108 lines
2.4 KiB
Plaintext
108 lines
2.4 KiB
Plaintext
# $FreeBSD$
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# This is a working example of ppp.conf.span-isp that uses ppp connections
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# to the same machine through 3 null-modem serial cables.
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#
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# cuaD03 <-> cuaD04
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# cuaD01 <-> cuaD06
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# cuaD00 <-> cuaD07
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#
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# with gettys running on cuaD04, cuaD06 and cuaD07. The gettytab entry
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# for these devices has a pp= capability that references a script that
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# says:
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#
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# #! /bin/sh
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# tty=$(tty)
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# exec /usr/sbin/pppin -direct isp-in-${tty#${tty%?}}
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#
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# The whole thing is brought up with these commands:
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#
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# ppp -b isp1
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# ppp -b isp2
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# ppp -b isp3
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#
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# Something rather strange happens here.
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# If you connect to the vpn-in diagnostic socket with ``pppctl
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# /var/run/ppp/vpn-in'' and do a ``show links'', only a single link shows up.
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# If you connect to the vpn diagnostic socket (which is created in
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# ppp.linkup.span-isp.working, you see three links. This is because inetd
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# is told to ``wait'' for ppp to finish and the receiving ppp gets to
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# handle all incoming packets on the first descriptor.
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#
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# This is why enabling LQR won't work - VPN-IN has magic number problems,
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# fails to reply to LQRs and the VPN invocations end up shutting down.
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#
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# If anyone can come up with a better way of doing PPP over UDP I'd be
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# interrested to hear it. Currently, the server doesn't connect() or
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# bind().... but the client connect()s. Is there any other way ?
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#
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# Answers on a postcard please ! (to brian@Awfulhak.org)
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#
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default:
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set speed 115200
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set device /dev/cuaD00 /dev/cuaD01 /dev/cuaD03
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set dial
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set login
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set redial 3 5
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set timeout 0
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enable lqr
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set lqrperiod 15
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isp1:
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set authname isp1name
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set authkey isp1key
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isp2:
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set authname isp2name
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set authkey isp2key
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isp3:
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set authname isp3name
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set authkey isp3key
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vpn:
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set enddisc LABEL
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set speed sync
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set mrru 1500
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set mru 1504 # Room for the MP header
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set authname vpnname
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set authkey vpnkey
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add! default HISADDR
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disable deflate pred1 lqr
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deny deflate pred1
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vpn1:
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rename 1
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set device 127.0.2.7:ppp/udp
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vpn2:
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rename 2
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set device 127.0.2.6:ppp/udp
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vpn3:
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rename 3
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set device 127.0.2.4:ppp/udp
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vpn-in:
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set enddisc label
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set speed sync
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set mrru 1500
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set mru 1504 # Room for the MP header
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enable chap
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disable lqr
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set ifaddr 127.0.0.2 127.0.0.3
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set server /var/run/ppp/vpn-in "" 0177
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isp-in-7:
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set ifaddr 127.0.2.7 127.0.3.7
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isp-in-6:
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set ifaddr 127.0.2.6 127.0.3.6
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isp-in-4:
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set ifaddr 127.0.2.4 127.0.3.4
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