*********************************************************************** *** How to Set Up SLIP on FreeBSD *** *********************************************************************** Updated for 1.1.5(.1) support by Satoshi Asami, 8/6/94. The following is I (asami) set up my FreeBSD machine for SLIP on a static host network. For dynamic hostname assignments (i.e., your address changes each time you dial up), you probably need to do something much fancier. This is just "what I did, and it worked for me". I'm sharing this just for your reference, I'm no expert in SLIP nor networking so your mileage may vary. Note: for 1.1 systems (not 1.1.5), you need to use /dev/tty01 instead of /dev/cua01. substitute all the occurences of "cua" in this document with "tty". Note: the default 1.1.5(.1) system only comes with cua/ttyd pairs for the last two ports (2 and 3), so if your modem is at sio0/sio1 (COM1/COM2), you need to make the devices. Try "cd /dev; sh MAKEDEV cua01" to make the new special files for sio1 (ditto for sio0). This will delete tty01, but you shouldn't need it anymore...or you can make a symbolic link /dev/tty01 -> ttyd1 if you don't want to hunt down all occurences of tty01 in your setup files. I actually have a symbolic link /dev/modem -> cua01 (and /dev/mouse -> ttyd0). I use only the modem/mouse names in my configuration files. This helped a lot when I switched from 1.1 to 1.1.5.1 (tty01 => cua01) and when I had to move my modem temporarily to sio2 to enable the RS-232C port on the serial card. It can become quite cumbersome when you need to fix a bunch of files in /etc and .kermrc's all over the system! First, make sure you have pseudo-device sl 2 in your kernel's config file. It is included in the GENERICAH and GENERICBT kernels, so this won't be a problem unless you deleted it. Things you have to do only once: (1) Add your home machine, the gateway and nameservers to your /etc/hosts file. Mine looks like this: 127.0.0.1 localhost loghost 136.152.64.181 silvia.HIP.Berkeley.EDU silvia.HIP silvia 136.152.64.1 inr-3.Berkeley.EDU inr-3 slip-gateway 128.32.136.9 ns1.Berkeley.edu ns1 128.32.136.12 ns2.Berkeley.edu ns2 By the way, silvia is the name of the car that I had when I was back in Japan (it's called 2?0SX here in U.S.). (2) Make sure you have "hosts" before "bind" in your /etc/host.conf. Otherwise, funny things may happen. (3) Edit the /etc/netstart and add this to the end of the file: # set up slip gateway=slip-gateway ifconfig sl0 inet $hostname $gateway netmask 0xffffff00 route add default $gateway Note that because of the "slip-gateway" entry in /etc/hosts, there is no local dependency in the netstart file. Also, you might want to un-comment the "route add $hostname localhost" line. (3') Make a file /etc/resolv.conf which contains: domain HIP.Berkeley.EDU nameserver 128.32.136.9 nameserver 128.32.136.12 As you can see, these set up the nameserver hosts. Of course, the actual addresses depend on your environment. (4) Set the password for root and toor (and any other accounts that doesn't have a password). Use passwd, don't edit the passwd or passwd.master files! (5) Edit /etc/myname and reboot the machine. How to set up the connection: (6) Dial up, type "slip" at the prompt, enter your machine name and password. The things you need to enter depends on your environment. I use kermit, with a script like this: # kermit setup set modem hayes set line /dev/cua01 set speed 57600 set parity none set flow rts/cts set terminal bytesize 8 set file type binary # The next macro will dial up and login define slip dial 643-9600, input 10 =>, if failure stop, - output slip\x0d, input 10 Username:, if failure stop, - output silvia\x0d, input 10 Password:, if failure stop, - output ***\x0d, echo \x0aCONNECTED\x0a (of course, you have to change the hostname and password to fit yours). Then you can just type "slip" from the kermit prompt to get connected. Note: leaving your password in plain text anywhere in the filesystem is generally a BAD idea. Do it at your own risk. I'm just too lazy. Note: If you have an 1.1 machine, and kermit doesn't give you a prompt, try "stty -f /dev/tty01 clocal". I put this in /etc/rc.local so that it works the first time I boot the machine. This doesn't apply to 1.1.5(.1) systems, as cua0? are already configured for dialouts. (7) Leave the kermit there (you can suspend it by "z") and as root, type slattach -h -c -s 57600 /dev/cua01 if you are able to "ping" hosts on campus, you are connected! If it doesn't work, you might want to try "-a" instead of "-c". (8) Happy slipping! How to shutdown the connection: (9) Type "ps gx" (as root) to find out the PID of slattach, and use "kill -INT" to kill it. Then go back to kermit ("fg" if you suspended it) and exit from it ("q"). The slattach man page says you have to use "ifconfig sl0 down" to mark the interface down, but this doesn't seem to make any difference for me. ("ifconfig sl0" reports the same thing.) Some times, your modem might refuse to drop the carrier (mine often does). In that case, simply start kermit and quit it again. It usually goes out on the second try. When you want to connect again, go back to (6). You may have to watch out for clocal mode. If "stty -f /dev/tty01" doesn't tell you it's clocal, you need to re-set it before kermitting. Again, this is only for 1.1 machines. TROUBLESHOOTING: If it doesn't work, feel free to ask me. The things that people tripped over so far: * Not using "-c" or "-a" in slattach (I have no idea why this can be fatal, but adding this flag solved the problem for at least one person) * Using "s10" instead of "sl0" (might be hard to see the difference on some fonts :) Try "ifconfig sl0" to see your interface status. I get: silvia# ifconfig sl0 sl0: flags=10 inet 136.152.64.181 --> 136.152.64.1 netmask ffffff00 Also, "netstat -r" will give the routing table, in case you get the "no route to host" messages from ping. Mine looks like: silvia# netstat -r Routing tables Destination Gateway Flags Refs Use IfaceMTU Rtt Netmasks: (root node) (root node) Route Tree for Protocol Family inet: (root node) => default inr-3.Berkeley.EDU UG 8 224515 sl0 - - localhost.Berkel localhost.Berkeley UH 5 42127 lo0 - 0.438 inr-3.Berkeley.E silvia.HIP.Berkele UH 1 0 sl0 - - silvia.HIP.Berke localhost.Berkeley UGH 34 47641234 lo0 - 0.438 (root node) (this is after transferring a bunch of files, your numbers should be smaller).