1# $FreeBSD$ 2 3# This is a working example of ppp.conf.span-isp that uses ppp connections 4# to the same machine through 3 null-modem serial cables. 5# 6# cuaD03 <-> cuaD04 7# cuaD01 <-> cuaD06 8# cuaD00 <-> cuaD07 9# 10# with gettys running on cuaD04, cuaD06 and cuaD07. The gettytab entry 11# for these devices has a pp= capability that references a script that 12# says: 13# 14# #! /bin/sh 15# tty=$(tty) 16# exec /usr/sbin/pppin -direct isp-in-${tty#${tty%?}} 17# 18# The whole thing is brought up with these commands: 19# 20# ppp -b isp1 21# ppp -b isp2 22# ppp -b isp3 23# 24# Something rather strange happens here. 25# If you connect to the vpn-in diagnostic socket with ``pppctl 26# /var/tmp/vpn-in'' and do a ``show links'', only a single link shows up. 27# If you connect to the vpn diagnostic socket (which is created in 28# ppp.linkup.span-isp.working, you see three links. This is because inetd 29# is told to ``wait'' for ppp to finish and the receiving ppp gets to 30# handle all incoming packets on the first descriptor. 31# 32# This is why enabling LQR won't work - VPN-IN has magic number problems, 33# fails to reply to LQRs and the VPN invocations end up shutting down. 34# 35# If anyone can come up with a better way of doing PPP over UDP I'd be 36# interrested to hear it. Currently, the server doesn't connect() or 37# bind().... but the client connect()s. Is there any other way ? 38# 39# Answers on a postcard please ! (to brian@Awfulhak.org) 40# 41 42default: 43 set speed 115200 44 set device /dev/cuaD00 /dev/cuaD01 /dev/cuaD03 45 set dial 46 set login 47 set redial 3 5 48 set timeout 0 49 enable lqr 50 set lqrperiod 15 51 52isp1: 53 set authname isp1name 54 set authkey isp1key 55 56isp2: 57 set authname isp2name 58 set authkey isp2key 59 60isp3: 61 set authname isp3name 62 set authkey isp3key 63 64 65vpn: 66 set enddisc LABEL 67 set speed sync 68 set mrru 1500 69 set mru 1504 # Room for the MP header 70 set authname vpnname 71 set authkey vpnkey 72 add! default HISADDR 73 disable deflate pred1 lqr 74 deny deflate pred1 75 76vpn1: 77 rename 1 78 set device 127.0.2.7:ppp/udp 79 80vpn2: 81 rename 2 82 set device 127.0.2.6:ppp/udp 83 84vpn3: 85 rename 3 86 set device 127.0.2.4:ppp/udp 87 88 89vpn-in: 90 set enddisc label 91 set speed sync 92 set mrru 1500 93 set mru 1504 # Room for the MP header 94 enable chap 95 disable lqr 96 set ifaddr 127.0.0.2 127.0.0.3 97 set server /var/tmp/vpn-in "" 0177 98 99 100isp-in-7: 101 set ifaddr 127.0.2.7 127.0.3.7 102 103isp-in-6: 104 set ifaddr 127.0.2.6 127.0.3.6 105 106isp-in-4: 107 set ifaddr 127.0.2.4 127.0.3.4 108