No Internet in Debian.

duffmckagan · 10-20-2005, 06:49 AM

I was asked to enter the Network configuration during the installation, but i did not do that, as I had discovered a bug in the previous apt-get...(It used to search for an internet connection ..which I can't get without a login to my ISP server.)

I even can't see a gui for that thing.

I tried the following commands.

Code:

ifconfig eth0 up   

ifconfig eth0 inet netmask 255.255.255.0

ifconfig eth0 inet broadcast xx.xx.xxx.255

ifconfig eth0 inet address xx.xx.xxx.xxx.

route add default gw xx.xx.xxx.1

Internet worked fine then.
But when I restarted the computer, all the addresses had vanished and I get the following error.

Code:

Error: SIOCSIFBRDADDR: Cannot assign requested address

Moreover, the ifconfig -a command gives the following output.

Code:

root@copperskull:/home/amit # ifconfig -a
eth0      Link encap:Ethernet  HWaddr xx:xx:xx:xx:xx:xx
          inet6 addr: fe80::4e00:10ff:fe00:c0cc/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:449 errors:186 dropped:0 overruns:0 frame:0
          TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:47506 (46.3 KiB)  TX bytes:378 (378.0 b)
          Interrupt:11 Base address:0xd000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:24 errors:0 dropped:0 overruns:0 frame:0
          TX packets:24 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:1800 (1.7 KiB)  TX bytes:1800 (1.7 KiB)

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)

How can I get a permanent Internet connection configured on debian?

I have no problem editing files, but just set me off --what file to edit.

Best if you could suggest a GUI thingy for the same.

PS: The LAN Card is not activated on boot. I do it by using ifconfig. How do I change it so that it would start (be UP) automatically at boot-up?

Thank you.

Dead Parrot · 10-20-2005, 07:11 AM

You can set up a temporary network connection with ifconfig and then install the "etherconf" utility, and use it to set up a permanent net connection.

Or you can edit /etc/network/interfaces , as explained in Debian Reference:

http://www.debian.org/doc/manuals/re...tml#s-net-high

duffmckagan · 10-20-2005, 07:16 AM

Yes. I already had referred to that link.

Can I get the etherconf utility from the CDs?
I guess it would be there in one of the CD.

(What about that error I am getting when I try to setup a temporary connection with ifconfig now? )

nx5000 · 10-20-2005, 07:17 AM

Also for a GUI there is the package gnome-system-tools. It should add something in your menu , System Tool, Network tool.

I've not tried it, I manually edit /etc/network/interfaces.

For a temporary connection:
ifconfig eth0 1.1.1.1 netmask 255.255.0.0 broadcast 1.1.1.255
route add default gw 1.1.1.2

duffmckagan · 10-20-2005, 07:21 AM

OK. I will edit that file.

Now, how do I see to it that eth0 is activated on bootup?

nx5000 · 10-20-2005, 07:29 AM

On startup, linux starts network by running
/etc/init.d/network start
which calls
/sbin/ifup -a
which brings up all interfaces that have an "auto" line in interfaces file.

So if you want eth0 to be brought up at boot, put a line :
auto eth0

and to bring it down or up manually, use
ifdown eth0
ifup eth0

duffmckagan · 10-20-2005, 07:47 AM

Thanks for the information. I will try that.

By the way, Internet is working in Debian now.

The Etherconf thing worked like a charm.

I also tried to edit the /etc/network/interfaces file but nothing happened.

Here is my /etc/network/interfaces file just to be sure everything is alright.
Internet is working fine now, but I would like to know what was wrong with the file I edited?

Edited /etc/network/interfaces file:

Code:

### etherconf DEBCONF AREA. DO NOT EDIT THIS AREA OR INSERT TEXT BEFORE IT.
auto lo eth0

iface lo inet loopback

iface eth0 inet static
        address xx.xx.xxx.xxx
        netmask 255.255.255.0
        broadcast xx.xx.xxx.255
        gateway xx.xx.xxx.1


### END OF DEBCONF AREA.  PLACE YOUR EDITS BELOW; THEY WILL BE PRESERVED.

And the Original file was :

Code:

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

iface dsl-provider inet ppp
     provider dsl-provider
# please do not modify the following line
     pre-up /sbin/ifconfig eth0 up # line maintained by pppoeconf

Thank you again.

duffmckagan · 10-20-2005, 07:55 AM

Quote:

On startup, linux starts network by running
/etc/init.d/network start
which calls
/sbin/ifup -a
which brings up all interfaces that have an "auto" line in interfaces file.

So if you want eth0 to be brought up at boot, put a line :
auto eth0

Sorry! But i did not understand this.

There was a file called "networking" in the init.d folder.
Please tell me more about it. Did not really get what were you trying to say.

nx5000 · 10-20-2005, 07:58 AM

Quote:

Originally posted by duffmckagan

I also tried to edit the /etc/network/interfaces file but nothing happened.

After modifying this file, you need to restart the network subsystem so that changes are taken into account
/etc/init.d/network restart

Quote:

Here is my /etc/network/interfaces file just to be sure everything is alright.

Seems ok. The gateway adress must be in the same subnet as yours.

nx5000 · 10-20-2005, 07:59 AM

Quote:

Originally posted by duffmckagan

There was a file called "networking" in the init.d folder.

Yes you're right it's networking, not network

duffmckagan · 10-20-2005, 08:13 AM

Yes. Everything seems to be working fine now.

I also changed the Mode of working of my LAN card using mii-tool, so it is compliant with my ISP.

Moreover, eth0 also comes up on its own.
I think Etherconf did that automatically.

Thanks for the help.