From owner-freebsd-net  Wed Apr 11  0:37:17 2001
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From: Murray Taylor <mtaylor@bytecraft.com.au>
To: "'freebsd-net@freebsd.org'" <freebsd-net@freebsd.org>
Subject: mpd setup 
Date: Wed, 11 Apr 2001 17:38:13 +1000
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Very gently, without wanting to break an existing, working setup
he asks....

Given the following Netgraph Frame Relay configuration,
are these scripts enough to create an mpd-netgraph pptp
connection throught the frame relay internet connection?
Or do I need to add some extra netgraphism's to connect into
the frame relay chain?

Proposed configuration files

mpd.links
frame-pptp:
	set link type pptp
	set pptp self 10.1.2.30
	set pptp enable incoming
	set pptp disable originate  

mpd.conf
pptp1:
	new -i ng0 frame-pptp frame-pptp
	set iface disable on-demand
	set iface enable proxy-arp
	set iface idle 1800
	set bundle disable multilink
	set bundle authname user1
	set link yes acfcomp protocomp
	set link no pap chap
	set link enable chap
	set link keep-alive 10 60
	set ipcp yes vjcomp
# require server to be .170 and remote laptop user to be .171
# as first guess
	set ipcp ranges 10.1.2.170/32 10.1.2.171/32
# our dns server
	set ipcp dns 10.x.y.z
# our WINS servers
	set ipcp nbns 10.a.b.c 10.d.e.f

mpd.secret
user1	"pwd1"

-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-

 - hardware setup

      ng0 ip                         fxp0 ip
    xxx.yyy.zzz.13      SPYDER      10.1.2.30  
                     +----------+   aaa.bbb.ccc.1 alias
                     |          |
        +---+        |-+-+    +-|
  frame | N |  X21   |s|n|    |f|  100BaseT
 =======| T |========|r|g|    |x|~~~~~~~~~~~~
  relay | U |        |0|0|    |p|  
        +---+        |-+-+    |0|
                     |        +-|
                     |          |
                     |          |
                     |          |
                     |          |
                     +----------+


Netgraph setup for Frame Relay Internet access
                                    [       ]
                                    [  lmi  ](annexD) --------+
                                    [       ]                 |
                                                              |
[sync_sr0]                          [             ](dlci0) ---+  
[physical](rawdata) --- (downstream)[ frame_relay ]
[        ]                          [             ](dlci16)---+
                                                              |
  +-----------------------------------------------------------+
  |
  |                {         ]                 [  ng0  ] 10.1.2.30
  +--- (downstream)[ rcf1490 ](inet) --- (inet)[ iface ] aaa.bbb.ccc.1
                   [         ]                 [       ]

================ start_if.ng0 =============================
#!/bin/sh
# script to set up a frame relay link on the sr card.
# The dlci used is selected below. The default is 16

# WANic 405
CARD=sync_sr0
DLCI=16

# create a frame_relay type node and attach it to the sync port.
ngctl mkpeer ${CARD}: frame_relay rawdata downstream

# Attach the dlci output of the (de)multiplexor to a new
# Link management protocol node using ANSI AnnexD
ngctl mkpeer ${CARD}:rawdata lmi dlci0 annexD

# Attach the DLCI(channel) the Telco has assigned you to
# a node to hadle whatever protocol encapsulation your peer
# is using. In this case rfc1490 encapsulation.
ngctl mkpeer ${CARD}:rawdata rfc1490 dlci${DLCI} downstream

# Attach the ip (inet) protocol output of the protocol mux to the ip (inet)
# input of a netgraph "interface" node (ifconfig should show it as "ng0").
ngctl mkpeer ${CARD}:rawdata.dlci${DLCI} iface inet inet

================end of start_if.ng0 ========================


Murray Taylor
Project Engineer

Bytecraft P/L	+61 3 9587 2555
		+61 3 9587 1614 fax
		mtaylor@bytecraft.com.au
		www.bytecraftentertainment.com




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