| ------------------------------------------------------------------------------ |
| Linux WAN Router Utilities Package |
| ------------------------------------------------------------------------------ |
| Version 2.2.1 |
| Mar 28, 2001 |
| Author: Nenad Corbic <ncorbic@sangoma.com> |
| Copyright (c) 1995-2001 Sangoma Technologies Inc. |
| ------------------------------------------------------------------------------ |
| |
| INTRODUCTION |
| |
| Wide Area Networks (WANs) are used to interconnect Local Area Networks (LANs) |
| and/or stand-alone hosts over vast distances with data transfer rates |
| significantly higher than those achievable with commonly used dial-up |
| connections. |
| |
| Usually an external device called `WAN router' sitting on your local network |
| or connected to your machine's serial port provides physical connection to |
| WAN. Although router's job may be as simple as taking your local network |
| traffic, converting it to WAN format and piping it through the WAN link, these |
| devices are notoriously expensive, with prices as much as 2 - 5 times higher |
| then the price of a typical PC box. |
| |
| Alternatively, considering robustness and multitasking capabilities of Linux, |
| an internal router can be built (most routers use some sort of stripped down |
| Unix-like operating system anyway). With a number of relatively inexpensive WAN |
| interface cards available on the market, a perfectly usable router can be |
| built for less than half a price of an external router. Yet a Linux box |
| acting as a router can still be used for other purposes, such as fire-walling, |
| running FTP, WWW or DNS server, etc. |
| |
| This kernel module introduces the notion of a WAN Link Driver (WLD) to Linux |
| operating system and provides generic hardware-independent services for such |
| drivers. Why can existing Linux network device interface not be used for |
| this purpose? Well, it can. However, there are a few key differences between |
| a typical network interface (e.g. Ethernet) and a WAN link. |
| |
| Many WAN protocols, such as X.25 and frame relay, allow for multiple logical |
| connections (known as `virtual circuits' in X.25 terminology) over a single |
| physical link. Each such virtual circuit may (and almost always does) lead |
| to a different geographical location and, therefore, different network. As a |
| result, it is the virtual circuit, not the physical link, that represents a |
| route and, therefore, a network interface in Linux terms. |
| |
| To further complicate things, virtual circuits are usually volatile in nature |
| (excluding so called `permanent' virtual circuits or PVCs). With almost no |
| time required to set up and tear down a virtual circuit, it is highly desirable |
| to implement on-demand connections in order to minimize network charges. So |
| unlike a typical network driver, the WAN driver must be able to handle multiple |
| network interfaces and cope as multiple virtual circuits come into existence |
| and go away dynamically. |
| |
| Last, but not least, WAN configuration is much more complex than that of say |
| Ethernet and may well amount to several dozens of parameters. Some of them |
| are "link-wide" while others are virtual circuit-specific. The same holds |
| true for WAN statistics which is by far more extensive and extremely useful |
| when troubleshooting WAN connections. Extending the ifconfig utility to suit |
| these needs may be possible, but does not seem quite reasonable. Therefore, a |
| WAN configuration utility and corresponding application programmer's interface |
| is needed for this purpose. |
| |
| Most of these problems are taken care of by this module. Its goal is to |
| provide a user with more-or-less standard look and feel for all WAN devices and |
| assist a WAN device driver writer by providing common services, such as: |
| |
| o User-level interface via /proc file system |
| o Centralized configuration |
| o Device management (setup, shutdown, etc.) |
| o Network interface management (dynamic creation/destruction) |
| o Protocol encapsulation/decapsulation |
| |
| To ba able to use the Linux WAN Router you will also need a WAN Tools package |
| available from |
| |
| ftp.sangoma.com/pub/linux/current_wanpipe/wanpipe-X.Y.Z.tgz |
| |
| where vX.Y.Z represent the wanpipe version number. |
| |
| For technical questions and/or comments please e-mail to ncorbic@sangoma.com. |
| For general inquiries please contact Sangoma Technologies Inc. by |
| |
| Hotline: 1-800-388-2475 (USA and Canada, toll free) |
| Phone: (905) 474-1990 ext: 106 |
| Fax: (905) 474-9223 |
| E-mail: dm@sangoma.com (David Mandelstam) |
| WWW: http://www.sangoma.com |
| |
| |
| INSTALLATION |
| |
| Please read the WanpipeForLinux.pdf manual on how to |
| install the WANPIPE tools and drivers properly. |
| |
| |
| After installing wanpipe package: /usr/local/wanrouter/doc. |
| On the ftp.sangoma.com : /linux/current_wanpipe/doc |
| |
| |
| COPYRIGHT AND LICENSING INFORMATION |
| |
| This program is free software; you can redistribute it and/or modify it under |
| the terms of the GNU General Public License as published by the Free Software |
| Foundation; either version 2, or (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, but WITHOUT |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
| FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License along with |
| this program; if not, write to the Free Software Foundation, Inc., 675 Mass |
| Ave, Cambridge, MA 02139, USA. |
| |
| |
| |
| ACKNOWLEDGEMENTS |
| |
| This product is based on the WANPIPE(tm) Multiprotocol WAN Router developed |
| by Sangoma Technologies Inc. for Linux 2.0.x and 2.2.x. Success of the WANPIPE |
| together with the next major release of Linux kernel in summer 1996 commanded |
| adequate changes to the WANPIPE code to take full advantage of new Linux |
| features. |
| |
| Instead of continuing developing proprietary interface tied to Sangoma WAN |
| cards, we decided to separate all hardware-independent code into a separate |
| module and defined two levels of interfaces - one for user-level applications |
| and another for kernel-level WAN drivers. WANPIPE is now implemented as a |
| WAN driver compliant with the WAN Link Driver interface. Also a general |
| purpose WAN configuration utility and a set of shell scripts was developed to |
| support WAN router at the user level. |
| |
| Many useful ideas concerning hardware-independent interface implementation |
| were given by Mike McLagan <mike.mclagan@linux.org> and his implementation |
| of the Frame Relay router and drivers for Sangoma cards (dlci/sdla). |
| |
| With the new implementation of the APIs being incorporated into the WANPIPE, |
| a special thank goes to Alan Cox in providing insight into BSD sockets. |
| |
| Special thanks to all the WANPIPE users who performed field-testing, reported |
| bugs and made valuable comments and suggestions that help us to improve this |
| product. |
| |
| |
| |
| NEW IN THIS RELEASE |
| |
| o Updated the WANCFG utility |
| Calls the pppconfig to configure the PPPD |
| for async connections. |
| |
| o Added the PPPCONFIG utility |
| Used to configure the PPPD daemon for the |
| WANPIPE Async PPP and standard serial port. |
| The wancfg calls the pppconfig to configure |
| the pppd. |
| |
| o Fixed the PCI autodetect feature. |
| The SLOT 0 was used as an autodetect option |
| however, some high end PC's slot numbers start |
| from 0. |
| |
| o This release has been tested with the new backupd |
| daemon release. |
| |
| |
| PRODUCT COMPONENTS AND RELATED FILES |
| |
| /etc: (or user defined) |
| wanpipe1.conf default router configuration file |
| |
| /lib/modules/X.Y.Z/misc: |
| wanrouter.o router kernel loadable module |
| af_wanpipe.o wanpipe api socket module |
| |
| /lib/modules/X.Y.Z/net: |
| sdladrv.o Sangoma SDLA support module |
| wanpipe.o Sangoma WANPIPE(tm) driver module |
| |
| /proc/net/wanrouter |
| Config reads current router configuration |
| Status reads current router status |
| {name} reads WAN driver statistics |
| |
| /usr/sbin: |
| wanrouter wanrouter start-up script |
| wanconfig wanrouter configuration utility |
| sdladump WANPIPE adapter memory dump utility |
| fpipemon Monitor for Frame Relay |
| cpipemon Monitor for Cisco HDLC |
| ppipemon Monitor for PPP |
| xpipemon Monitor for X25 |
| wpkbdmon WANPIPE keyboard led monitor/debugger |
| |
| /usr/local/wanrouter: |
| README this file |
| COPYING GNU General Public License |
| Setup installation script |
| Filelist distribution definition file |
| wanrouter.rc meta-configuration file |
| (used by the Setup and wanrouter script) |
| |
| /usr/local/wanrouter/doc: |
| wanpipeForLinux.pdf WAN Router User's Manual |
| |
| /usr/local/wanrouter/patches: |
| wanrouter-v2213.gz patch for Linux kernels 2.2.11 up to 2.2.13. |
| wanrouter-v2214.gz patch for Linux kernel 2.2.14. |
| wanrouter-v2215.gz patch for Linux kernels 2.2.15 to 2.2.17. |
| wanrouter-v2218.gz patch for Linux kernels 2.2.18 and up. |
| wanrouter-v240.gz patch for Linux kernel 2.4.0. |
| wanrouter-v242.gz patch for Linux kernel 2.4.2 and up. |
| wanrouter-v2034.gz patch for Linux kernel 2.0.34 |
| wanrouter-v2036.gz patch for Linux kernel 2.0.36 and up. |
| |
| /usr/local/wanrouter/patches/kdrivers: |
| Sources of the latest WANPIPE device drivers. |
| These are used to UPGRADE the linux kernel to the newest |
| version if the kernel source has already been pathced with |
| WANPIPE drivers. |
| |
| /usr/local/wanrouter/samples: |
| interface sample interface configuration file |
| wanpipe1.cpri CHDLC primary port |
| wanpipe2.csec CHDLC secondary port |
| wanpipe1.fr Frame Relay protocol |
| wanpipe1.ppp PPP protocol ) |
| wanpipe1.asy CHDLC ASYNC protocol |
| wanpipe1.x25 X25 protocol |
| wanpipe1.stty Sync TTY driver (Used by Kernel PPPD daemon) |
| wanpipe1.atty Async TTY driver (Used by Kernel PPPD daemon) |
| wanrouter.rc sample meta-configuration file |
| |
| /usr/local/wanrouter/util: |
| * wan-tools utilities source code |
| |
| /usr/local/wanrouter/api/x25: |
| * x25 api sample programs. |
| /usr/local/wanrouter/api/chdlc: |
| * chdlc api sample programs. |
| /usr/local/wanrouter/api/fr: |
| * fr api sample programs. |
| /usr/local/wanrouter/config/wancfg: |
| wancfg WANPIPE GUI configuration program. |
| Creates wanpipe#.conf files. |
| /usr/local/wanrouter/config/cfgft1: |
| cfgft1 GUI CSU/DSU configuration program. |
| |
| /usr/include/linux: |
| wanrouter.h router API definitions |
| wanpipe.h WANPIPE API definitions |
| sdladrv.h SDLA support module API definitions |
| sdlasfm.h SDLA firmware module definitions |
| if_wanpipe.h WANPIPE Socket definitions |
| if_wanpipe_common.h WANPIPE Socket/Driver common definitions. |
| sdlapci.h WANPIPE PCI definitions |
| |
| |
| /usr/src/linux/net/wanrouter: |
| * wanrouter source code |
| |
| /var/log: |
| wanrouter wanrouter start-up log (created by the Setup script) |
| |
| /var/lock: (or /var/lock/subsys for RedHat) |
| wanrouter wanrouter lock file (created by the Setup script) |
| |
| /usr/local/wanrouter/firmware: |
| fr514.sfm Frame relay firmware for Sangoma S508/S514 card |
| cdual514.sfm Dual Port Cisco HDLC firmware for Sangoma S508/S514 card |
| ppp514.sfm PPP Firmware for Sangoma S508 and S514 cards |
| x25_508.sfm X25 Firmware for Sangoma S508 card. |
| |
| |
| REVISION HISTORY |
| |
| 1.0.0 December 31, 1996 Initial version |
| |
| 1.0.1 January 30, 1997 Status and statistics can be read via /proc |
| filesystem entries. |
| |
| 1.0.2 April 30, 1997 Added UDP management via monitors. |
| |
| 1.0.3 June 3, 1997 UDP management for multiple boards using Frame |
| Relay and PPP |
| Enabled continuous transmission of Configure |
| Request Packet for PPP (for 508 only) |
| Connection Timeout for PPP changed from 900 to 0 |
| Flow Control Problem fixed for Frame Relay |
| |
| 1.0.4 July 10, 1997 S508/FT1 monitoring capability in fpipemon and |
| ppipemon utilities. |
| Configurable TTL for UDP packets. |
| Multicast and Broadcast IP source addresses are |
| silently discarded. |
| |
| 1.0.5 July 28, 1997 Configurable T391,T392,N391,N392,N393 for Frame |
| Relay in router.conf. |
| Configurable Memory Address through router.conf |
| for Frame Relay, PPP and X.25. (commenting this |
| out enables auto-detection). |
| Fixed freeing up received buffers using kfree() |
| for Frame Relay and X.25. |
| Protect sdla_peek() by calling save_flags(), |
| cli() and restore_flags(). |
| Changed number of Trace elements from 32 to 20 |
| Added DLCI specific data monitoring in FPIPEMON. |
| 2.0.0 Nov 07, 1997 Implemented protection of RACE conditions by |
| critical flags for FRAME RELAY and PPP. |
| DLCI List interrupt mode implemented. |
| IPX support in FRAME RELAY and PPP. |
| IPX Server Support (MARS) |
| More driver specific stats included in FPIPEMON |
| and PIPEMON. |
| |
| 2.0.1 Nov 28, 1997 Bug Fixes for version 2.0.0. |
| Protection of "enable_irq()" while |
| "disable_irq()" has been enabled from any other |
| routine (for Frame Relay, PPP and X25). |
| Added additional Stats for Fpipemon and Ppipemon |
| Improved Load Sharing for multiple boards |
| |
| 2.0.2 Dec 09, 1997 Support for PAP and CHAP for ppp has been |
| implemented. |
| |
| 2.0.3 Aug 15, 1998 New release supporting Cisco HDLC, CIR for Frame |
| relay, Dynamic IP assignment for PPP and Inverse |
| Arp support for Frame-relay. Man Pages are |
| included for better support and a new utility |
| for configuring FT1 cards. |
| |
| 2.0.4 Dec 09, 1998 Dual Port support for Cisco HDLC. |
| Support for HDLC (LAPB) API. |
| Supports BiSync Streaming code for S502E |
| and S503 cards. |
| Support for Streaming HDLC API. |
| Provides a BSD socket interface for |
| creating applications using BiSync |
| streaming. |
| |
| 2.0.5 Aug 04, 1999 CHDLC initializatin bug fix. |
| PPP interrupt driven driver: |
| Fix to the PPP line hangup problem. |
| New PPP firmware |
| Added comments to the startup SYSTEM ERROR messages |
| Xpipemon debugging application for the X25 protocol |
| New USER_MANUAL.txt |
| Fixed the odd boundary 4byte writes to the board. |
| BiSync Streaming code has been taken out. |
| Available as a patch. |
| Streaming HDLC API has been taken out. |
| Available as a patch. |
| |
| 2.0.6 Aug 17, 1999 Increased debugging in statup scripts |
| Fixed installation bugs from 2.0.5 |
| Kernel patch works for both 2.2.10 and 2.2.11 kernels. |
| There is no functional difference between the two packages |
| |
| 2.0.7 Aug 26, 1999 o Merged X25API code into WANPIPE. |
| o Fixed a memory leak for X25API |
| o Updated the X25API code for 2.2.X kernels. |
| o Improved NEM handling. |
| |
| 2.1.0 Oct 25, 1999 o New code for S514 PCI Card |
| o New CHDLC and Frame Relay drivers |
| o PPP and X25 are not supported in this release |
| |
| 2.1.1 Nov 30, 1999 o PPP support for S514 PCI Cards |
| |
| 2.1.3 Apr 06, 2000 o Socket based x25api |
| o Socket based chdlc api |
| o Socket based fr api |
| o Dual Port Receive only CHDLC support. |
| o Asynchronous CHDLC support (Secondary Port) |
| o cfgft1 GUI csu/dsu configurator |
| o wancfg GUI configuration file |
| configurator. |
| o Architectual directory changes. |
| |
| beta-2.1.4 Jul 2000 o Dynamic interface configuration: |
| Network interfaces reflect the state |
| of protocol layer. If the protocol becomes |
| disconnected, driver will bring down |
| the interface. Once the protocol reconnects |
| the interface will be brought up. |
| |
| Note: This option is turned off by default. |
| |
| o Dynamic wanrouter setup using 'wanconfig': |
| wanconfig utility can be used to |
| shutdown,restart,start or reconfigure |
| a virtual circuit dynamically. |
| |
| Frame Relay: Each DLCI can be: |
| created,stopped,restarted and reconfigured |
| dynamically using wanconfig. |
| |
| ex: wanconfig card wanpipe1 dev wp1_fr16 up |
| |
| o Wanrouter startup via command line arguments: |
| wanconfig also supports wanrouter startup via command line |
| arguments. Thus, there is no need to create a wanpipe#.conf |
| configuration file. |
| |
| o Socket based x25api update/bug fixes. |
| Added support for LCN numbers greater than 255. |
| Option to pass up modem messages. |
| Provided a PCI IRQ check, so a single S514 |
| card is guaranteed to have a non-sharing interrupt. |
| |
| o Fixes to the wancfg utility. |
| o New FT1 debugging support via *pipemon utilities. |
| o Frame Relay ARP support Enabled. |
| |
| beta3-2.1.4 Jul 2000 o X25 M_BIT Problem fix. |
| o Added the Multi-Port PPP |
| Updated utilites for the Multi-Port PPP. |
| |
| 2.1.4 Aut 2000 |
| o In X25API: |
| Maximum packet an application can send |
| to the driver has been extended to 4096 bytes. |
| |
| Fixed the x25 startup bug. Enable |
| communications only after all interfaces |
| come up. HIGH SVC/PVC is used to calculate |
| the number of channels. |
| Enable protocol only after all interfaces |
| are enabled. |
| |
| o Added an extra state to the FT1 config, kernel module. |
| o Updated the pipemon debuggers. |
| |
| o Blocked the Multi-Port PPP from running on kernels |
| 2.2.16 or greater, due to syncppp kernel module |
| change. |
| |
| beta1-2.1.5 Nov 15 2000 |
| o Fixed the MultiPort PPP Support for kernels 2.2.16 and above. |
| 2.2.X kernels only |
| |
| o Secured the driver UDP debugging calls |
| - All illegal netowrk debugging calls are reported to |
| the log. |
| - Defined a set of allowed commands, all other denied. |
| |
| o Cpipemon |
| - Added set FT1 commands to the cpipemon. Thus CSU/DSU |
| configuraiton can be performed using cpipemon. |
| All systems that cannot run cfgft1 GUI utility should |
| use cpipemon to configure the on board CSU/DSU. |
| |
| |
| o Keyboard Led Monitor/Debugger |
| - A new utilty /usr/sbin/wpkbdmon uses keyboard leds |
| to convey operatinal statistic information of the |
| Sangoma WANPIPE cards. |
| NUM_LOCK = Line State (On=connected, Off=disconnected) |
| CAPS_LOCK = Tx data (On=transmitting, Off=no tx data) |
| SCROLL_LOCK = Rx data (On=receiving, Off=no rx data |
| |
| o Hardware probe on module load and dynamic device allocation |
| - During WANPIPE module load, all Sangoma cards are probed |
| and found information is printed in the /var/log/messages. |
| - If no cards are found, the module load fails. |
| - Appropriate number of devices are dynamically loaded |
| based on the number of Sangoma cards found. |
| |
| Note: The kernel configuraiton option |
| CONFIG_WANPIPE_CARDS has been taken out. |
| |
| o Fixed the Frame Relay and Chdlc network interfaces so they are |
| compatible with libpcap libraries. Meaning, tcpdump, snort, |
| ethereal, and all other packet sniffers and debuggers work on |
| all WANPIPE netowrk interfaces. |
| - Set the network interface encoding type to ARPHRD_PPP. |
| This tell the sniffers that data obtained from the |
| network interface is in pure IP format. |
| Fix for 2.2.X kernels only. |
| |
| o True interface encoding option for Frame Relay and CHDLC |
| - The above fix sets the network interface encoding |
| type to ARPHRD_PPP, however some customers use |
| the encoding interface type to determine the |
| protocol running. Therefore, the TURE ENCODING |
| option will set the interface type back to the |
| original value. |
| |
| NOTE: If this option is used with Frame Relay and CHDLC |
| libpcap library support will be broken. |
| i.e. tcpdump will not work. |
| Fix for 2.2.x Kernels only. |
| |
| o Ethernet Bridgind over Frame Relay |
| - The Frame Relay bridging has been developed by |
| Kristian Hoffmann and Mark Wells. |
| - The Linux kernel bridge is used to send ethernet |
| data over the frame relay links. |
| For 2.2.X Kernels only. |
| |
| o Added extensive 2.0.X support. Most new features of |
| 2.1.5 for protocols Frame Relay, PPP and CHDLC are |
| supported under 2.0.X kernels. |
| |
| beta1-2.2.0 Dec 30 2000 |
| o Updated drivers for 2.4.X kernels. |
| o Updated drivers for SMP support. |
| o X25API is now able to share PCI interrupts. |
| o Took out a general polling routine that was used |
| only by X25API. |
| o Added appropriate locks to the dynamic reconfiguration |
| code. |
| o Fixed a bug in the keyboard debug monitor. |
| |
| beta2-2.2.0 Jan 8 2001 |
| o Patches for 2.4.0 kernel |
| o Patches for 2.2.18 kernel |
| o Minor updates to PPP and CHLDC drivers. |
| Note: No functional difference. |
| |
| beta3-2.2.9 Jan 10 2001 |
| o I missed the 2.2.18 kernel patches in beta2-2.2.0 |
| release. They are included in this release. |
| |
| Stable Release |
| 2.2.0 Feb 01 2001 |
| o Bug fix in wancfg GUI configurator. |
| The edit function didn't work properly. |
| |
| |
| bata1-2.2.1 Feb 09 2001 |
| o WANPIPE TTY Driver emulation. |
| Two modes of operation Sync and Async. |
| Sync: Using the PPPD daemon, kernel SyncPPP layer |
| and the Wanpipe sync TTY driver: a PPP protocol |
| connection can be established via Sangoma adapter, over |
| a T1 leased line. |
| |
| The 2.4.0 kernel PPP layer supports MULTILINK |
| protocol, that can be used to bundle any number of Sangoma |
| adapters (T1 lines) into one, under a single IP address. |
| Thus, efficiently obtaining multiple T1 throughput. |
| |
| NOTE: The remote side must also implement MULTILINK PPP |
| protocol. |
| |
| Async:Using the PPPD daemon, kernel AsyncPPP layer |
| and the WANPIPE async TTY driver: a PPP protocol |
| connection can be established via Sangoma adapter and |
| a modem, over a telephone line. |
| |
| Thus, the WANPIPE async TTY driver simulates a serial |
| TTY driver that would normally be used to interface the |
| MODEM to the linux kernel. |
| |
| o WANPIPE PPP Backup Utility |
| This utility will monitor the state of the PPP T1 line. |
| In case of failure, a dial up connection will be established |
| via pppd daemon, ether via a serial tty driver (serial port), |
| or a WANPIPE async TTY driver (in case serial port is unavailable). |
| |
| Furthermore, while in dial up mode, the primary PPP T1 link |
| will be monitored for signs of life. |
| |
| If the PPP T1 link comes back to life, the dial up connection |
| will be shutdown and T1 line re-established. |
| |
| |
| o New Setup installation script. |
| Option to UPGRADE device drivers if the kernel source has |
| already been patched with WANPIPE. |
| |
| Option to COMPILE WANPIPE modules against the currently |
| running kernel, thus no need for manual kernel and module |
| re-compilation. |
| |
| o Updates and Bug Fixes to wancfg utility. |
| |
| bata2-2.2.1 Feb 20 2001 |
| |
| o Bug fixes to the CHDLC device drivers. |
| The driver had compilation problems under kernels |
| 2.2.14 or lower. |
| |
| o Bug fixes to the Setup installation script. |
| The device drivers compilation options didn't work |
| properly. |
| |
| o Update to the wpbackupd daemon. |
| Optimized the cross-over times, between the primary |
| link and the backup dialup. |
| |
| beta3-2.2.1 Mar 02 2001 |
| o Patches for 2.4.2 kernel. |
| |
| o Bug fixes to util/ make files. |
| o Bug fixes to the Setup installation script. |
| |
| o Took out the backupd support and made it into |
| as separate package. |
| |
| beta4-2.2.1 Mar 12 2001 |
| |
| o Fix to the Frame Relay Device driver. |
| IPSAC sends a packet of zero length |
| header to the frame relay driver. The |
| driver tries to push its own 2 byte header |
| into the packet, which causes the driver to |
| crash. |
| |
| o Fix the WANPIPE re-configuration code. |
| Bug was found by trying to run the cfgft1 while the |
| interface was already running. |
| |
| o Updates to cfgft1. |
| Writes a wanpipe#.cfgft1 configuration file |
| once the CSU/DSU is configured. This file can |
| holds the current CSU/DSU configuration. |
| |
| |
| |
| >>>>>> END OF README <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
| |
| |
