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-
-AIX 4.1 support is ported from the SunOS code for ppp 2.2. It requires
-a streams-based tty and will not work on AIX 3.2. This is the first
-release of this package for AIX. It is provided free and without warranty
-of any kind.
-
-Introduction
-
- PPP implements TCP/IP through serial connections. In ppp 2.2, an
- interface is established by running the program 'pppd'. pppd opens
- a serial connection, negotiates link attributes with the peer and
- configures a TCP/IP interface. The interface remains up as long as
- the peer stays up and 'pppd' remains running. There are no SMIT menus
- and ppp interfaces can not be defined through ifconfig. An interface
- can be brought down by killing pppd.
-
- The program 'chat' processes send-expect sequences similar to UUCP
- Dialers commands or a Systems chat string. It can be used to dial
- a modem.
-
- 'pppstats' prints interface statistics similar to netstat. Some of the
- statistics are the same as netstat but pppstat also provides additional
- info specific to ppp interfaces.
-
-Installation
-
- First execute the following commands in the ppp-2.2 directory:
-
- ./configure
- make install (you need to be root for this)
-
- By default, pppd, chat and pppstats are placed in /usr/sbin and the
- streams modules in /usr/lib/drivers. The modules are loaded by the following
- 'strload' commands.
-
- strload -m /usr/lib/drivers/ppp_if
- strload -m /usr/lib/drivers/ppp_comp
- strload -m /usr/lib/drivers/ppp_async
-
- 'make install' appends the strloads to /etc/rc.tcpip so the modules
- will be loaded at boot. A 'pppd' command can be added to start
- up an interface.
-
- 'make install' will also create /etc/ppp/options containing the option
- 'lock' only (lock tty device when in use). Any other options which will
- always be used should be added by hand.
-
- Man pages for pppd and pppstats are installed.
-
-Examples
-
- To answer a modem and accept connections, use something like
-
- pppd tty1 myhostname:remotehostname persist
-
- This will wait for calls on tty1 and establish a connection with any
- ppp caller. The server will use myhostname and tell the caller
- to use remotehostname. The persist option tells pppd to remain
- active and accept another connection after the call terminates.
- You can use the 'auth' option to force callers to authenticate
- themselves. See pppd man page for details of authentication protocols.
-
- To dial in to a user account and start PPP, use something like
-
- pppd tty1 myhostname: connect 'chat -f /etc/ppp/chat-script'
-
- where the file /etc/ppp/chat-script should contain something like
-
- "" ATDT5551212 CONNECT "" ogin: myname sword: mypassword $ pppd
-
- This command uses the chat program to dial the modem, log in and
- start pppd on the server. No ttyname is needed when starting pppd on the
- server side because pppd will attach to the current terminal (the tty line),
- if no device is specified. Any pppd options needed can be set in ~/.ppprc
- on the called system.
-
- The chat -v option may be helpful in debugging connection failures. The
- chat output and other debug messages are sent to syslog. You may need
- to edit /etc/syslog.conf and "refresh -s syslogd" to see the debug messages.
-
- The simplest way to allow a remote dial-in host to use your network is
- to use the 'proxyarp' option on the server. This will cause the
- server to publish an arp entry with the remote's IP address and the
- server's hardware address. The remote will then appear to be part of
- local network to other hosts. The address/netmask used by the remote
- must be suitable for the subnet you wish to connect to. If the remote
- is a standalone system, or has no other default route, use the
- 'defaultroute' option when dialing in. This will create a default route
- on the remote system through the server. If the remote is on another
- local network, you might not want this because it could conflict with
- an existing default route.
-
- These are just a few examples to help the new user get started. The
- man page for pppd describes all the options in detail.
-
- Charlie Wick
-
projects / ppp.git / blobdiff