slipd(1C)                       TCP/IP R4.11                       slipd(1C)


NAME
       slipd - attach a serial line network interface

SYNOPSIS
          For outbound connections:
       slipd -bbaud -ltty [-hlocalhost] [-rremotehost] [-mnetmask] [-fflags]
       [-d] dialsystem
          For inbound connections:
       slipd [-hlocalhost] [-rremotehost] [-mnetmask] [-fflags] [dialsystem]

   where:
       baud   300, 1200, 2400, 4800, 9600, 19200, or 38400
       tty    A TTY device name that exists in /dev
       localhost
              The hostname or IP address of the local host
       remotehost
              The hostname or IP address of the remote host
       netmask
              A number specifying the network mask
       flags  Flags c, e, and r each preceded by + or -
       dialsystem
              For outbound connections, the name used as a key to access the
              send-expect strings in the $HOME/.slipdialinfo and
              /etc/slipdialinfo databases.  For inbound or outbound
              connections, the name used as a key to access link parameters
              in the /etc/slipusers database; default = user's login name

DESCRIPTION
       The slipd command turns a terminal line into a Serial Line IP link to
       a remote host.  To do this, slipd needs to know the local interface
       address of the link, the remote interface address, and the applicable
       (sub)net mask.

       For outbound connections, baud rate, tty device and dialsystem must
       be specified on the command line for slipd to initiate a dial-out
       sequence.  The $HOME/.slipdialinfo file is consulted first in an
       attempt to find the send-expect strings for dialing and logging-in on
       the remote host.  If the appropriate entry cannot be found, or if the
       file does not exist, then slipd will attempt to read from
       /etc/slipdialinfo.  dialsystem is used as a key to obtain entries
       from both databases.  The /etc/slipusers file is then consulted,
       using dialsystem as a key, for the local interface address, remote
       interface address, initialization flags, and (sub)net mask.  These
       values may be overridden using the command line options; however, the
       user executing the command must be listed in the /etc/slipusers file
       regardless.

       For inbound connections, the /etc/slipusers file is consulted for the
       appropriate values for local interface address, remote interface
       address, initialization flags, and (sub)net mask.  The key used to
       access the /etc/slipusers file can be specified on the command line
       (dialsystem), or it will default to the user's login name.  These
       values can be overridden using the command line options; however, the
       user executing the command (or the specified dialsystem) must be
       listed in /etc/slipusers regardless.

       The IP address parameters may be specified either by name (which will
       be looked up using gethostbyname(3N) and getnetbyname(3)), or as a
       dotted quad that the inetaddr(3N) function can interpret.

   Options
       Most options are used to override values in the /etc/slipusers
       database.

       -b     Specify the baud rate to use for communicating with the
              connected device.

       -l     Specify a device name to use as the communication line.  The
              device must exist in the /dev directory and may be specified
              without the "/dev/" prefix.

       -h     Assign an IP address to the local host.  This can be expressed
              either as a name (found in the hosts database) or as an
              Internet address expressed in the Internet standard dot
              notation.

       -r     Assign an IP address to the remote host.  This can be
              expressed either as a name (found in the hosts database) or as
              an Internet address expressed in the Internet standard dot
              notation.

       -m     Identify (using Internet standard dot notation) which bits of
              the host's Internet address indicate the subnet number.

       -f     Tailor the slip link by setting flags c, e, and r to control
              header compression and default routing.  Prefixing the flag
              with + or - turns the option on or off.  c controls IP packet
              header compression; e controls automatic header compression
              recognition and activation.  r installs a default route for
              the slip interface if one does not exist.  For example, -f+c+r
              enables header compression and installs a default route.

       -d     Print debug traces.  This option forces slipd to remain
              running in the foreground, retaining the controlling terminal.

FILES
       /etc/slipdialinfo  Local SLIP dialer database file

       /etc/slipusers     SLIP link parameters database file

EXAMPLES
       In the following example, a slip link will be initiated at 2400 baud
       using /dev/tty00.  Send-expect strings and link parameters are obtained
       using dialsystem slipserver.

       slipd -b2400 -ltty00 slipserver

SEE ALSO
       admslipdial(1M), admslipuser(1M), slipdialinfo(4M), slipusers(4M).


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