Author Topic: Need some help configuring SuSE with my DSL  (Read 632 times)

KegDaddy

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Need some help configuring SuSE with my DSL
« on: 4 May 2002, 17:18 »
First of all, I must say, "AWESOME site!"  I hate Micro$hit with every ounce of fermented piss within my body. And, on my last trip to Seattle with my now ex-girlfriend, I got shitfaced at Josies (bar in Redmond) and took a nice healthy piss on one of the Microsoft office doors, right on Microsoft Way...building one.  With all of the cameras, all of the "security", no one even bothered to come out and stop me...and I was there a good ten minutes or so, ifyou know what I mean.  Kind of says something about "Microsoft Security Features" no?

I know some of you guys/gals out there are Linux junkies, so I was hoping that someone could help me out with my DSL connection.  I go through SBC Pacific Bell (a subsidary of Prodigy...hence, another anally clamped trophy on the Mico$hitpole) and I was unable to get support anywhere.  This cumsatin of a company doesn't offer any support for Linux (except a few versions of Redhat....a now "inherited" Microsoft company...surprise surprise) and I am totally in the dark.  I am familiar with Linux (I have used Mandrake 8.0), but I have only accomplished the glamourous feat of setting up a dial-up connection.  I am somewhat lacking in my overall knowledge of the Linux filesystem, and the document that SBC gave me isn't going to help an Arab turn sand into gold.  

If someone can give me a step-by-step, I would apreciate it.  I am going to post the contents of the "readme" file that SBC gave me here.  Any bit of info would be greatly appreciated.

SBC's readme:

Please direct all support-related calls to your licensed Internet Service
Provider.  NTS does not provide direct support.  NTS works through Internet
Service Providers that have licensed our software.

Contents
1.) APPLICATION REQUIREMENTS
2.) INSTALLING
3.) STARTING
4.) STOPPING
5.) MISC.
6.) BUILDING pppoed
7.) IMPROVE PERFORMANCE - SYNC OPTION

1.) APPLICATION REQUIREMENTS

NTS Enternet for Linux requires the following:
  LICENSE
  README
  CHANGES
  ./release/pppoed
       (If you have the files ../release/pppoed-2.2 and ../release/pppoed-2.0,
       rename the file that corresponds to your OS version number to pppoed.)
  ./release/start-pppoe
  ./release/stop-pppoe
  ./release/options.pppoe
 
If you have the source archive for pppoed you will also have a ./src
directory with the files for building pppoed.  To build "cd src" and
type "make".  Make will copy a symbol-free copy of pppoed into "../release/".

If you do not have the PPP daemon installed on your system, you should
install it now.  You can find it on your Linux distribution CD.
It is best to use the latest version of pppd available.  Enternet will
work with versions as old as 2.3.7.

Check your Linux supplier's Web site for updates and patches.  Alternately, the
latest version of pppd can be found at ftp://cs.anu.edu.au/pub/software/ppp/.  
At the time of this writing the latest version of pppd is 2.3.11.

2) INSTALLING

This outline of how to install was prepared for use on Red Hat Linux 5.2,
6.0, and 6.1.

Place files: pppoed, start-pppoe, and stop-pppoe in the directory
/usr/local/bin.

You can use a different binary directory, but you will need to reflect
those changes in the start-pppoe shell script.

Edit the shell script start-pppoe, follow the comments in the area marked off
as "User Changeable Area".  Be sure to put in your correct USERID in the
start-pppoe file.  If you were given a specific Service Name to use and/or
Access Concentrator, make those changes as well.

    Note, the execute bit on the files start-pppoe, stop-pppoe, and
    pppoed is essential for there operation.  Depending on your shell's
    umask setting you may lose some of the permission bits when you
    copy the files.  With some editors you may lose the execute bit
    everytime you edit a file like start-pppoe.  Use the chmod command
    (Example: "chmod ug+x start-pppoe") to restore the execute
    permissions to user and group.

Update /etc/ppp/chap-secrets and pap-secrets with your login UserID and
password information provided by your service provider.

Below are examples of pap-secrets file entries:

        # Secrets for Authentication using PAP  
        # Client    server      secret      IP address  
        myuserid    *           donttell    *

If you need more information about the pap-secrets or chap-secrets file see
the man pages for pppd.  

Place options.pppoe in the /etc/ppp directory.

If you do not have an Ethernet NIC installed, install one now.  Refer to
NET3-HOWTO or Linux-related documentation for help on setting up networking.
"ifconfig" can be used to list the network interfaces currently up and running
on you system.  Most network install procedures/programs/scripts will want an
IP address for the Ethernet NIC.  Use an address such as 10.1.1.1 from the
private address list.  Do not configure the NIC for DHCP or bootp.

The command line below is used to put the ethernet port in a usable state for
doing PPPoE.  This line is included in the start-ppppoe script:

    ifconfig eth0 0.0.0.0 up -broadcast -arp

This has the effect of stopping all IP activities on the ethernet interface,
thereby enabling it to send and receive only PPPoE packets.

   Note: Leaving an old IP address on any network interface
   that is of the same sub-network, as the one your PPPoE
   connection uses, may cause either connection failure or
   routing confusion.  An IP Address from the list of private
   addresses should not be a problem.

Your ISP should have provided you with the address of one or more DNSs.
To use them you will need to update the file /etc/resolv.conf.  An updated
file may look like this:

        nameserver 10.11.12.13
        nameserver 10.11.12.14

3) STARTING

Now you can run /usr/local/bin/start-pppoe.

If you were successful in connecting to the internet, you should be able
to run ifconfig and see details of a new driver ppp0.

4) STOPPING

To stop the PPPoE session, run /usr/local/bin/stop-pppoe.

5) MISC.

You can view the Service Names and Access Concentrator Names that are
accessible to you by running: /usr/local/bin/pppoed -L

This can be useful as a test aid. Getting a resource list in the response
indicates that pppoed can talk to your NIC -> DLS Modem -> phone line -> Access
Concentrator at the Phone Co.  No login is required.

When editing start-pppoe, the -L option can be helpful in getting the correct
spelling for the AC and service names. Note that most people will not need to
detail this information.  When the service name and AC name are left out,
pppoed will connect to the first responding server.  You only need to use
AC name if you have been instructed by your ISP to connect to a particular
access concentrator server.  The service name may be used by some providers
to allow you to access a specific service.  At this time, most people do not
need either of these.

/usr/local/bin/pppoed -v will show the version number of the pppoed program.


If you see syslog message like these after running the Enternet client,
continue reading:
... modprobe: can't locate module char-major-108
... modprobe: can't locate module ppp-compress-21
... modprobe: can't locate module ppp-compress-26
... modprobe: can't locate module ppp-compress-24

The message "... modprobe: can't locate module char-major-108" should be
ignored for 2.0.x and 2.2.x Linux kernels.  The pppd version 2.3.10 code is
trying to access something that is only found in the 2.3.x kernel.  This
message does not appear in pppd version 2.3.11.

If you see the following messages in your syslog, don't worry:
  ... modprobe: can't locate module ppp-compress-21
  ... modprobe: can't locate module ppp-compress-26
  ... modprobe: can't locate module ppp-compress-24
These messages are harmless and can be prevented by adding the following three
lines to /etc/conf.modules:
  alias ppp-compress-21 bsd_comp.o
  alias ppp-compress-26 ppp_deflate.o
  alias ppp-compress-24 ppp_deflate.o


If you see the following syslog message
  ...  kernel: pppoed uses obsolete (PF_INET,SOCK_PACKET)
and would like to get rid of it, copy from ./release/pppoed-2.2 to
/usr/local/bin/pppoed.  If you do not have pppoed-2.2, then you will need to
rebuild the pppoed module.  Change directory to "./src".  Do a "make clean"
then a "make linux2_2.  Now copy the file at "../release/pppoed-2.2" to
"/usr/local/bin/pppoed".

6) BUILDING pppoed

The only library that is not in the default link is libpthread.so.0, which is
in the Linux distribution.  Just "cd" to the pppoed source directory and run
make.  In the ./release/ directory you will find a copy of pppoed with the
symbols stripped off.  Copy it to /usr/local/bin/, or its equal on your system.

7) IMPROVE PERFORMANCE - SYNC OPTION

Using the sync option can reduce pppoed's CPU utilization to about 1/4.  

If you are running the ready build kernel from RedHat 6.1 or Mandrake 6.5,
your system is ready to use the sync option after you do two things.

   1) add the following line to the file /etc/conf.modules:
         alias tty-ldisc-13 n_hdlc

   2) Edit the /usr/local/bin/start-pppoe file.  Find the comment section
      that talks about the sync option and uncomment the sync variable.

There may be other recent package releases of Linux that are ready to support
the sync option.  If you have one of them, try the above out.  If it does not
work, then use the information below to help you through the process of
getting the right pieces together to make it work.


To use the sync option you need:
  1) tty line discipline support for hdlc.
  2) pppd version 2.3.7 or higher
  3) Kernel module for ppp that supports sync


1) tty line discipline support for hdlc

The Hdlc tty line discipline support is in RedHat 6.x release.  It was not
in the RedHat 5.2 release; however, it can be added.  On RedHat release 5.2,
6.0 and 6.1, you will need to add the following line to file /etc/conf.modules,
so that n_hdlc can be loaded automatically on demand:  
  alias tty-ldisc-13 n_hdlc
 
Otherwise you would need to explicitly run the command: insmod n_hdlc

For the RedHat 5.2 release you will need to get a copy of the file n_hdlc.c
from one of the later releases. (RedHat 6.0 has it)  Copy the file to your
kernel source tree /usr/src/linux/drivers/char.  Update the Makefile.  
Locate the line with "M_OBJS :=". Append to the end of this line, n_hdlc.o.  
The line should then read as "M_OBJS := n_hdlc.o".  Rebuild the modules and
install modules.  Refer to related how-to's and kernel release notes for
rebuilding modules.  I've done this; it works.  However, this is getting
messy for some, and it may be time to upgrade.


2) pppd version 2.3.7 or higher

If you do not have pppd version 2.3.7 or higher you must get one before you
can proceed.  Edit the start-pppoe file.  Find the comment section that talks
about the sync option and uncomment the sync variable.


3) Kernel module for ppp that supports sync

The kernel or kernel module supporting ppp must have sync support in it.  
Redhat 6.0 ppp kernel module does not.  It is present in the 6.1 release.
The pppd 2.3.7 or newer archive will have an updated kernel ppp driver source
that can be installed and built.  If you must update your system, you might
just as well get the latest version.  To install follow the README and
README.linux that comes with the archive.

You can check syslog file for messages from pppoed to see if the sync option
was accepted.  e.g. the output of "tail -25 /var/log/messages"  should
contain a line like this:
   ... pppoed[5555]: Operating in Sync mode.
   
If it didn't work, you will see "Operating in Async mode" instead.  This
may be due to an old ppp.o kernel driver module being used with the new pppd
daemon.

If you see the message:
Required N_HDLC line discipline for sync option is not supported by the system.

The n_hdlc.o kernel module did not load.  Recheck syslog for error messages
and check /etc/conf.modules for the line:
  alias tty-ldisc-13 n_hdlc

//end file ()

I do not have a fixed IP.  SuSE seems really easy if you are blessed with an ISP that can actually grant you that feature.  However, in this case, It is unheard of.  I can't switch to cable, and there is no other DSL company that has a server even remotely close to my building.


Any help would be appreaciated.

Thanks in advance.....

voidmain

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