In this case, your /etc/rc.inet1 file should look something like the following:


#!/bin/sh
IPADDR="128.253.154.32" # Replace with your IP address
REMADDR="128.253.154.2" # Replace with your SLIP server address

# Modify the following for the appropriate serial device for the SLIP
# connection:
slattach -p cslip -s 19200 /dev/ttyS0
/etc/ifconfig sl0 $IPADDR pointopoint $REMADDR up
/etc/route add default gw $REMADDR


slattach allocates the first unallocated SLIP device (sl0, sl1, etc.) to the serial line specified.

Note that the first parameter to slattach is the SLIP protocol to use. At present the only valid values are slip and cslip. slip is regular SLIP, as you would expect, and cslip is SLIP with datagram header compression. In most cases you should use cslip; however, if you seem to be having problems with this, try slip.