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

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Configure second network card/interface

i'm configuring one server (ubuntu 12.04 64bits, with kvm) with 2 card adapters. The first one (eth0) is configured to work with virtual bridge (vbr0) for the DMZ interface. Ho can i condigure the ...
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21 views

Ubuntu 14.04 Wired Network Connection does not work

Running Ubuntu 14.04 on my laptop I can connect to the internet wirelessly no problem but when I try to connect to the router via a lan cable I am unable to get a connection. It seems I am unable to ...
0
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1answer
42 views

use of eth0 and wlan0

I have a simple Arduino HTTP Server and I want to browse this server from my Ubuntu. If I assign to Arduino an IP 192.168.0.9 and I connect the Arduino HTTP Server to my router (to any of the 4 ...
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30 views

Ubuntu doesn't connect to ethernet, it works only on second connection

I have ubuntu 14.04 running on a lenovo w540 About a month ago suddenly I had no ethernet connection, At the begining it worked only if I type sudo dhclient -v eth0 I played a little bit, and re ...
0
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1answer
5k views

Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E

I had Ubuntu 11.10 and in the last few weeks I experienced an obscure problem: after I had the computer running for a few days I could no longer connect to google.com or anything related to google. ...
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0answers
17 views

Network Bonding Ethernet and Wifi

I am trying to bond my Ethernet (eth0) and Wifi (wlan0) connection to increase aggregate bandwidth. (They are both on different networks with different bandwidth allocations.) So far I've attempted ...
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2answers
4k views

ifconfig eth0 eth0: error fetching interface information: Device not found

I'm new to Ubuntu. In my system WIFI is working fine but Ethernet is not working fine. ifconfig -a lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 ...
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1answer
28 views

Is r8168 installer in ubuntu software center secure and working?

Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06) that is what Ethernet Card I have. I have a question: I am using 14.10 and I have found issue with ...
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28 views

Can not connect to Ethernet on Ubuntu 14.04

I just recently got Ubuntu, after installation I can't seem to connect to the Internet via Ethernet. I need help.
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3answers
2k views

Why do Ethernet devices not show up in “/dev”?

Generally I have noticed that plugging in a new device in a Linux system causes a new entry to be listed in /dev (assuming you have the correct drivers). For example: When you plug in a new hard ...
0
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1answer
60 views

What is the meaning of p3p1, p2p1, p1p1 network device?

The devices that used typically to be called eth0 now seem to be p3p1, p2p1, p1p1. I presume the name means something, but have been unable to find out what. I think it is not related in any way to ...
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28 views

How can I get an Internet connection from another computer using Ethernet?

My wife and I use our laptops in the dining room. Our wireless router is in the computer room, which is far away. We connect using the our laptops. Unfortunately, my wireless adapter just broke. My ...
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4answers
10k views

Qualcomm Atheros AR8172 Driver fix? (lenovo g500s)

Recently I took a lenovo g500s laptop. the product id is LENOVO_MT_20245. after the installation, it could not recognize LAN network adapter. After googling I found out that it has a Qualcomm Atheros ...
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0answers
57 views

I recently installed Ubuntu 14.10 on my Laptop and Ethernet wont work whatsoever

I ran some commands like lspci -nn and the output is as follows: 00:00.0 Host bridge [0600]: Intel Corporation 3rd Gen Core processor DRAM Controller [8086:0154] (rev 09) 00:01.0 PCI bridge [0604]: ...
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3answers
3k views

Wired Network (eth0) disappears on a Lenovo Z570

I upgraded from Ubuntu 11.10 to 12.04 yesterday. I am running a BSNL Broadband DSL conenction. The wired network suddenly dissapears and the computer stops detecting the ethernet card after sometime. ...
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2answers
670 views

How to get Wifi working on Ubuntu 14.04 (Macbook Pro Retina 15 inch - 2014)

I just downloaded Ubuntu 14.04 on my Macbook Pro Retina 15 inch 2014 version using usb. My problem is I can't get the Wifi working. No wifi connections would display on the wifi menu. I've tried ...
0
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1answer
36 views

How is a device managed when not in /etc/network/interfaces on Servers?

On my Ubuntu Server, 14.04.1 LTS, I have not specified any devices in /etc/network/interfaces, yet they (multiple ethernets) work completely as intended with static IP. I have heard from multiple ...
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0answers
18 views

Ubuntu tries to access internet via iPhone rather than wi-fi

I've just installed a fresh copy of Ubuntu 14.04, and then entered my credentials onto the wifi to access the internet. Everything seemed fine. Then, I plugged in my iPhone via USB to charge it. Now, ...
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0answers
35 views

Ethernet (intermittent) +wifi (not working) in 14.04 on HP Elitebook 725

I have purchased an HP Elitebook 725 and installed Ubuntu to dual boot with Windows. Initially I installed 14.10 but, following discussion at http://ubuntuforums.org/showthread.php?t=2254816, I have ...
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156 views

Wired connection not working (on Ubuntu 14.10)

The problem As from the title, I am not able to establish a wired connection with my HP Pavilion dv7-2215el on Ubuntu 14.10 anymore. I've read possibly every related question, but none of those have ...
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1answer
53 views

How do I get eth0 IP address

When I type in this command line I got this.But it did not contain IP address.Actually I want to connect with Raspberry Pi with ssh connection.So do that I want to get IP address of eth0 .If there is ...
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2answers
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RTL8111/8168B Rev 06 Ethernet controller not working with AMD64 Kernels > 2.6

I'm also having trouble with the RTL8111 Ethernet controller. It's not working at all on Ubuntu x64. This is my card: $ lspci -nnk | grep -i net -A2 05:00.0 Ethernet controller [0200]: Realtek ...
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0answers
30 views

Configure router through ethernet and simultaneously access the internet through wifi

As the title says i have a new router that i want to be able configure through Ethernet(will not be used to connect to the internet, just for local experimentation). I also have the WiFi adapter of ...
0
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2answers
5k views

Ubuntu 14.04 Network Problem

I have an issue with my Ubuntu 14.04. I am able to connect to wireless networks without any problems, but when I am in my Dorm Room, I cannot connect to my wired Internet connection. It works fine ...
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2answers
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Ethernet connection is not showing in my ubuntu 14.04

These are outputs of some useful commands:- May it helps... 1.-> ifconfig output--> lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 ...
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2answers
5k views

Cannot connect to ethernet with wired connection Ubuntu 12.10

I am new to Ubuntu (installed Ubuntu 12.10 desktop on my Mac Mini today from Ubuntu iso – mac mini had blank SSD on it i.e. no OS X at all). First drama is that Ubuntu installer seems to be setup for ...
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3answers
11k views

“Wired Network Disconnected” even when connected- no ethernet connection possible

I am unable to connect to the internet via ethernet or wifi. Let's fix the ethernet issue, eh? I just installed Unbuntu 12.04 on an HP Mini 1000. Previously it had 11.04, and the ethernet didn't ...
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0answers
132 views

14.10 Cannot connect to internet through a wired connection. Try before install boot option selected

I'm currently attempting to install 14.1 on a new computer via USB. No Wireless. It's plugged into the ethernet port on a Gigabyte GA-990FXA-UD3 ATX mother board with an AMD FX-6350 3.9 GHz 6 core ...
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2answers
3k views

Ethernet not working on a Dell Inspiron 14z

When I plug in a network cable, it is not recognized. The WI-FI is working properly, though. ifconfig output: lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 ...
0
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1answer
110 views

14.10 Cannot connect to internet through a wired connection. Still trying before install

I'm currently attempting to install 14.1 on a new computer via USB. No Wireless. It's plugged into the ethernet port on a Gigabyte GA-990FXA-UD3 ATX mother board with an AMD FX-6350 3.9 GHz 6 core ...
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0answers
73 views

Cannot connect to internet via ethernet 14.10 still trying to install

I'm currently attempting to install 14.1 on a new computer via USB. No Wireless. It's plugged into the ethernet port on a Gigabyte GA-990FXA-UD3 ATX mother board with an AMD FX-6350 3.9 GHz 6 core ...
0
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1answer
29 views

Ethernet interface Ubuntu 14

My ethernet interface is disabled on Ubuntu 14, I had no problem with Ubuntu 12.
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0answers
44 views

Connecting to Ethernet

I purchased a used Dell computer with Ubuntu running already, and this morning a prompt came on the screen telling me an update was available. I updated everything that was listed and after my system ...
0
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1answer
69 views

Unable to Make Network Connection!

I am brand new to Ubuntu, and have just made a dual boot system, running Windows 7 as well. During the Windows installation, Windows was able to automatically search for a WiFi access point, but ...
0
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1answer
59 views

How to undo eth0 configuration?

I was trying to connect 2 Ubuntu vms on virtualbox. they had the same ip address: 10.0.2.15 with default gate: 10.0.2.2 I tried to change this manually, and here what I did: on the edit connection ...
2
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1answer
223 views

Detected Hardware Unit Hang with 82566DC / e1001e

I am suddenly having problems with a Ubuntu Server install. This machine ran fine with 12.04, 13.10 and also for a while with 14.04. It started doing this: 12:44:34 e1000e 0000:00:19.0 eth0: ...
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28 views

IPv4 & 6 timeouts (14.04, Intel card)

I had intermittent internet connection problems and now I cannot connect at all. I have an Intel ethernet interface with the e1000e driver, which I was able to upgrade to the newest version. I cannot ...
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0answers
56 views

14.04 RealTek RTL8111 not working after update

I got my Ethernet to work after a lot of searching on the internet then I recently installed Ubuntu's(14.04) usual upgrades and my eth0 is not visible. "ifconfig eth0" is not working. Some details ...
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0answers
95 views

Ethernet not working in Ubuntu 14.04 and 14.10

my processor is AMD FX8350 and I tried to install Ubuntu 14.10 and 14.04 (AMD 64). After installing my internet did not work. Tried to enter the settings (IP,Gateway,DNS) manually but no luck and did ...
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2answers
484 views

Disappearing and reappearing ethernet connection

I have internet via ethernet cable plugged in directly into my desktop machine; windows and ubuntu on the same machine. The problem is that after loggin in internet is working (though the speed is ...
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0answers
96 views

Ubuntu 14.04 not using alias em1:1 address

I'm trying to use two IP addresses on a single network device. The device is an onboard NIC and came up as "em0" after initially booting, something I hadn't seen Ubuntu do before. I'm using a ...
0
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1answer
199 views

Ubuntu 14.04 Server Install Unable to Connect to Network via Ethernet

I have tried so much and cannot seem to configure the ethernet network properly. I've looked at past questions that have similar issues but none of them resolved my issues. Note that my ethernet ...
0
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1answer
46 views

No Internet connection with ethernet

my ethernet cable connection have problems with the internet on Ubuntu 14.10 (Also on 14.04). If i fill in Network Settings manually he shows that he is connected but i cant reach the router or ...
0
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1answer
34 views

How to get my Ethernet to work?

This seems like a stupid question, but really how do I fix my Ethernet connection on my Dell N5010 laptop. So far I have tried latest Ubuntu and Mint, but I had same problem with both - Ethernet ...
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0answers
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OpenVPN: The VPN connection to … because of invalid VPN secrets

I am 3 days into using Linux. I set up an OpenVPN connection following the instructions set out by: https://www.goldenfrog.com/support/vyprvpn/vpn-setup/linux/openvpn OpenVPN installation went ...
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1answer
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Share wireless Internet connection through ethernet

I want to share the wireless Internet connection on my desktop with my old laptop, through ethernet. I have ticked the option "Make available to others" on both connections, on my desktop, but my ...
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0answers
26 views

Ethernet stop working after while

I have an ethernet issue, i connect to network but after while it stops working, to bring it back on, i need bring eth0 down and up. I'm using clonned MAC address if it can by the problem, also I ...
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103 views

Bridge wireless and ethernet to KVM

I've just installed a new laptop with Ubuntu 14.10 Desktop and I'd like to get try and get KVM running so that I can host a couple of guest VM's. The problem is I can't figure out how to configure the ...
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2answers
110 views

I have an Intel i217 -v Ethernet Controller and nothing is working for internet connection

I built a server yesterday with a Gigabyte g1 sniper. It uses the Intel i217 -v for ethernet. I installed the drivers and everything and nothing is working to get ethernet working. I attached the ...
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0answers
69 views

USB Ethernet not working

I have a D-Link DUB-1312 USB3.0 Ethernet adaptor. D-Link's website has a driver, which seems to install fine after running make and make install. However, I cannot get it to appear in the output of ...