ADSL working on Linux but not sure why
Iain
I recently subscribed to a Bigpond ADSL plan and received a
self-install kit with a Thomson/Alcatel speedtouch modem. It installed
with no problems using Win2K. Configuring it when booting into Linux
took more time. All attempts to get it working with rp-pppoe-3.5
failed (although the compilation and install went fine). Adsl-start
would simply timeout. Adsl-status revealing that while a link was
established to PPP0, PPP0 was down.
Oddly, after many unsuccessful attempts to get ppoe working (although
adsl-setup proceeded okay), and with a variety of adjustments to the
"neat" network configuration tool - my system suddenly connected to
the internet without the use adsl-start. How can this be? Clearly
something is performing the CHAP authorisation (see below), but what's
doing it if not adsl-start? In addition, after running the last
adsl-setup routine, I deleted the PPP0 entry in the network
configuration using neat.
Would be grateful if someone could tell me how this is connecting, as
I eventually be setting some servers on this machine and would like to
understand the networking setup.
My ifconfig printout is as follows:
[root@mother root]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:40:F4:73:28:1B
inet addr:10.0.0.1 Bcast:10.255.255.255 Mask:255.0.0.0
UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500
Metric:1
RX packets:14280 errors:0 dropped:0 overruns:0 frame:0
TX packets:15103 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:2593054 (2.4 Mb) TX bytes:1255101 (1.1 Mb)
Interrupt:9 Base address:0x3000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:134 errors:0 dropped:0 overruns:0 frame:0
TX packets:134 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:9838 (9.6 Kb) TX bytes:9838 (9.6 Kb)
If i log in to the modem with http://10.0.0.138 (after first
restarting the modem I get this from its system log (most recent
messages are listed first)
System Up Time
Message Contents
00:01:22
PPP link up (pppoa_pppoa) [139.168.35.175]
00:01:22
PPP CHAP Chap receive success : authentication ok
00:01:22
PPP CHAP Receive challenge (rhost = vez6-exhibition)
00:00:15
xDSL linestate up (downstream: 1536 kbit/s, upstream: 128 kbit/s)
00:00:04
LOGIN User <username> logged in on HTTP (from 10.0.0.1)
00:00:00
DHCP server up
00:00:00
KERNEL Cold restart
netstat gives:
[root@mother root]# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window
irtt Iface
169.254.0.0 0.0.0.0 255.255.0.0 U 40 0
0 eth0
10.0.0.0 0.0.0.0 255.0.0.0 U 40 0
0 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 40 0
0 lo
0.0.0.010.0.0.138 0.0.0.0 UG 40 0 0 eth0
Looking at neat's entry for eth0, it has the following settings:
Under the "general" tab of the "device" edit for eth0: 1) set to
activate when computer starts 2) automatically obtain IP settings with
DHCP 3) automatically obtain DNS information from provider
Under the Device tab: 1) hostname set to "mother" 2) Primary DNS set
to 10.0.0.138 3) DNS search path to vic.bigpond.net.au
Hope someone can shed light on this. (note the only other thing i did
in attempting to connect was to compile pptp. I didn't however install
it. This was the last thing I did before the system suddenly connected
to the web - which is why I mention it).
Cheers, Iain