595 lines
20 KiB
Plaintext
595 lines
20 KiB
Plaintext
#################################################################
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#
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# PPP Sample Configuration File
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#
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# Originally written by Toshiharu OHNO
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#
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# $FreeBSD$
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#
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#################################################################
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# This file is separated into sections. Each section is named with
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# a label starting in column 0 and followed directly by a ``:''. The
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# section continues until the next section. Blank lines and lines
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# beginning with ``#'' are ignored.
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#
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# Lines beginning with "!include" will ``include'' another file. You
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# may want to ``!include ~/.ppp.conf'' for backwards compatibility.
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#
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# Default setup. Always executed when PPP is invoked.
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# This section is *not* pre-loaded by the ``load'' or ``dial'' commands.
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#
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# This is the best place to specify your modem device, it's DTR rate,
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# your dial script and any logging specification. Logging specs should
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# be done first so that the results of subsequent commands are logged.
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#
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default:
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set log Phase Chat LCP IPCP CCP tun command
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set device /dev/cuaa1
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set speed 115200
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set dial "ABORT BUSY ABORT NO\\sCARRIER TIMEOUT 5 \"\" AT \
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OK-AT-OK ATE1Q0 OK \\dATDT\\T TIMEOUT 40 CONNECT"
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# Client side PPP
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#
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# Although the PPP protocol is a peer to peer protocol, we normally
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# consider the side that initiates the connection as the client and
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# the side that receives the connection as the server. Authentication
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# is required by the server either using a unix-style login procedure
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# or by demanding PAP or CHAP authentication from the client.
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#
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# An on demand example where we have dynamic IP addresses and wish to
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# use a unix-style login script:
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#
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# If the peer assigns us an arbitrary IP (most ISPs do this) and we
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# can't predict what their IP will be either, take a wild guess at
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# some IPs that you can't currently route to. Ppp can change this
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# when the link comes up.
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#
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# The /0 bit in "set ifaddr" says that we insist on 0 bits of the
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# specified IP actually being correct, therefore, the other side can assign
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# any IP number.
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#
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# The forth arg to "set ifaddr" makes us send "0.0.0.0" as our requested
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# IP number, forcing the peer to make the decision. This is necessary
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# when negotiating with some (broken) ppp implementations.
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#
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# This entry also works with static IP numbers or when not in -auto mode.
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# The ``add'' line adds a `sticky' default route that will be updated if
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# and when any of the IP numbers are changed in IPCP negotiations.
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# The "set ifaddr" is required in -auto mode.
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#
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# Finally, the ``enable dns'' line tells ppp to ask the peer for the
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# nameserver addresses that should be used. This isn't always supported
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# by the other side, but if it is, ppp will update /etc/resolv.conf with
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# the correct nameserver values at connection time.
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#
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# The login script shown says that you're expecting ``ogin:''. If you
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# don't receive that, send a ``\n'' and expect ``ogin:'' again. When
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# it's received, send ``ppp'', expect ``word:'' then send ``ppp''.
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# You *MUST* customise this login script according to your local
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# requirements.
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#
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pmdemand:
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set phone 1234567
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set login "ABORT NO\\sCARRIER TIMEOUT 5 ogin:--ogin: ppp word: ppp"
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set timeout 120
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set ifaddr 10.0.0.1/0 10.0.0.2/0 255.255.255.0 0.0.0.0
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add default HISADDR
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enable dns
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# If you want to use PAP or CHAP instead of using a unix-style login
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# procedure, do the following. Note, the peer suggests whether we
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# should send PAP or CHAP. By default, we send whatever we're asked for.
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#
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# You *MUST* customise ``MyName'' and ``MyKey'' below.
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#
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PAPorCHAPpmdemand:
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set phone 1234567
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set login
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set authname MyName
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set authkey MyKey
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set timeout 120
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set ifaddr 10.0.0.1/0 10.0.0.2/0 255.255.255.0 0.0.0.0
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add default HISADDR
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enable dns
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# On demand dialup example with static IP addresses:
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# Here, the local side uses 192.244.185.226 and the remote side
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# uses 192.244.176.44.
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#
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# # ppp -auto ondemand
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#
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# With static IP numbers, our setup is similar to dynamic:
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# Remember, ppp.linkup is searched for a "192.244.176.44" label, then
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# a "ondemand" label, and finally the "MYADDR" label.
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#
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ondemand:
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set phone 1234567
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set login "ABORT NO\\sCARRIER TIMEOUT 5 ogin:--ogin: ppp word: ppp"
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set timeout 120
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set ifaddr 192.244.185.226 192.244.176.44
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add default HISADDR
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enable dns
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# Example segments
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#
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# The following lines may be included as part of your configuration
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# section and aren't themselves complete. They're provided as examples
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# of how to achieve different things.
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examples:
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# Multi-phone example. Numbers separated by a : are used sequentially.
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# Numbers separated by a | are used if the previous dial or login script
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# failed. Usually, you will prefer to use only one of | or :, but both
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# are allowed.
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#
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set phone 12345678|12345679:12345670|12345671
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#
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# Ppp can accept control instructions from the ``pppctl'' program.
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# First, you must set up your control socket. It's safest to use
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# a UNIX domain socket, and watch the permissions:
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#
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set server /var/tmp/internet MySecretPassword 0177
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#
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# Although a TCP port may be used if you want to allow control
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# connections from other machines:
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#
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set server 6670 MySecretpassword
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#
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# If you don't like ppp's builtin chat, use an external one:
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#
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set login "\"!chat \\\\-f /etc/ppp/ppp.dev.chat\""
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#
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# If we have a ``strange'' modem that must be re-initialized when we
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# hangup:
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#
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set hangup "\"\" AT OK-AT-OK ATZ OK"
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#
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# To adjust logging withouth blasting the setting in default:
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#
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set log -command +tcp/ip
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#
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# To see log messages on the screen in interactive mode:
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#
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set log local LCP IPCP CCP
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#
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# If you're seeing a lot of magic number problems and failed connections,
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# try this (see the man page):
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#
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set openmode active 5
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#
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# For noisy lines, we may want to reconnect (up to 20 times) after loss
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# of carrier, with 3 second delays between each attempt:
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#
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set reconnect 3 20
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#
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# When playing server for M$ clients, tell them who our NetBIOS name
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# servers are:
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#
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set nbns 10.0.0.1 10.0.0.2
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#
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# Inform the client if they ask for our DNS IP numbers:
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#
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enable dns
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#
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# If you don't want to tell them what's in your /etc/resolf.conf file
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# with `enable dns', override the values:
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#
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set dns 10.0.0.1 10.0.0.2
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#
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# If we're using the -alias switch, redirect ftp and http to an internal
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# machine:
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#
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alias port 10.0.0.2:ftp ftp
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alias port 10.0.0.2:http http
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#
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# or don't trust the outside at all
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#
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alias deny_incoming yes
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#
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# I trust user brian to run ppp, so this goes in the `default' section:
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#
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allow user brian
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#
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# But label `internet' contains passwords that even brian can't have, so
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# I empty out the user access list in that section so that only root can
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# have access:
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#
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allow users
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#
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# I also may wish to set up my ppp login script so that it asks the client
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# for the label they wish to use. I may only want user ``dodgy'' to access
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# their own label in direct mode:
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#
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dodgy:
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allow user dodgy
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allow mode direct
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#
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# If we don't want ICMP and DNS packets to keep the connection alive:
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#
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set filter alive 0 deny icmp
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set filter alive 1 deny udp src eq 53
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set filter alive 2 deny udp dst eq 53
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set filter alive 3 permit 0 0
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#
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# And we don't want ICMPs to cause a dialup:
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#
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set filter dial 0 deny icmp
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set filter dial 1 permit 0 0
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#
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# or any TCP SYN or RST packets (badly closed TCP channels):
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#
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set filter dial 2 deny 0 0 tcp syn finrst
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#
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# Once the line's up, allow connections for ident (113), telnet (23),
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# ftp (20 & 21), DNS (53), my place of work (192.244.191.0/24),
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# ICMP (ping) and traceroute (>33433).
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#
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# Anything else is blocked by default
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#
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set filter in 0 permit tcp dst eq 113
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set filter out 0 permit tcp src eq 113
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set filter in 1 permit tcp src eq 23 estab
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set filter out 1 permit tcp dst eq 23
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set filter in 2 permit tcp src eq 21 estab
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set filter out 2 permit tcp dst eq 21
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set filter in 3 permit tcp src eq 20 dst gt 1023
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set filter out 3 permit tcp dst eq 20
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set filter in 4 permit udp src eq 53
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set filter out 4 permit udp dst eq 53
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set filter in 5 permit 192.244.191.0/24 0/0
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set filter out 5 permit 0/0 192.244.191.0/24
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set filter in 6 permit icmp
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set filter out 6 permit icmp
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set filter in 7 permit udp dst gt 33433
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set filter out 7 permit udp dst gt 33433
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#
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# ``dodgynet'' is an example intended for an autodial configuration which
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# is connecting a local network to a host on an untrusted network.
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dodgynet:
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# Log link uptime
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set log Phase
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# For autoconnect only
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allow modes auto
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# Define modem device and speed
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set device /dev/cuaa1
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set speed 115200
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# Don't support LQR
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deny lqr
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# Remote system phone number, login and password
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set phone 0W1194
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set authname pppLogin
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set authkey MyPassword
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# Chat script to dial remote system
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set dial "ABORT BUSY ABORT NO\\sCARRIER TIMEOUT 5 \"\" ATZ OK-ATZ-OK \
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ATE1Q0M0 OK \\dATDT\\T TIMEOUT 40 CONNECT"
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# Chat script to login to remote Unix system
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set login "TIMEOUT 10 \"\" \"\" gin:--gin: \\U word: \\P"
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# Drop the link after 15 minutes of inactivity
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# Inactivity is defined by the `set filter alive' line below
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set timeout 900
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# Hard-code remote system to appear within local subnet and use proxy arp
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# to make this system the gateway
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set ifaddr 172.17.20.247 172.17.20.248 255.255.240.0
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enable proxy
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# Allow any TCP packet to keep the link alive
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set filter alive 0 permit tcp
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# Only allow dialup to be triggered by http, rlogin, rsh, telnet, ftp or
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# private TCP ports 24 and 4000
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set filter dial 0 7 0 0 tcp dst eq http
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set filter dial 1 7 0 0 tcp dst eq login
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set filter dial 2 7 0 0 tcp dst eq shell
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set filter dial 3 7 0 0 tcp dst eq telnet
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set filter dial 4 7 0 0 tcp dst eq ftp
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set filter dial 5 7 0 0 tcp dst eq 24
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set filter dial 6 deny ! 0 0 tcp dst eq 4000
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# From hosts on a couple of local subnets to the remote peer
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# If the remote host allowed IP forwarding and we wanted to use it, the
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# following rules could be split into two groups to separately validate
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# the source and destination addresses.
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set filter dial 7 permit 172.17.16.0/20 172.17.20.248
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set filter dial 8 permit 172.17.36.0/22 172.17.20.248
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set filter dial 9 permit 172.17.118.0/26 172.17.20.248
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set filter dial 10 permit 10.123.5.0/24 172.17.20.248
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# Once the link's up, limit outgoing access to the specified hosts
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set filter out 0 4 172.17.16.0/20 172.17.20.248
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set filter out 1 4 172.17.36.0/22 172.17.20.248
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set filter out 2 4 172.17.118.0/26 172.17.20.248
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set filter out 3 deny ! 10.123.5.0/24 172.17.20.248
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# Allow established TCP connections
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set filter out 4 permit 0 0 tcp estab
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# And new connections to http, rlogin, rsh, telnet, ftp and ports
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# 24 and 4000
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set filter out 5 permit 0 0 tcp dst eq http
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set filter out 6 permit 0 0 tcp dst eq login
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set filter out 7 permit 0 0 tcp dst eq shell
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set filter out 8 permit 0 0 tcp dst eq telnet
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set filter out 9 permit 0 0 tcp dst eq ftp
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set filter out 10 permit 0 0 tcp dst eq 24
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set filter out 11 permit 0 0 tcp dst eq 4000
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# And outgoing icmp
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set filter out 12 permit 0 0 icmp
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# Once the link's up, limit incoming access to the specified hosts
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set filter in 0 4 172.17.20.248 172.17.16.0/20
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set filter in 1 4 172.17.20.248 172.17.36.0/22
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set filter in 2 4 172.17.20.248 172.17.118.0/26
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set filter in 3 deny ! 172.17.20.248 10.123.5.0/24
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# Established TCP connections and non-PASV FTP
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set filter in 4 permit 0/0 0/0 tcp estab
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set filter in 5 permit 0/0 0/0 tcp src eq 20
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# Useful ICMP messages
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set filter in 6 permit 0/0 0/0 icmp src eq 3
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set filter in 7 permit 0/0 0/0 icmp src eq 4
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set filter in 8 permit 0/0 0/0 icmp src eq 11
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set filter in 9 permit 0/0 0/0 icmp src eq 12
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# Echo reply (local systems can ping the remote host)
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set filter in 10 permit 0/0 0/0 icmp src eq 0
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# And the remote host can ping the local gateway (only)
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set filter in 11 permit 0/0 172.17.20.247 icmp src eq 8
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# Server side PPP
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#
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# If you want the remote system to authenticate itself, you must insist
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# that the peer uses CHAP or PAP with the "enable" keyword. Both CHAP and
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# PAP are disabled by default. You may enable either or both. If both
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# are enabled, CHAP is requested first. If the client doesn't agree, PAP
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# will then be requested.
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#
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# Note: If you use the getty/login process to authenticate users, you
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# don't need to enable CHAP or PAP, but the user that has logged
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# in *MUST* be a member of the ``network'' group (in /etc/group).
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#
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# If you wish to allow any user in the passwd database ppp access, you
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# can ``enable passwdauth''.
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#
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# When the peer authenticates itself, we use ppp.secret for verification
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# (although refer to the ``set radius'' command below for an alternative).
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#
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# Note: We may supply a third field in ppp.secret specifying the IP
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# address for that user, a forth field to specify the
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# ppp.link{up,down} label to use and a fifth field to specify
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# callback characteristics.
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#
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# The easiest way to allow transparent LAN access to your dialin users
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# is to assign them a number from your local LAN and tell ppp to make a
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# ``proxy'' arp entry for them. In this example, we have a local LAN
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# with IP numbers 10.0.0.1 - 10.0.0.99, and we assign numbers to our
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# ppp clients between 10.0.0.100 and 10.0.0.199. It is possible to
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# override the dynamic IP number with a static IP number specified in
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# ppp.secret.
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#
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# Ppp is launched with:
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# # ppp -direct server
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#
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server:
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enable chap
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enable pap
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enable passwdauth
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enable proxy
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set ifaddr 10.0.0.1 10.0.0.100-10.0.0.199
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accept dns
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# Example of a RADIUS configuration:
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# If there are one or more radius servers available, we can use them
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# instead of the ppp.secret file. Simply put then in a radius
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# configuration file (usually /etc/radius.conf) and give ppp the
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# file name.
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# Ppp will use the FRAMED characteristics supplied by the radius server
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# to configure the link.
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radius-server:
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load server
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set radius /etc/radius.conf
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# Example to connect using a null-modem cable:
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# The important thing here is to allow the lqr packets on both sides.
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# Without them enabled, we can't tell if the line's dropped - there
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# should always be carrier on a direct connection.
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# Here, the server sends lqr's every 10 seconds and quits if five in a
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# row fail.
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#
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# Make sure you don't have "deny lqr" in your default: on the client !
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# If the peer denies LQR, we still send ECHO LQR packets at the given
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# lqrperiod interval (ppp-style-pings).
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#
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direct-client:
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set dial ""
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set device /dev/cuaa0
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set sp 115200
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set timeout 900
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set lqrperiod 10
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set log Phase Chat LQM
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set login "ABORT NO\\sCARRIER TIMEOUT 5 ogin:--ogin: ppp word: ppp HELLO"
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set ifaddr 10.0.4.2 10.0.4.1
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enable lqr
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accept lqr
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direct-server:
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set timeout 0
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set lqrperiod 10
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set log Phase LQM
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set ifaddr 10.0.4.1 10.0.4.2
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enable lqr
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accept lqr
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# Example to connect via compuserve
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# Compuserve insists on 7 bits even parity during the chat phase. Modem
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# parity is always reset to ``none'' after the link has been established.
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#
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compuserve:
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set phone 1234567
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set parity even
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set login "TIMEOUT 100 \"\" \"\" Name: CIS ID: 999999,9999/go:pppconnect \
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word: XXXXXXXX PPP"
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set timeout 300
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set ifaddr 10.0.0.1/0 10.0.0.2/0 255.255.255.0 0.0.0.0
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delete ALL
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add default HISADDR
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# Example for PPP over TCP.
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# We assume that inetd on tcpsrv.mynet has been
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# configured to run "ppp -direct tcp-server" when it gets a connection on
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# port 1234. Read the man page for further details
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#
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# Note, we assume we're using a binary-clean connection. If something
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# such as `rlogin' is involved, you may need to ``set escape 0xff''
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#
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tcp-client:
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set device tcpsrv.mynet:1234
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set dial
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set login
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set ifaddr 10.0.5.1 10.0.4.1 255.255.255.0
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tcp-server:
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set ifaddr 10.0.4.1 10.0.5.1 255.255.255.0
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# Example for PPP testing.
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# If you want to test ppp, do it through the loopback interface:
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#
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# Requires a line in /etc/services:
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# ppploop 6671/tcp # loopback ppp daemon
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#
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# and a line in /etc/inetd.conf:
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# ppploop stream tcp nowait root /usr/sbin/ppp ppp -direct loop-in
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#
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loop:
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set timeout 0
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set log phase chat connect lcp ipcp command
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set device localhost:ppploop
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set dial
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set login
|
|
set ifaddr 127.0.0.2 127.0.0.3
|
|
set server /var/tmp/loop "" 0177
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|
|
|
loop-in:
|
|
set timeout 0
|
|
set log phase lcp ipcp command
|
|
allow mode direct
|
|
|
|
# Example of a VPN.
|
|
# If you're going to create a tunnel through a public network, your VPN
|
|
# should be set up something like this:
|
|
#
|
|
# You should already have set up ssh using ssh-agent & ssh-add.
|
|
#
|
|
sloop:
|
|
load loop
|
|
# Passive mode allows ssh plenty of time to establish the connection
|
|
set openmode passive
|
|
set device "!ssh whatevermachine /usr/sbin/ppp -direct loop-in"
|
|
|
|
# Example of non-PPP callback.
|
|
# If you wish to connect to a server that will dial back *without* using
|
|
# the ppp callback facility (rfc1570), take advantage of the fact that
|
|
# ppp doesn't look for carrier 'till `set login' is complete:
|
|
#
|
|
# Here, we expect the server to say DIALBACK then disconnect after
|
|
# we've authenticated ourselves. When this has happened, we wait
|
|
# 60 seconds for a RING.
|
|
#
|
|
dialback:
|
|
set dial "ABORT BUSY ABORT NO\\sCARRIER TIMEOUT 5 \"\" ATZ OK-ATZ-OK \
|
|
ATDT\\T TIMEOUT 60 CONNECT"
|
|
set login "TIMEOUT 5 ogin:--ogin: ppp word: ppp TIMEOUT 15 DIALBACK \
|
|
\"\" NO\\sCARRIER \"\" TIMEOUT 60 RING ATA CONNECT"
|
|
|
|
# Example of PPP callback.
|
|
# Alternatively, if the peer is using the PPP callback protocol, we're
|
|
# happy either with ``auth'' style callback where the server dials us
|
|
# back based on what we authenticate ourselves with, ``cbcp'' style
|
|
# callback (invented by Microsoft but not agreed by the IETF) where
|
|
# we negotiate callback *after* authentication or E.164 callback where
|
|
# we specify only a phone number. I would recommend only ``auth'' and/or
|
|
# ``cbcp'' callback methods.
|
|
# For ``cbcp'', we insist that we choose ``1234567'' as the number that
|
|
# the server must call back.
|
|
#
|
|
callback:
|
|
load pmdemand
|
|
set callback auth cbcp e.164 1234567
|
|
set cbcp 1234567
|
|
|
|
# If we're running a ppp server that wants to only call back microsoft
|
|
# clients on numbers configured in /etc/ppp/ppp.secret (the 5th field):
|
|
#
|
|
callback-server:
|
|
load server
|
|
set callback cbcp
|
|
set cbcp
|
|
set log +cbcp
|
|
set redial 3 1
|
|
set device /dev/cuaa0
|
|
set speed 115200
|
|
set dial "TIMEOUT 10 \"\" AT OK-AT-OK ATDT\\T CONNECT"
|
|
|
|
# Or if we want to allow authenticated clients to specify their own
|
|
# callback number:
|
|
#
|
|
callback-server-client-decides:
|
|
load callback-server
|
|
set cbcp *
|
|
|
|
# Multilink mode is available (rfc1990).
|
|
# To enable multilink capabilities, you must specify a MRRU. 1500 is
|
|
# a reasonable value. To create new links, use the ``clone'' command
|
|
# to duplicate an existing link. If you already have more than one
|
|
# link, you must specify which link you wish to run the command on via
|
|
# the ``link'' command.
|
|
#
|
|
# You can now ``dial'' specific links, or even dial all links at the
|
|
# same time. The `dial' command may also be prefixed with a specific
|
|
# link that should do the dialing.
|
|
#
|
|
mloop:
|
|
load loop
|
|
set mode interactive
|
|
set mrru 1500
|
|
clone 1 2 3
|
|
link deflink remove
|
|
# dial
|
|
# link 2 dial
|
|
# link 3 dial
|
|
|
|
mloop-in:
|
|
set timeout 0
|
|
set log tun phase
|
|
allow mode direct
|
|
set mrru 1500
|
|
|
|
# User supplied authentication:
|
|
# It's possible to run ppp in the background while specifying a
|
|
# program to use to obtain authentication details on demand.
|
|
# This program would usually be a simple GUI that presents a
|
|
# prompt to a known user. The ``chap-auth'' program is supplied
|
|
# as an example (and requires tcl version 8.0).
|
|
#
|
|
CHAPprompt:
|
|
load PAPorCHAPpmdemand
|
|
set authkey !/usr/share/examples/ppp/chap-auth
|
|
|
|
# It's possible to do the same sort of thing at the login prompt.
|
|
# Here, after sending ``brian'' in response to the ``name'' prompt,
|
|
# we're prompted with ``code:''. A window is then displayed on the
|
|
# ``keep:0.0'' display and the typed response is sent to the peer
|
|
# as the password. We then expect to see ``MTU'' and ``.'' in the
|
|
# servers response.
|
|
#
|
|
loginprompt:
|
|
load pmdemand
|
|
set authname brian
|
|
set login "ABORT NO\\sCARRIER TIMEOUT 15 \"\" \"\" name:--name: \\U \
|
|
code: \"!/usr/share/examples/ppp/login-auth -display keep:0.0 \
|
|
AUTHNAME\" MTU \\c ."
|