux is contained in the files |
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| 22 | | - <file:Documentation/networking/x25.txt> and |
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| 23 | | - <file:Documentation/networking/x25-iface.txt>. |
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| 23 | + <file:Documentation/networking/x25.rst> and |
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| 24 | + <file:Documentation/networking/x25-iface.rst>. |
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| 24 | 25 | |
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| 25 | 26 | One connects to an X.25 network either with a dedicated network card |
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| 26 | 27 | using the X.21 protocol (not yet supported by Linux) or one can do |
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