PPP(1) PPP(1)
NAME
pppclient, pppserver - point to point protocol
SYNOPSIS
pppclient [ -d ][ -b baudrate ][ -i myipaddr ][ -p
peeripaddr ][ dialdevice ]
pppserver [ -d ] ndev myipaddr firstipaddr firstdev [ baud0
baud1 ... ]
DESCRIPTION
The Point to Point Protocol is used to encapsulate Internet
Protocol packets for transfer over serial lines or other
protocol connections.
Pppclient makes a connection to a PPP server and passes IP
packets over the connection. If dialdevice is omitted,
standard input and output are used as the connection. If
dialdevice begins with a slash, pppclient assumes it is a
file name, open(2)'s it, and uses the result as the connec-
tion. Otherwise, dialdevice is passed as the destination
address to dial(2) to set up the connection.
If the connection is successful, pppclient creates a pipe,
pushes the IP line discipline onto it, and sets the local
and remote addresses of the IP interface to myipaddr and
peeripaddr. It then loops transferring packets between the
pipe and the connection. If either myipaddr or peeripaddr
is omitted, pppclient requests them from the server.
The options are
d print debugging information.
b baud rate of the serial line.
p peer ip address (in case the peer asks for its ip
address over IPCP).
i the local ip address to be established for this
connection.
Pppserver treats serial lines as PPP connections, switching
packets between them and the local machine. It creates a
pipe for a local IP interface (address myipaddr), opens a
set of serial lines, and switches packets between the local
interface and the serial lines. Ndev specifies the number
of serial devices to serve. The devices are named
/dev/eia{firstdev} through /dev/eia{firstdev+ndev-1}. Their
remote IP addresses are firstipaddr through
PPP(1) PPP(1)
firstipaddr+ndev-1. The default baud rate is 9600. If any
arguments follow firstdev (baud0, baud1, ...), they are used
as baud rates for the serial lines. The only option, -d,
turns on debugging output.
Both pppclient and pppserver accept all options defined in
RFCs 1331 and 1332.
EXAMPLES
Start up a server for serial lines /dev/eia[2-6] with remote
IP addresses 131.107.1.100 through 131.107.1.103 and baud
rates of 19200, 2400, 9600, 9600. The local IP address is
131.107.1.1.
pppserver 4 131.107.1.1 131.107.1.100 2 19200 2400
SOURCE
/sys/src/cmd/ppp