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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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