Date: Wed, 11 Apr 2001 06:26:47 -0700 From: Julian Elischer <julian@elischer.org> To: Murray Taylor <mtaylor@bytecraft.com.au> Cc: "'freebsd-net@freebsd.org'" <freebsd-net@freebsd.org> Subject: Re: mpd setup Message-ID: <3AD45B97.BBDC5DAB@elischer.org> References: <710709BB8B02D311942E0060674418105442BF@MELEXC01>
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Murray Taylor wrote:
>
> 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?
no, the pptp and the frame realy are orthogonal.
assuming the default route is out through the frame relay interface
the pptp (gre) packets should just goto where required.
mpd will create ng1, ng2, etc. interfaces.
ensure that there is no colision between netgraph and frame relay
in this namespace.. (see below)
>
> 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
^^ this must be ng1 as ng0 is the frame interface.
> 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
>
> To Unsubscribe: send mail to majordomo@FreeBSD.org
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--
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/ \ julian@elischer.org
( OZ ) World tour 2000-2001
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