SL(4)                     OpenBSD Programmer's Manual                    SL(4)

NAME
     sl - slip network interface

SYNOPSIS
     pseudo-device sl

DESCRIPTION
     The sl interface allows serial lines to be used as network interfaces us-
     ing the slip protocol.

     An sl interface can be created at runtime using the ifconfig slN create
     command or by setting up a hostname.if(5) configuration file for
     netstart(8).

     The following link-level options are configurable via ifconfig(8):

           link0   Use Van Jacobsen TCP header compression.
           link1   Suppress ICMP traffic.
           link2   Auto-enable Van Jacobsen TCP header compression (enabled by
                   default).

DIAGNOSTICS
     sl%d: af%d not supported.  The interface was handed a message with ad-
     dresses formatted in an unsuitable address family; the packet was
     dropped.

SEE ALSO
     inet(4), netintro(4), hostname.if(5), ifconfig(8), ldattach(8),
     netstart(8), sliplogin(8), slstats(8)

OpenBSD 4.7                     January 6, 2008                              1
