[plug] Cannot connect to the Internet in Ubuntu

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Author: Harvey Diaz
Date:  
To: plug
Subject: [plug] Cannot connect to the Internet in Ubuntu
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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