PPP

Places to go

Obsolete links

Contents

Incoming Sol2 Setup

1. pkginfo | grep ppp should return foucault.eecs 22# pkginfo | grep ppp system SUNWapppr PPP/IP Asynchronous PPP daemon configuration files system SUNWapppu PPP/IP Asynchronous PPP daemon and PPP login service system SUNWpppk PPP/IP and IPdialup Device Drivers
2. Edit /etc/asppp.cf, see examples on bennett and foucault.
3. Be sure to add the machine to /etc/passwd and /etc/shadow, see examples on bennett and foucault
4. Start up the ppp server with /etc/init.d/asppp start Use ps -auxgww | grep ppp to verify that aspppd is running.
5. Try to connect from the remote host. Look in /var/adm/log/asppp.log for error messages.
6. Initially, you may have to type in the following commands by hand: arp -s wanderer 8:0:20:18:19:e pub On foucault /etc/init.d/arppub is a script that can be used to publish the arp address. If you copy this script to the local /etc/init.d, then do (cd /etc/rc3.d; ln -s ../init.d/arppub S51arppub)

Outgoing Sol2 Setup

User commands to start and stop outgoing connections

#! /bin/sh
echo "-->Stopping ISDN first"
/usr/local/etc/stop.isdn
echo "-->Now starting PPP"
exec /usr/local/etc/attach.ppp inr-3 30

#! /bin/sh
exec /usr/local/etc/detach.ppp inr-3

Sol2 Outgoing PPP Administration files

File contents

For a US Robotics modem connected to port B, /etc/uucp/Devices looks like

TCP,et - - Any TCP -
ACU cua/b - Any hayes
Direct cua/b - Any direct
ACUEC cua/b - 9600 usrv34
ACUEC cua/b - 19200 usrv34
ACUEC cua/b - 38400 usrv34

/etc/asppp.cf looks like:

ifconfig ipdptp0 plumb void inr-3 down netmask 255.255.255.0
path
	interface		ipdptp0
	peer_system_name	ppp-homeip # Name of the ref /etc/uucp/Systems
	inactivity_timeout	1800 	# 30 minute timeout (in seconds)
	debug_level 9			# see /etc/log/asppp.log

void	0.0.0.0

To connect to campus, /etc/uucp/Systems would contain a line like:

ppp-homeip Any ACUEC 38400 15106425131 "" P_ZERO "" \r\n\c sername: yourmachine\n ssword: thepasswd\n ===> ppp\n

Debugging outgoing connections

Mac Problems

Problems connecting at all

When I have problems here's what I try:

1. Test the hardware by using kermit or Microphone to dial into campus. Note that you may need to type ate1 to turn on echoing in the kermit window (Unix kermit man page). Also, if you are using a GeoPort modem on a Mac Centris660av, you may need to set the output sound rate to 24khz via the Sound Control panel.
2. Make sure that you can log in as yourself via the modem
3. From within kermit or microphone, try to log in via the modem and start ppp. The way to do this depends on whether you are dialing in and using a campus home-ip number or a private modem

   For campus home-ip, type ppp at the annex prompt, then type your machine name and then your PPP password. If all goes well, you will get a bunch of random garbage characters. This test verifies that you have an active ppp account.

   If you have a private modem, type in the account name for your machine's ppp account, followed by the password.

   Then run the PPP control panel, check the Terminal Window box. and then mouse on open. The terminal window will come up, and you can type commands directly to the modem in it. Try to log in and start PPP by hand as above. You may want to type ate1 to turn on echo.

2.The EECS high-speed modem service:

Q: I encounter a "PPP wait timeout while waiting for 'name'" error message when I try to establish a connection by dialing into the Electrical Engineering & Computer Science (EECS) high-speed (28.8 Kbps) modem service at (510) 642-7654. Why is this happening, and what can I do to connect successfully using this service?

A: The terminal server(s) that sit behind the modems at this phone number wait for an initial carriage return in order to detect the modem connection speed, and the dial-up connection scripts in BIK release 1.5 are transmitting this carriage return too early.

To fix this problem, add a \d (a backslash, followed by the letter "d") to the first line of the connection script. This will add a one-second delay prior to sending the first carriage return in the script.

You can view and edit the connection script by clicking the "Config..." button in the first panel of the Config PPP control panel, then clicking the "Connect Script..." button (or with some earlier versions of the BIK, the "Scripting..." button) in the next panel.

This solution has been added to the BIK Troubleshooting Guide, both in the specific description of the "waiting for 'name'" problem in section 4.6 of the Guide, and in the Guide's "Discussion Section D: About connection scripts".

Credit for suggesting the fix goes to EECS student Marissa Porciuncula. Others who let us us know about this problem and confirmed the efficacy of the fix included EECS students George Chien and Rob Blasi, and EECS staff member Pepe Kaksonen. We're also grateful to Rob McNicholas of EECS, who promptly arranged for us to access the EECS modem banks so we could look at this problem.

Problems transfering data

Problems between solaris and MacPPP

Can't ping

I had to tell MacPPP what addresses to use by going into the MacPPP control panel and looking under Config and then IPCP Options. Here I entered the local and remote addresses.

DNS does not work