[plug] Re: Cannot connect to the Internet in Ubuntu

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Author: thad
Date:  
To: Philippine Linux Users' Group (PLUG) Technical Discussion List
Subject: [plug] Re: Cannot connect to the Internet in Ubuntu
i had an almost thesame problem with my wireless, im trying to force
KNetwork in boot up to connect to the wireless router, ifconfig will
show something similar to what you have there. The ndiswrapper i used
is well inserted module too when i check it everytime so i cant see no
reason that it is a hardware issue.

The only solution i got is to go on traditional, ifdown then ifup
wlan0 after booting up, then the dchpclient will acquire connection
with correct ip range to the router. Before it has a nasty hbit of
showing a 169.xxx.xxxx.xxx range after acquiring the ip address.

thad

On 8/19/06, Harvey Diaz <bhdenterprises@???> wrote:
> hello guys,
>
> SOS pls... i was setting up a new ubuntu dapper in a computer with two
> ethernet lan cards. got no problems during the installation. it even
> said that the network was successfully configured. when i got to the
> Ubuntu desktop, i found out that i have no internet conection. i
> checked the networking tool in Ubuntu and it dispaled nameservers such
> as merdiantelekoms.com and ip addresses. i have a new wireless DSL
> thru Smart Bro that was installed the other day. my friend also has a
> running Ubuntu with Smart Bro connection so I know it got to be a
> hardware problem. my friend's NIC is realtek and mine are two Cnet PRO
> 200 PCI Fast Ethernet Cards (as detected in Windows XP and as labeled
> in the box). in ubuntu it is labeled Davicom Semiconductor Inc.
> DEC-Tulip compatible 10/100 Ethernet (rev 40) when I run lspci.
>
> tried to run dhclient and it said it got no DHCPOFFERS. checked
> ifconfig what was registered was an IP6 address. i know it got to be
> the cards cause my friend has no problems with realtek. now i have a
> lame connection and instead of ubuntu alone in my box i was forced to
> dual boot to WinXp for my internet purposes. i could not even download
> ubuntu uodates and packages because i have no connection. please help
> me guys..
>
> command output:
>
> harvey@webwires:/home/harvey# ifconfig
> eth0      Link encap:Ethernet  HWaddr 00:08:A1:A3:47:C3
>           inet6 addr: fe80::208:a1ff:fea3:47c3/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:269 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:51 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:33679 (32.8 KiB)  TX bytes:15858 (15.4 KiB)
>           Interrupt:5 Base address:0xe800

>
> eth1      Link encap:Ethernet  HWaddr 00:08:A1:A3:3F:27
>           inet6 addr: fe80::208:a1ff:fea3:3f27/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:5 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:28 dropped:0 overruns:0 carrier:28
>           collisions:0 txqueuelen:1000
>           RX bytes:1710 (1.6 KiB)  TX bytes:0 (0.0 b)
>           Interrupt:5 Base address:0xe400

>
> 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:15 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:15 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:772 (772.0 b)  TX bytes:772 (772.0 b)

>
> harvey@webwires:~$ sudo dhclient eth0
> Password:
> 3Internet Systems Consortium DHCP Client V3.0.3
> Copyright 2004-2005 Internet Systems Consortium.
> All rights reserved.
> For info, please visit http://www.isc.org/products/DHCP
>
> Listening on LPF/eth0/00:08:a1:a3:47:c3
> Sending on LPF/eth0/00:08:a1:a3:47:c3
> Sending on Socket/fallback
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 14
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 14
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 18
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 2
> No DHCPOFFERS received.
> No working leases in persistent database - sleeping.
>
> harvey@webwires:~$
>
> thanks a lot,
> harvey
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