194 lines
6.1 KiB
Plaintext
194 lines
6.1 KiB
Plaintext
<!-- $Id: slipc.sgml,v 1.2 1995/06/30 17:37:49 jfieber Exp $ -->
|
|
<!-- The FreeBSD Documentation Project -->
|
|
|
|
<sect><heading>Setting up a SLIP client<label id="slipc"></heading>
|
|
|
|
<p><em>Contributed by &a.asami;<newline>8 Aug 1995.</em>
|
|
|
|
The following is one way to set up a 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.
|
|
-->
|
|
|
|
First, determine which serial port your modem is connected to. I have
|
|
a symbolic link /dev/modem -> cuaa1, and only use the modem name in my
|
|
configuration files. It can become quite cumbersome when you need to
|
|
fix a bunch of files in /etc and .kermrc's all over the system! (Note
|
|
that /dev/cuaa0 is COM1, cuaa1 is COM2, etc.)
|
|
|
|
Make sure you have
|
|
<verb>
|
|
pseudo-device sl 1
|
|
</verb>
|
|
in your kernel's config file. It is included in the GENERIC kernel,
|
|
so this won't be a problem unless you deleted it.
|
|
|
|
<sect1><heading>Things you have to do only once</heading>
|
|
|
|
<p><enum>
|
|
<item>Add your home machine, the gateway and nameservers to your
|
|
/etc/hosts file. Mine looks like this:
|
|
<verb>
|
|
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
|
|
</verb>
|
|
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.).
|
|
|
|
<item>Make sure you have "hosts" before "bind" in your /etc/host.conf.
|
|
Otherwise, funny things may happen.
|
|
|
|
<item>Edit the file /etc/sysconfig.
|
|
<enum>
|
|
<item>Set your hostname by editing the line that says:
|
|
<verb>
|
|
hostname=myname.my.domain
|
|
</verb>
|
|
You should give it your full Internet hostname.
|
|
|
|
<item>Add sl0 to the list of network interfaces by changing the line
|
|
that says:
|
|
<verb>
|
|
network_interfaces="lo0"
|
|
</verb>
|
|
to:
|
|
<verb>
|
|
network_interfaces="lo0 sl0"
|
|
</verb>
|
|
|
|
<item>Set the startup flags of sl0 by adding a line:
|
|
<verb>
|
|
ifconfig_sl0="inet ${hostname} slip-gateway netmask 0xffffff00 up"
|
|
</verb>
|
|
|
|
<item>Designate the default router by changing the line:
|
|
<verb>
|
|
defaultrouter=NO
|
|
</verb>
|
|
to:
|
|
<verb>
|
|
defaultrouter=slip-gateway
|
|
</verb>
|
|
</enum>
|
|
|
|
<item>Make a file /etc/resolv.conf which contains:
|
|
<verb>
|
|
domain HIP.Berkeley.EDU
|
|
nameserver 128.32.136.9
|
|
nameserver 128.32.136.12
|
|
</verb>
|
|
As you can see, these set up the nameserver hosts. Of course, the
|
|
actual domain names and addresses depend on your environment.
|
|
|
|
<item>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!
|
|
|
|
<item>Reboot your machine and make sure it comes up with the correct
|
|
hostname.
|
|
</enum>
|
|
|
|
<sect1><heading>Making a SLIP connection</heading>
|
|
|
|
<p><enum>
|
|
<item>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:
|
|
<verb>
|
|
# kermit setup
|
|
set modem hayes
|
|
set line /dev/modem
|
|
set speed 115200
|
|
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
|
|
</verb>
|
|
(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.
|
|
|
|
<item>Leave the kermit there (you can suspend it by "z") and as root,
|
|
type
|
|
<verb>
|
|
slattach -h -c -s 115200 /dev/modem
|
|
</verb>
|
|
if you are able to "ping" hosts on the other side of the router,
|
|
you are connected! If it doesn't work, you might want to try "-a"
|
|
instead of "-c" as an argument to slattach.
|
|
</enum>
|
|
|
|
<sect1><heading>How to shutdown the connection</heading>
|
|
|
|
<p>Type "kill -INT `cat /var/run/slattach.modem.pid`" (as root) to
|
|
kill slattach. 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.
|
|
|
|
<sect1><heading>Troubleshooting</heading>
|
|
|
|
<p>If it doesn't work, feel free to ask me. The things that people
|
|
tripped over so far:
|
|
<itemize>
|
|
<item>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)
|
|
|
|
<item>Using "s10" instead of "sl0" (might be hard to see the difference on
|
|
some fonts.
|
|
|
|
<item>Try "ifconfig sl0" to see your interface status. I get:
|
|
<verb>
|
|
silvia# ifconfig sl0
|
|
sl0: flags=10<POINTOPOINT>
|
|
inet 136.152.64.181 --> 136.152.64.1 netmask ffffff00
|
|
</verb>
|
|
|
|
<item>Also, "netstat -r" will give the routing table, in case you get the
|
|
"no route to host" messages from ping. Mine looks like:
|
|
<verb>
|
|
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)
|
|
</verb>
|
|
(this is after transferring a bunch of files, your numbers should be
|
|
smaller).
|
|
</itemize>
|