Original Message:
-----------------
From: Larry [EMAIL PROTECTED]
Date: Thu, 17 Jan 2008 17:51:29 -0800
To: debian-user@lists.debian.org
Subject: pppoeconf / Verizon DSL


I've been using Debian with dial-up for about 8 years and it's getting
pretty slow, so I thought I would try DSL.  The problem is I have
absolutely no understanding of how DSL works.  If I could get a
connection I don't even understand how the browsers, etc. know how to
use it.  And this is after reading the docs, searching Google and the
Debian list, etc.  Is there a good step by step guide somewhere?

When I run pppoeconf I get: "the Access Concentrator of your provider
did not respond."  I have also tried pppoe-setup.  At this point, I
really wonder if the modem is even connected to the computer.  Is
there a way to check it?

I have no idea what to do next, so any help would be greatly
appreciated.

The following is what I have so far and I know I'm not even close
because Apache, FTP, and Dict no longer work.

Westell 6100 modem   DSL2+Router

I have added my password information to chap-secrets
and pap-secrets.

Syslog
-----
eth0: SiS 900 PCI Fast Ethernet at 0xdc00, IRQ 11, 00:d0:09:c9:6d:94

lsmod
-----
pppoe                  14528  0
pppox                   3720  1 pppoe
sis900                 20612  0


/etc/network/interfaces:
auto lo
iface lo inet loopback

iface eth0 inet dhcp

auto dsl-provider
iface dsl-provider inet ppp
     provider dsl-provider
     pre-up /sbin/ifconfig eth0 up # line maintained by pppoeconf


lotek:~# ifup eth0
Internet Software Consortium DHCP Client 2.0pl5

ppp0: unknown hardware address type 512
ppp1: unknown hardware address type 512
sit0: unknown hardware address type 776
ppp0: unknown hardware address type 512
ppp1: unknown hardware address type 512
sit0: unknown hardware address type 776
Listening on LPF/eth0/00:18:3a:f7:c4:14
Sending on   LPF/eth0/00:18:3a:f7:c4:14
Sending on   Socket/fallback/fallback-net
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPACK from 192.168.1.1
bound to 192.168.1.47 -- renewal in 43200 seconds.


lotek:~# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:18:3A:F7:C4:14  
          inet addr:192.168.1.47  Bcast:255.255.255.255  Mask:255.255.255.0
          inet6 addr: fe80::218:3aff:fef7:c414/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:12088 errors:0 dropped:0 overruns:0 frame:0
          TX packets:150 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:725852 (708.8 KiB)  TX bytes:8530 (8.3 KiB)
          Interrupt:11 Base address:0xdc00 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          LOOPBACK  MTU:16436  Metric:1
          RX packets:1718 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1718 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:123662 (120.7 KiB)  TX bytes:123662 (120.7 KiB)

ppp1      Link encap:Point-to-Point Protocol  
          POINTOPOINT NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

sit0      Link encap:IPv6-in-IPv4  
          NOARP  MTU:1480  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

there are several "versions of DSL".  The most common uses what is known as
"discrete multitone modulation".  The spectrum of the "cable" is divided
into frequency bins.  The bottom-most bin is used for POTS (Plain old
telephone service).  The upper bins are divided into several hundred
channels, some of which are used for transmitting-"Upstream" and the rest
are used for receiving-"Downstream".  Regularly the downstream channels
exceed the upstream channels giving rise to the term Asymmetric in ADSL. 
In each bin the spectrum is used much like that of a conventional modem. 
However prior to the transmission of actual data the DSL modem at the
customer's premesis and that at the ISP (usually called a DSLAM) exchange
signals in an attempt to maximize the bit rate in each bin (independently).
Once the bit rate is established control is passed to a higher level
protocol, usually the Point-to Point protocol (PPP) which provides the
connectivity and in some cases authentication (logon) and info exchange
(e.g. DNS, default router).  Hope this helps.
Larry



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