1# 2# Configuration for WAN router 3# 4 5config WAN_ROUTER 6 tristate "WAN router" 7 depends on EXPERIMENTAL 8 ---help--- 9 Wide Area Networks (WANs), such as X.25, frame relay and leased 10 lines, are used to interconnect Local Area Networks (LANs) over vast 11 distances with data transfer rates significantly higher than those 12 achievable with commonly used asynchronous modem connections. 13 Usually, a quite expensive external device called a `WAN router' is 14 needed to connect to a WAN. 15 16 As an alternative, WAN routing can be built into the Linux kernel. 17 With relatively inexpensive WAN interface cards available on the 18 market, a perfectly usable router can be built for less than half 19 the price of an external router. If you have one of those cards and 20 wish to use your Linux box as a WAN router, say Y here and also to 21 the WAN driver for your card, below. You will then need the 22 wan-tools package which is available from <ftp://ftp.sangoma.com/>. 23 Read <file:Documentation/networking/wan-router.txt> for more 24 information. 25 26 To compile WAN routing support as a module, choose M here: the 27 module will be called wanrouter. 28 29 If unsure, say N. 30