Ethernet is a way of connecting computers together in a local area network or LAN.

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Why do I get IP 10.42.0.1 when plugging in an Ethernet cable?

For a few months I have the problem on my Ubuntu 14.04 box that when I plug in my Ethernet cable into, I get the IP 10.42.0.1 assigned instead of getting an IP via DHCP. I can fix this problem ...
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can't access internet via ethernet, but i can via WiFi

what happens is my laptop connects to the router via lan cable but I can't access internet. while on my other laptop I can. Thought it was a lan cable issue, so replaced it. Still the same problem ...
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Cannot connect to wired connection after clean install (both 14.02 LTS and 15.04)

I just built a new PC and successfully installed Ubuntu without any errors. However, I cannot seem to connect to a wired ethernet cable. The ethernet works, because I can plug it into a different ...
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Configure two ipaddress from same subnet using 2 Bridged adaptor VirtualBox

I have configured 2 interface with 2 Bridged adaptors in Virtual Box from same subnet, the /etc/network/interfaces file configuration for two bridge network is shown below. auto eth0 iface eth0 inet ...
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10 views

USB Mobile internet and ethernet not recognized on Ubuntu 14.04

I'm having problem with recognizing ethernet and Mobile internet. I am able to connect to wifi, but Ubuntu 14.04 doesen't recognize ethernet and Mobile. My ethernet cable is pluged in, and so is my ...
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47 views

Ethernet Connection Not Work (Xubuntu 15.04)

I've been looking around and trying the answers in other places, but none of them have worked so far. I have an ethernet connection on an old laptop. I'm using Xubuntu 15.04. This ethernet connection ...
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107 views

Wireless, Ethernet and Bluethooth not working with lenovo G5080 under Ubuntu 12.04.5/14.04 64bit

I have Lenovo G50-80 laptop and installed Ubuntu 12.04.05 or 14.04 for 64 bit. But I can't establish a wireless connection or a ethernet connection. $ lspci -nnk | grep -iA2 net 02:00.0 Ethernet ...
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Ubuntu14.04.02 x64 wired-connection keeps disconnecting

The wired-connection keeps disconnecting but the wireless doesn't have any problem. I tried reboot create new connection apt-get update/upgrade But the problem hasn't been solved at all. Now I ...
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27 views

Eth0 lost when ethernet is using crossed cable

I am using Ubuntu 12.04 and I made changes on Interfaces file to change the IP of my touch computer. After reboot everything works well if I am connected with normal Ethernet cable to a Hub or router, ...
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Ubuntu 14.04.2 32 bit desktop version Ethernet is not working

installed Ubuntu 14.04.2 32 bit desktop version Ethernet is not working using first time Ubuntu no wifi hardware in desktop system
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DSL problem in ubuntu 15.04

Network is not connecting, I get the error message (1) Creating object for path '/org/freedesktop/NetworkManager/ActivationConnection/4' failed in libnm-glib.
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every time Software Updater installs something new,ethernet adapter goes wrong

After Software Updater installed something,my network didn't work.it seemed that ethernet adapter driver was updated and the new driver didn't work on my computer.so i have to install the old one ...
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Wired connection and Driver install was automatic on Live USB, after install it won't even recognize cable is plugged in

When I first tried the Live 12.04 it automatically found the drivers necessary for my wireless to connect , and when I plugged my ethernet cable in it immediately read it and connected to my ...
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Why does my eth0 interface always shows the same inet addr in different LAN

Problem in my Ubuntu 14.04 is eth0 interface always shows the same inet address regardless of network in which I am and the name of the interface has also changed from eth0 to eth1 due to some unknown ...
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You are offline now, erthernet problem!

I restated the service nework manager etc but with no succes.Leds are working fine on adaptor. dimitris@dimitris-G31M-ES2L:~$ sudo service network-manager restart network-manager stop/waiting ...
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Unable to find ethernet network

There is no option to connect to an ethernet network . When I open System Settings > Network > Wired and click options it responds Error editing connection Unable to find a connection with UUID ...
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28 views

New Internet Connection in Ubuntu 14.04

My ISP provided me the Ethernet Cable only and no router and configured the new network connection in Windows using username, password and service name (using dialup). How to setup this connection in ...
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Manually Shift from a Wireless Connection to Wired Connection on a Desktop Computer

I have a desktop computer using Ubuntu 14.04 where the wired network card appears to be getting flaky. Occasionally, even-though there is no wireless Ethernet card in the desktop computer, the ...
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Can't get ethernet connection to work with 'Intel Corporation 82579LM Gigabit Network Connection (rev 04)' on Ubuntu 15.04

I am trying to get ethernet connection to work on a hp compaq 8200 elite sff computer, but with no success so far. When i plug in an ethernet cable, the network icon starts the searching animation, ...
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add additional ip in ubuntu 14.04

vi /etc/sysconfig/network-scripts/ifcfg-eth1 DEVICE="eth1" HWADDR="FA:16:XX:XX:XX:XX" BOOTPROTO="static" NM_CONTROLLED="no" ONBOOT="yes" TYPE="Ethernet" IPADDR="157.0.0.101" ...
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14 views

Open NAT with ICS

I've been trying for days to achieve an open NAT with ICS ubuntu 14, It is open when I use windows 8 to bridge but I wish to move over to ubuntu but this is stopping me connecting to friends online ...
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Ubuntu 14.04.2 LTS Ethernet connection doesn't work until reboot

Everytime I start from computer off, it shows that my Ethernet connection is working, however, it doesn't work until a reboot. After that, it works well. Does anyone have an answer for this problem?
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How can I route between different network using multiple ethernet card?

I have two ethernet card in the PC, eth0 is connected to the local network(192.168.0.0/24), and the other is connected to the internet. I can reach all the devices which are connected to this ...
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Ubuntu does not detect onboard Ethernet

I have just replaced my old broken motherboard with a new one. I did not format my HD because Ubuntu 15.04 just started as I hoped. The first time I booted my OS, internet was going great so Ethernet ...
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Dual OS, Xubuntu works, Windows 7 no internet, and black screen

I'm having a similar problem. I bought my Lenovo ThinkPad L450 without any OS installed. I first installed just Xubuntu without any trouble, all was working well including no trouble connecting to ...
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37 views

usb ethernet cable

Does anyone know how to connect a ubuntu laptop to the internet via USB and ethernet? I tried to connect my Sony vaio laptop to the internet via an ordinary USB-ethernet-cable but it turns out I (and ...
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Internet (cable) not working on Ubuntu 14.04

I have quiet strange problem. Ethernet should be work but it does not. I do not know why. If someone could help me that would be great. The network card is detected: sudo lshw -C network lspci ...
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40 views

Can't Connect to Internet After Upgrading from 12.04 to 14.04

I recently upgraded from 12.04 to 14.04, and unfortunately afterwards I couldn't connect to the internet, either via ethernet or wifi. It could detect the cable and wifi networks, but it just couldn't ...
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Problem with Ethernet connection on PC, integrated network card (Ubuntu 14.04)

In the network manager : unplugged cable (but cable allright), I dissconect and connect - dont solve the problem. If lspci -nnk | grep -iA2 net - I have this: Ethernet controller [0200]: Realtek ...
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Connect Windows 8.1 to Ubuntu 14.04 using crossover cable

I have a Windows 8.1 and Ubuntu14.04 LTS Computers. I want to connect them to each other using Crossover cable so that I could Transfer files from Ubuntu to windows and back. Can anyone tell me how to ...
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Ubuntu 14.04 Two Ethernet Connection Not Working Together

I am having issue of connecting two Ethernet connection at once on Ubuntu 14.04. It allows only one connection at a time. Even if I just only connect cable and not add any Ethernet settings to the ...
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Ethernet port not working

I'm running 15.04. WiFi is working fine, ethernet not working at all. Have run sudo lshw -C network and this is my output: *-network UNCLAIMED description: Ethernet controller product: ...
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Ethernet Network is disabled in 14.04LTS

When I first used Ubuntu 14.04LTS, I could use the ethernet network option in the network menubar to connect with lan, use the ftp server or browse another pc to share anything. I just need to connect ...
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42 views

Ethernet Network card BCM4401-B0 no longer recognised?

I updated Ubuntu to 14.04 LTS and I can no longer see my network - No network devices available shows in the network drop down menu. Networking is enabled and if I choose to boot my Dell Inspiron 1300 ...
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How to connect Dual NICs in same system to each other

OK here is what I want to do, it may seem odd but its part of a piece of test equipment and I'm trying to validate that both Ethernet connections work on the same system. I have a system (many ...
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51 views

ifdown: interface eth1.10 not configured Ignoring unknown interface eth1.10=eth1.10

Trying to add a vlan pool: This is the entry that I had made in the /etc/network/interfaces file: iface eth1.10 inet static address 172.85.85.1 netmask 255.255.255.0 ...
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31 views

Ethernet not being detected in ubuntu14.04

I have DELL inspiron 15R laptop with dual boot windows8.1 and ubuntu14.04 LTS . My ethernet is workinh properly in Win8.1 but when i connect it in Ubuntu, it shows auto-ethernet and nothing happens ...
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Network & WiFi problem not working on lenovo G50-70

This is my first use of Ubuntu. I installed ubuntu 14.4 but the WiFi is not working. I don't understand how to activate them. What should I do? lspci -knn | grep Net -A2 && rfkill list: ...
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Random USB ports turned off and ethernet not working

Bear with me, there's a lot to get through. I built a computer with the intention of writing android software as a project. Initially I installed Ubuntu and I couldn't, for the life of me, get the ...
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15.04 WiFi&Wired fail w v2.19 kernels; work on 15.04 w v.2.16 kernel from 14.10. Toshiba NB15t-A

Neither WiFi nor Wired will connect on 15.04 w v2.19 kernels (or v. 3 from kernel.org) but work with 14.10's v.2.16 kernels on Toshiba Satellite NB15t-A. Title says it all. Neither will connect, ...
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Sharing wired internet connection via router

I'm trying to set up a desktop which is running Ubuntu 14.04 to share existing ethernet connection to a router. The existing ethernet connection is an onboard connection and the output ethernet will ...
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63 views

Remove network interface permanently

I'm trying to remove a network interface permanently. For some reason, ifconfig lists eth0 and eth1, although the latter RX/TX metrics remain at zero. I suspect that extra eth1 entry might be causing ...
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How does the system admin gets the ethernet address of computers in the network?

I am very new to system administration. Have a doubt, how does the system admin gets the Ethernet address information of the computers in the network. Actually my doubt is how does he determine the ...
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ethernet shows connection but cant connect to internet [closed]

My system: ubuntu 14.04 LTS dual boot with WIN 8 motherboard: msi z97s I followed these instructions: How to setup a wired network in the IPv4 network settings? ...
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Network manager applet doesn't show wired network connection

I have the latest installs of network-manager and network-manager-gnome. I installed Ubuntu Server LTS 14.04, then installed Cinnamon on top of that. I have LAN network connection (can browse, etc.). ...
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Ethernet is getting slow after few seconds in Ubuntu 14.04

I am using Ubuntu 14.04. The Ethernet net is keep getting slow after few second of plug the wire. I could not browse anything. When I replug the wire it starts and after few seconds again slow down. ...
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ifconfig sets wrong broadcast until ran again

This issue is very confusing for me. ifconfig sets a different broadcast address then specified, until I run the same command again. I'm trying to change the eth0 interface: inet addr:172.23.5.1 ...
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392 views

15.04 vivid vervet intermittent selective network outages

I recently upgraded from 14.10 to 15.04 and immediately after the upgrade was finished, I began having network problems. At first I thought the errors were related to my squid3 cache, but I have ruled ...
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43 views

How to use DSL connection and ethernet Network concurrently

In my university, we use a dial up network for internet. Apart from that we are also connected with Ethernet network. By this we can access shared folders of other friends. But In windows we did it ...
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How do I add an additional IPv6 address to /etc/network/interfaces?

this question How do I add an additional IP address to /etc/network/interfaces? mostly asks what i want except that i want to add more IPv6 addresses in the same interface eth0 without incrementing to ...