Networking :: Not Able To See Eth0 In Network Icon

Jan 23, 2011

I was browsing the net very well and without any issues for the past 15 days since I installed FC14. Fantastic experience and then suddenly yesterday after nearly 2 hours of a smooth online session I lost internet connectiivity.At that point I noticed that the network icon on top was showing a red cross. After clicking on it I could NOT eth0. I specifically remember seeing it there before.I checked the cables and the setting to no avail and just could not get it back. Any idea what I should be doing to see eth0 in the connection?Also FYI I have been noticing this from day one since I installed FC14----When going through administration-->network-->One cannot see the red and GREEN activate button that I am used to seeing in FC9. In fc14 its greyed out. So I actually had to go and enter the /etc/init.d/network start command to change the status from inactivate to activate.Also the network manager does not seem to be managing eth01 as it does not appear as an entry in its console.

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Ubuntu Networking :: Wireless Network Icon Shows "lock" Icon When Trying To Connect

May 16, 2010

3 computers in the house run various windows based programs and everything is fine with them connecting to the internet as far as putting in the security password to log in and get online.My old back up computer that I use in the basement that has Ubuntu 9.10 was working fine with the secured network situation up until today.I booted up the computer this morning and it automatically connected as it typically does and I was reading some email and then the computer froze, which on rare occasions it does.

Upon reboot I got a window that asked for the password for the Network Manager Applet which I supplied and then it asked for the password for the secured internet connection which I supplied.It would not connect. After numerous tries of disabling the wireless and enabling the wireless and entering the Network Manager Applet password and the secured internet password I still get no connection.

I notice that when it is trying to connect, the window comes up on the screen that shows that there is reception from the modem, but there is also a little "lock" icon like I'm locked out of the connection.I finally found a way to get rid of the Network Manager Applet password problem but that still didn't alleviate the connection problem.

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Ubuntu Networking :: Why Etc/network/interfaces Does Not Contain Eth0

Jan 1, 2011

So far as my knowledge goes, /etc/network/interfaces is supposed to contain a list of all the available interfaces. But my /etc/network/interfaces looks like this,auto loiface lo inet loopbackBut I have a perfectly working eth0 connection. Why does not it appear here?

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Ubuntu Networking :: Auto Eth0 - Network - Won't Connect ?

May 2, 2010

Upgraded To Ubuntu 10.04 The Other Day. And when I first installed it everything worked great except for my sound card which I fixed. But there was no problem with connecting to my Router via an Ethernet cable. Then I updated the video card drivers, restarted my PC and it wouldn't connect. It would try over around 1-2 mins then tell me its disconnected. No green light activity on the router / network card either.

I've reinstalled fresh copies of Ubuntu a couple of times now, Hoping to get the default settings back. But nothing has worked since.

I looked around the net and found quite a few people had this problem on previous versions of Ubuntu but it would seem most of there fixes were for there Version, so it hasn't helped me.

Heres some info:

ifconfig:

I've tried all the various things from dhclient to ifup/ifdown etc etc.

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Ubuntu Networking :: Eth0 Won't Enable - No Network Connectivity

Aug 24, 2010

Trying to get the wired nic working so I can troubleshoot the wireless. I cannot get any kind of network activity. Been searching so I will post a little information that seems to be common with my situation.

lshw -C network

reveals:

WARNING: you should run this program as super-user.
*-network DISABLED
description: Ethernet interface
product: 82562EZ 10/100 Ethernet Controller
vendor: Intel Corporation

[code]....

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Ubuntu Networking :: Eth0 Is Not Showing In Network Connection?

Sep 25, 2010

I have recently upgraded the ubuntu desktop edition from 8.04 to 10.04. after upgrading i cannot show my eth0 nic interface in the System > Preferences > Network connections----- wired tab. and i also not getting network indication in the top of the panel beside the date time indication. but i can access network and using internet with that lan card. i cant understad my eth0 is connected or unpluged..

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Ubuntu Networking :: Eth0 Not Visible In Network Connections?

Jan 24, 2011

Since I installed ubuntu 10.04 I dont see my eth0 card in System->Preferences->Network _connections. Everything works fine but it puzzles me. In ifconfig iI just see the eth0, networking seems to be working fine, but it keeps puzzling me. Adding theinterface is no solution: add it and it doesnt show again

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Ubuntu Networking :: Auto Eth0 Connected But No Network

Jul 21, 2011

I am using BSNL broadband ISP and I am able to get network on windows os but not on my ubuntu.( I have a dual boot). I see Auto eth0 connected from the notification but when i am pinging [URL]... it says unknown host.

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Networking :: Route Add - Eth0 SIOCADDRT: Network Is Unreachable

Jan 18, 2010

I want to add this route but I am getting this error message. What is the reason of this problem? I cant add this route? how can i add?

Code: [root@linux/]# route add -net 10.1.0.0 netmask 255.255.0.0 gw 10.2.0.1 eth0 SIOCADDRT: Network is unreachable

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Fedora Networking :: Did Network Manager Kill Eth0 Access

May 6, 2010

I have a troubling networking situation that is compounded by the system being remote without any out-of-band mgmt in place nor a serial connection - but am relying on a coworker entering commands into the terminal for me, or doing stuff in the GUI I have an FC12 i386 install running, that was up and stable for 6 days. Primarily this was only being used for a deployment of nTop. Up through Monday evening, I was connecting to the system (in NY) via VNC (here in SF), and was successfully watching nTop do its thing.

Tuesday morning, I go to connect to SSH and I can't get in. The NAT translation is still in place on the firewall, but there is no connection to the NIC/eth0 from the router. This is what I've had my coworker run:

[code]...

I was going to try and have her run the /sbin/mii-tool eth0 tomorrow a.m. just to verify that the interface isn't physically bad? But this is a brand new desktop, and I can't for the life of me understand why this interface went down. I also have the internal IP on a DHCP reservation, which is the same IP listed in IPADDR in the ifcfg-eth0 file - could this be a problem? should I remove the DHCP reservation? I did this so I could SSH to a public IP which I have NAT'd back to the internal 10.0.x.x address I had my coworker take a look at the GUI, and the eth0 properties are "inactive" and the "Activate|Deactivate" buttons are greyed out.I suppose I can have my coworker grab the /var/log/messages and copy to a USB drive, then email me that from another workstation.

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Ubuntu Networking :: Change Network Card And Bring Eth0 Up

Mar 14, 2010

I run an Ubuntu Server in a Virtualbox environment. Setup works fine. In virtualbox, I accidentally hit a button that generates and assigns a new mac address for the network adapter. Since then the machine does not bring eth0 up. I tried the following ifconfig eth0 down; ifconfig eth0 hw ether macaddress; ifconfig eth0 up. Then restarted networking.

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Ubuntu Networking :: Sharing Internet/LAN Eth0 Connection Via Wi-fi Ad-hoc Network

Dec 1, 2010

I've got access to my LAN and the Internet via my wired ethernet connection. I'd like to share that access with my iPod Touch (device shouldn't really matter) via an Ad-hoc wi-fi network.

This tutorial in the docs seems to describe the right setup but is very out of date (7.04). Instead I found this tutorial and followed it to create the Ad-hoc wireless network. I was able to connect my touch to the resulting ad-hoc network without a problem, but I didn't have LAN/Internet access.What's the next step to get the clients on the ad-hoc network out to the Internet?I found this page in the docs that says I'd need to install dnsmasq-base and uninstalling dnsmasq. I checked and dnsmasq-base is already installed but dnsmasq is not. I do have dnsmasq in /usr/sbin but the package description makes it sound like this should come with dnsmasq. Is the page out of date? Will uninstalling dnsmasq cause other problems?

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Ubuntu Networking :: Lan Setup - Connecting To Eth0 Then Network Disconnected

Dec 22, 2010

i have limited experience with Ubuntu and Linux for that matter. i know my way around for the most part but i come from windows. anyway. i have 6 dell gx260 computers. i also have a netgear 8 port Ethernet switch. now im just trying to get the computers to see each other. simple for me in windows. but i have no idea where to start here. it just says connecting to eth0 then network disconnected. and thats it. for now im just working with 2 of the computers. the others are not set up yet. i have been googling for 3 days and got nothing that helps. (my goal after they see each other is to share files back and forth. and also to have one of them control the others with some type of remote desktop. but thats for another day.)

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Ubuntu Networking :: Connection To Network - Terminal: Ifup Eth0 Don't Fix Until Next Reboot

Mar 3, 2010

I have my ubuntu box hard wired into my network. It all works fine, until I reboot my ubuntu box. After reboot, it can no longer see the network. I have it set up with a static ip. Not sure that I set it up completely correctly but it works fine...when working.. To fix the problem, I enter terminal: ifup eth0 That fixes all know problems until next reboot. What do I need to do so that it will remember settings and automatically be hooked into the network at power up?

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Ubuntu Networking :: Network-Manager Reverts Back To Auto Eth0

May 3, 2010

I'm running Kubuntu 10.4. My problem is that Network Manager keeps defaulting back to Auto eth0. I have created a new wired connection and set my manual addresses. I have ticked the 'connect automatically' button. Every time I reboot or wake up it reverts back to Auto eth0.I did have wicd installed but this was not reconnecting after wake up (said it was connected but I couldn't ping etc), this is a pain also.

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Networking :: OpenSuSE / Yast / Network Settings: Gateway Eth0 Through Wlan1?

Dec 16, 2010

I have a laptop running OpenSuSE 11.2. I use the Yast menu to set up network settings via "traditional" ifconfig setup (not NetworkManager), because I found NM unusable in prior releases when doing network gymnastics such as router re-flashing, LAN reconfiguration, etc. where I needed control of the IP address, netmask, DHCP, tftp, etc. My laptop works fine with Yast "traditional" ifconfig configuration for eth0 connected to router to Internet. Works fine with Yast ifconfig configuration for USB WiFi as wlan1 to WiFi router to Internet. Also works fine for virtual machines on vmnets NAT-ed to the Internet. Works fine as long as there is only one network connection, that is.

Now, I have a second laptop. I want to network laptop #2 eth0 to laptop #1 eth0 for file transfer and/or Internet access WHILE laptop #1 is is linked to the Internet through wlan1. Unfortunately, I have not figured out how to get Yast/Network Configuration to do that. I have not been able to get Yast/Network Configuration to see both wlan1 and eth0 at the same time--when the Yast utility finishes, I do >ifconfig and >route, and I find that I have lost either eth0 or wlan1. Thus, when I do direct-connect file transfers, I loose the WiFi Internet connection on both machines.

I suspect that it might have something to do with Yast/Network Configuration utility not being able to handle two network interfaces on the host with different IP addresses. how to properly put an OpenSuSE machine on two networks simultaneously? And then how to turn on IP forwarding so that I can use laptop #1's WiFi as an Internet gateway for laptop #2?

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Networking :: Eth0 Fixed IP - Eth1 DHCP Gateway - Access To Eth0?

Aug 19, 2009

5.10 Breezy configured as machine controller. Works great eth0 is a fixed IP to communicate with controller comms board. Not easy at all to alter - the comms board is hard coded to listen on eth0 for commands.

I can use eth1 as the default gateway and ping google.com, etc. But when I now attempt to communicate with the controller with netcat, e.g.

Code: echo !HH | nc 192.168.1.6 80

I obviously never get an answer since the request is passed via eth1. Using the -g option with netcat doesn't work either. I had a look at iptables but it doesn't seem to be able to do what I want. How I can still use eth0 as my communication port to the controller whilst eth1 is the default gateway?

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Networking :: Production Server With Static IPs On Eth0 And Eth0:1 - Getting Private LAN On Eth1?

Jul 1, 2010

I have two servers on a vlan at my datacentre/colocation and previously both servers had public IPs on their eth0 interfaces. The servers are HP ProLiant DL360s - one is a G4 and one is a G5 The newer G5 is now the LAMP server and the G4 has been retired and I want to repurpose it as an iSCSI target using openfiler freenas or similar.

My G5 has public/static IPs lashed to the eth0 physical interface and the eth1 is not configured to do anything yet. The G4 will have both interfaces available - perhaps one for ssh access from one of my static public IPs and the other to be a private IP on the local vlan. Here is what I am trying to get my head around...

The G5
eth0 - Public IP - full LAMP services on two or three virtual interfaces
eth1 - Private IP 192.168.0.1
The G4
eth0 - Public IP for ssh
eth1 - Private IP 192.168.0.2

Because my traffic between eth1 on these boxes is via private IPs on the local private vlan it doesn't add to my quota for bandwidth. How do I go about configuring the routing and gateways and other aspects of this so that I can run a private IP space network between the eth1s and still serve the outside world from the eth0s...

I am afraid that if I assign the private IPs to the eth1 interfaces the routing may either not work or interfere with the access to the production internet facing interfaces (eth0s).

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Ubuntu Networking :: Messed Up /etc/network/interfaces - Original Auto Eth0 Setup Is Missing

May 24, 2010

I'm trying to setup my interfaces along side GNS3 for study purposes, and came across a ..... vid saying to try this (my current config)

[Code]....

I'm praying for some crappy syntax error, also in Network Connections... its now blank, the original auto eth0 setup is missing

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Ubuntu Networking :: Check The Network Connection Applet, It Display Active Information Of Eth0?

Jun 7, 2010

I have a question regarding the configuration of Network Connection. My wired connection is fine right now and when I check the network connection applet, it display active information of eth0. However, when I click the Configure button, the Network Connection window appears but there's nothing in the Wired panel. Should there be a eth0 in that panel? I remember I had one before, but after I messed with some configuration of VPN, my network became unstable and I remove the Network Manager to try to solve the problem. Since then, there's nothing in my Network Connection window, though I can still connect to my router with eth0. Now even after I reinstalled the Network Manager, I still don't get anything.

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Networking :: Ignoring The Unknown Interface Eth0=eth0?

Dec 18, 2010

I'm running a dual boot Ubuntu 10.04/Backtrack 4 (Ubuntu 8.10) system. I can get internet in the BT4 side but not in the Lucid side. In Lucid I can ping my router, and the network manager says I'm good to go, but I can't get to any web sites. It all started when I tried to put my laptop on another network by mimicking the settings of a computer I had just unplugged from the network. MAC address and all.

ifconfig eth0:

Code:

eth0 Link encap:Ethernet HWaddr 00:1f:16:ba:4c:8c
inet addr:10.136.9.147 Bcast:10.136.9.159 Mask:255.255.255.240
inet6 addr: fe80::21f:16ff:feba:4c8c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

[code]....

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Ubuntu Networking :: 10.04 - No Network Connection Icon

May 18, 2010

I'm a complete beginner who just installed 10.04. I'm trying to follow guides to setup my internet connection, but I am completely unable to locate the Network Manager Icon. I have the notification area already, but there is no icon. I tried the instructions here
After inputting
nm-applet --sm-disable
It gave me:
** (nm-applet:1722): WARNING **: <WARN> constructor(): Couldn't initialize the D-Bus manager.

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Ubuntu Networking :: Re-activate Network Icon

Nov 22, 2010

i'm try to find what i can do to reactivate the network icon (where i can select the wifi network i want to connect), which are usualy on the 'tableau de bord'

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Networking :: 10.04 - Network Manager Icon Suddenly Went Off

May 24, 2011

I have been using ubuntu 10.04 LTS for the last 5 months, used tata photon plus for networking. Everything went fine when couple of days ago, after doing normal updates as listed by the update manager, sound went off.. to solve this, I had to remove and reinstall certain packages as listed in [URL] ...+documentation, I had to restart, after restarting, the sound problem was gone but the network manager icon went off, the modem was not getting power from the computer though the LAN wire was connected. To add to dismay, the mobile broadband connections that I had added to the network manager were gone. I tried adding the tata photon plus (huwaein) again but could not be added, reinstalled usb-mode switch data and related packages, but still the computer does not detect the photon as usb device. I have broadband dsl connection and tata photon plus too but cant use any of them.

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Fedora Networking :: No Network Icon Is Shown On Top Right Corner

Nov 11, 2010

I have installed fedora 13 on my dell inspiron 14 r laptop recently.but no network icon is shown on top right corner.well i tried from system menu list and manually configured it.i have wired connection and tried my best but unable to browse the net.

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Ubuntu Networking :: Wireless Network Available - Then Icon Disappeared

Apr 6, 2010

When the laptop boots I get a very brief message to say "wireless network available, click on icon". But it disappears in a second. I'm not clear whether my WL-140 card is in device wlan0 or wmaster0. Here's what lshw -C network says...
*-network
description: Wireless interface
product: ISL3886 [Prism Javelin/Prism Xbow]
vendor: Intersil Corporation
physical id: 2
bus info: pci@0000:06:00.0
logical name: wmaster0
version: 01
serial: 00:0c:f6:14:a4:35
width: 32 bits
clock: 33MHz .....

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Ubuntu Networking :: How To Get Network Icon On Task Bar Back

Jun 22, 2010

Got rid of the network icon on task bar, how can I get it back?

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Ubuntu Networking :: Network Manager Icon Gone Missing?

Sep 3, 2010

(Ubuntu 10.04)I've been struggling for over a week now to get the network-manager icon back in the notification applet. I don't exactly know how and when it disappeared, but I have not been able to get it back eversince. I need it to start a VPN connection.To be clear:- The notification applet is running (battery icon etc is showing)- Network manager is running- Wireless connection works flawlesslyWhat I've tried so far:Solution 1 (did not work)

Code:
sudo nm-applet --sm-disable
Gives me

[code]....

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Ubuntu Networking :: No Network Manager Icon In Top Corner

Oct 21, 2010

After a recent dist-upgrade I have lost my network.There is no Network manager icon in the top corner.My switch and the RJ45 port on the PC are both lit green and connected. There is an internet connection from the other PC on the LAN.I am now able to ping the other PC on the LAN but still no internet!My router is at 192.168.0.1 so I have also tried:sudo route add default gw 192.168.0.1.

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Ubuntu Networking :: Update Took Out Network-Manager Icon

May 27, 2011

Using Ubuntu 10.04 (2.6.32-31)on a Dell studio today.Update manager offered four updates, one about networking. I accepted. After restart the Network-Manager icon had vanished from the tool bar and was replaced by a second loudspeaker control icon. No ability to link to the internet. Starting Network-Manager from the pull-down menus did not help.Muggins Noob thought, un/re-install Network Manager. Duh! Uninstall is fine, but re-installing from the web without Network-Manager, tricky. Sadly no ethernet wire available, either wifi or GSM/3G.

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