| # | 
 | # Configuration for WAN router | 
 | # | 
 |  | 
 | config WAN_ROUTER | 
 | 	tristate "WAN router" | 
 | 	depends on EXPERIMENTAL | 
 | 	---help--- | 
 | 	  Wide Area Networks (WANs), such as X.25, frame relay and leased | 
 | 	  lines, are used to interconnect Local Area Networks (LANs) over vast | 
 | 	  distances with data transfer rates significantly higher than those | 
 | 	  achievable with commonly used asynchronous modem connections. | 
 | 	  Usually, a quite expensive external device called a `WAN router' is | 
 | 	  needed to connect to a WAN. | 
 |  | 
 | 	  As an alternative, WAN routing can be built into the Linux kernel. | 
 | 	  With relatively inexpensive WAN interface cards available on the | 
 | 	  market, a perfectly usable router can be built for less than half | 
 | 	  the price of an external router.  If you have one of those cards and | 
 | 	  wish to use your Linux box as a WAN router, say Y here and also to | 
 | 	  the WAN driver for your card, below.  You will then need the | 
 | 	  wan-tools package which is available from <ftp://ftp.sangoma.com/>. | 
 | 	  Read <file:Documentation/networking/wan-router.txt> for more | 
 | 	  information. | 
 |  | 
 | 	  To compile WAN routing support as a module, choose M here: the | 
 | 	  module will be called wanrouter. | 
 |  | 
 | 	  If unsure, say N. |