LinuxQuestions.org
Download your favorite Linux distribution at LQ ISO.
Home Forums Tutorials Articles Register
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Laptop and Netbook
User Name
Password
Linux - Laptop and Netbook Having a problem installing or configuring Linux on your laptop? Need help running Linux on your netbook? This forum is for you. This forum is for any topics relating to Linux and either traditional laptops or netbooks (such as the Asus EEE PC, Everex CloudBook or MSI Wind).

Notices


Reply
  Search this Thread
Old 06-09-2010, 03:55 PM   #1
resuni
Member
 
Registered: Oct 2009
Location: Colorado, USA
Distribution: I use Arch btw
Posts: 142

Rep: Reputation: 12
Network Manager Says There's A Network Connection When I Can't Ping Anything


Title explains the main problem. I'm using Ubuntu Netbook Remix 10.04 on a wired connection. Wireless connections worked fine last I checked. When I plug in an ethernet cable the alert in the top right-hand corner comes up and tells me I have a wired network connection, but when I open up my web browser, it tells me the web page is unavailable. I try pinging a local computer and every line it says Destination Host Unreachable. When I kill the process with ^C it says
Code:
--- ping statistics ---
19 packets transmitted, 0 received, +18 erros, 100% packet loss, time 18094ms, pipe 3
How do I fix this? Don't tell me to go down a reset my router because my Solaris machines and my other Ubuntu computer ping each other and connect to the internet without any problem. Besides, if I wanted to restart stuff instead of actually fixing the problem I might as well use Windows.
 
Old 06-09-2010, 06:55 PM   #2
yooy
Senior Member
 
Registered: Dec 2009
Posts: 1,387

Rep: Reputation: 174Reputation: 174
what were you trying to ping? maybe there is a dns problem. Try checking connection information in network manager if something's missing.
 
Old 06-10-2010, 10:28 AM   #3
resuni
Member
 
Registered: Oct 2009
Location: Colorado, USA
Distribution: I use Arch btw
Posts: 142

Original Poster
Rep: Reputation: 12
Quote:
Originally Posted by yooy View Post
what were you trying to ping? maybe there is a dns problem. Try checking connection information in network manager if something's missing.
I'm pinging one of my Solaris computers. I don't think it could be a DNS problem because I have the host name and IP address specified in /etc/hosts. Here's the connection information:

Quote:
Interfaces: Ethernet (eth0)
Hardware Address: (hidden)
Driver: atl1c
Speed: 100 Mb/s
Security: None

IP Address: 192.168.1.121
Broadcast Address: 192.168.1.255
Subnet Mask: 255.255.255.0
Primary DNS: 216.229.32.165 # I manually set the Primary and Secondary DNS in /etc/resolv.conf
Secondary DNS: 216.229.32.169
 
Old 06-11-2010, 07:25 AM   #4
16pide
Member
 
Registered: Jan 2010
Posts: 418

Rep: Reputation: 83
here is a bit of homework for you. Please run the following command in a terminal (gnome-terminal for example):

#first run as root
su -
ifconfig
#then ask ethtool what it thinks of your network connection (replace eth0 with the name of your interface if necessary).
ethtool eth0
#check your routing table
route

# then do a ping and give us the command and the result.

Quote:
here is how it works on my system:
[georges@t61 ~]$ su -
Password:
[root@t61 ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:1E:37:827:BF
inet addr:192.168.10.60 Bcast:192.168.10.255 Mask:255.255.255.0
inet6 addr: fe80::21e:37ff:fe82:d7bf/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1147099 errors:0 dropped:0 overruns:0 frame:0
TX packets:69325 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1369610681 (1.2 GiB) TX bytes:38502200 (36.7 MiB)
Memory:fe000000-fe020000

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:44850 errors:0 dropped:0 overruns:0 frame:0
TX packets:44850 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3548451 (3.3 MiB) TX bytes:3548451 (3.3 MiB)

wlan0 Link encap:Ethernet HWaddr 00:1C:BF:68:32:F8
inet addr:192.168.88.101 Bcast:192.168.88.255 Mask:255.255.255.0
inet6 addr: fe80::21c:bfff:fe68:32f8/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1139097 errors:0 dropped:0 overruns:0 frame:0
TX packets:950974 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:970092828 (925.1 MiB) TX bytes:134088030 (127.8 MiB)

wmaster0 Link encap:UNSPEC HWaddr 00-1C-BF-68-32-F8-E1-C9-00-00-00-00-00-00-00-00
UP RUNNING MTU:0 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:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

[root@t61 ~]# ethtool eth0
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbag
Wake-on: g
Current message level: 0x00000001 (1)
Link detected: yes
[root@t61 ~]# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.10.0 * 255.255.255.0 U 1 0 0 eth0
192.168.88.0 * 255.255.255.0 U 2 0 0 wlan0
default netgear 0.0.0.0 UG 0 0 0 wlan0
[root@t61 ~]# ping 192.168.88.1
PING 192.168.88.1 (192.168.88.1) 56(84) bytes of data.
64 bytes from 192.168.88.1: icmp_seq=1 ttl=255 time=2.32 ms
64 bytes from 192.168.88.1: icmp_seq=2 ttl=255 time=1.94 ms
^C
--- 192.168.88.1 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1744ms
rtt min/avg/max/mdev = 1.946/2.137/2.328/0.191 ms
 
  


Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
[SOLVED] How do I switch the network manager from YAST back to the default network manager? skykooler SUSE / openSUSE 7 03-09-2010 06:28 PM
Connection to internal network from server - no ping no ssh tweekzilla Linux - Networking 1 12-10-2007 10:19 PM
No network connection, unable to ping netgear router from RH Linux alak123 Linux - Hardware 9 05-06-2006 12:11 PM
No network connection, unable to ping netgear router from RH Linux alak123 Linux - Hardware 4 05-03-2006 10:39 PM
network connection manager Tobitas SUSE / openSUSE 1 04-02-2006 09:22 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Laptop and Netbook

All times are GMT -5. The time now is 06:16 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration