A family of networking technologies for LANs. Ethernet encompasses bother the physical connection between devices and part of the protocols which define how the connected devices can communicate.

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12
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8answers
2k views

Why Ethernet/MAC addresses are needed?

I don't understand why Ethernet MAC addresses are needed. Can't all computers just be connected to the unified network and use IP addresses to communicate? For example, there is a following mechanism ...
0
votes
1answer
41 views

how to force 10baseT after negotiation fails

I have a 25 meter Cat5e ethernet cable connected to a FritzBox and a computer. If I'm using a short cable I will get an 100 and 1000 Mbps connection respectively. But with the 25 meter cable I will ...
1
vote
1answer
10 views

setting up connman to manage a single preferred connection

I have a device that has both ethernet and wifi adapters. I'm trying to use connman to manage my connections. I'd like it to connect to ethernet when it's available and fallback to wifi if there's ...
1
vote
3answers
142 views

How to add an additional ethernet jack in a room already wired?

I have a router and switch in the basement and have set up ethernet jacks here and there on the first floor. During some remodeling, I had an electrician pull Cat6 cable up to my 2nd floor. Now I ...
2
votes
0answers
74 views

How do MAC addresses get burned into devices during manufacturing?

I'm interested in the steps necessary to manufacture an IP-capable device - say an Ethernet card. Manufacturing the hardware is pretty straight forward since all of the devices are exactly the same ...
0
votes
0answers
12 views

Network interference from a PC wired into router/switch?

Is it possible for a desktop PC directly wired into a switch to have a bad ethernet port which causes problems for other devices wired into the switch? I noticed whenever one of our desktop PCs is ...
0
votes
0answers
32 views

Ethernet always shows proxy server not found

I have installed Ubuntu 13.04. I can connect with wifi but In the case of ethernet I am able to fill up IP Address, subnet mask and gateway but the result is always PROXY SERVER NOT FOUND Here is ...
0
votes
0answers
30 views

Kali Linux over WiFi listed as new-host-X on Verizon (fomerly: WiFi only works with an Ethernet cable)

This was the text of my original question. I am keeping it here just in case I end up having this problem again: I installed Kali Linux as a dual boot using these instructions: ...
3
votes
1answer
29 views

Ever have bad voltage on an ethernet jack on a router/switch?

So I've got a bit of an odd problem I'm trying to solve. I have an ASUS RT-N66U router which has a desktop, xbox, and my brand new NAS directly wired into it. Whenever I hook the brand new NAS up ...
1
vote
1answer
55 views

Can't connect to Internet (Ethernet or WiFi) after 14.04 upgrade on ideaPad U530

I am currently unable to connect to the Internet on my newly upgraded Ubuntu 14.04. Network Manager is able to identify wireless networks, and it can detect when I'm plugged into an Ethernet ...
2
votes
0answers
31 views

Ethernet audio transmitter for long ranges?

I need to make up a solution for transferring audio file from server to speakers (preferred option via Ethernet). The problem is that in worst case the server may be ~300 km away. Is there any ...
0
votes
0answers
15 views

Connected devices

I have several devices connected to my Network. At the moment, 2 x Access points connected by ethernet (plugged into 2 network points), 1 x IPod and 1 x PC connected by WiFi. When I query the ...
6
votes
2answers
2k views

Difference between Ethernet and Ethernet cables?

Though I have read definitions of Ethernet on many websites and everywhere, what I read is that it is a technology. I do not get what do they exactly mean by technology. Is Ethernet the same as an ...
-1
votes
1answer
36 views

Why no ethernet after shut down?

I installed Linux Mint 17 and had Ethernet connected. I shut down the computer and the Ethernet connection vanished. BTW, I had the same experience with Ubuntu. If the OS can see the Ethernet ...
0
votes
0answers
20 views

Automatically switching between network interfaces

When commuting I usually have several network interfaces active on my MacBook (phone, hotspot, bus wifi). Periodically one of them becomes slow/unresponsive, and I have to manually switch to another ...
11
votes
2answers
388 views

Maximum Length of Ethernet over CAT5

As part of my course I’ve been reading the paper Ethernet: Distributed Packet Switching for Local Computer Networks. I understand that “classical” Ethernet (over coaxial cable) has a maximum length of ...
0
votes
0answers
24 views

Bridging WLAN and LAN for double the speed

I have a file server in my basement. I can transfer files at 30Mb/s over powerline ethernet, and 40Mb/s over WiFi. Can I combine them together to get 70Mb/s? I'm running Windows 7.
0
votes
0answers
23 views

win7 ethernet cord “disconnected” when setting network adapter speed to “auto”

When I change the speed&duplex settings of my ethernet adapter to auto, my win7 machiene does not realize I have an ethernet cord connected. Using 10mbit/s full duplex mode works, but my ...
0
votes
1answer
18 views

Will the network interface change between different operating systems?

I am interested to know if the network interface name (eth0, eth1, ..) associated with each physical ethernet card will change depending on what OS you use. If it is constant how does it assign the ...
0
votes
0answers
45 views

PC connected to two networks but no Internet access

I'm trying to set up two networks on my PC but am encountering an issue when connected to both. The PC connects to one network via Ethernet. This network has no Internet but is essential to operating ...
0
votes
1answer
25 views

Multiple default gateway issue on a laptop

Its been a long time but i'm back. I do have a Linksys WAG120N brand of wireless router at home which allows me share internet connection between three laptops either wired or in a wireless manner. ...
-1
votes
0answers
47 views

Couldn't use tplink range extender as wireless adapter

Hello i have Tplink 850RE range extender i made qss setup with my router.I have a desktop i want to connect range extender with my desktop but i couldn't see ethernet light in the range extender.I ...
0
votes
0answers
25 views

Why does two servers connect the same NIC when I use bonding in Linux with mode=6?

I create a bonding interface with 3 NICs in CentOS6.3. I use mode=6, which doesn't need the hardware support of the switch. Here is the bonding file: [root@~]cat /proc/net/bonding/bond0 Ethernet ...
0
votes
0answers
62 views

Connect two wireless routers with Lan cable over a distance of 100 meters

I have a Fiber optic coaxial connection in my home connected to a wireless router provided by my ISP. My office is not far away 4rm my house but I don't receive a wireless signal from the router so I ...
0
votes
2answers
23 views

Multiple network Adapters switching

I have a multi-network adapter workstation. Lets say its a ethernet and a wifi. The ethernet is somewhat restrictive, blocking alot of blogs and other resources, and is behind a proxy server that f*** ...
0
votes
1answer
212 views

Lenovo M30-70 Windows 7 Ethernet Controller

I've recently installed Windows 7 on a Lenovo M30-70 Notebook. It came in Windows 8 as default. I delete all partitions when I downgrade/upgrade. My main issue is that I am missing multiple ...
1
vote
1answer
29 views

Cannot connect to eth0 using static configuration

My router broke, so I am trying to set up a wired connection using eth0. I am using Crunchbang Waldorf, which is Debian based. I put the correct settings in /etc/network/interfaces and I also created ...
0
votes
3answers
212 views

Can I use a ethernet splitter to connect a router to two devices? [duplicate]

I have a portable mini wireless router with different functions (AP/Client/Router). Can I use a ethernet splitter to give internet access to two devices? The router only has a ethernet port and ...
5
votes
1answer
172 views

What can the second LAN port be used for on a NAS?

I've got a NAS with 2 ethernet ports. I have one connected to the router. I read that the second could be connected to double the speed of data to and from the NAS. I don't need to do that, as the ...
0
votes
0answers
11 views

How to use windows 2008 as router

i have a windows 2008 server with 3 network cards and 2 internet lines. i want to separate apps traffic and usual traffic as below. i tried RRAS as bridge but can i use windows 2008 as router using ...
0
votes
2answers
96 views

Can't connect network in “CentOS 7 on Dell Precision T7610 ”

I have installed CentOS 7 on my system Dell Precision T7610. While I am trying to connect to network. PFB the details [sigma@localhost ~]$ nmcli d DEVICE TYPE STATE ...
0
votes
0answers
42 views

Bridge a 3g connection with ethernet

Line-up: 1. An 3G usb dongle stuck in a laptop with ethernet port and wi-fi disabled. 2. An wi-fi router serving as dhcp server for another 3 wi-fi routers configured as access points. All those 3 ...
0
votes
0answers
38 views

Laptop and ethernet connectivity issue

This laptop has always had this issue, but I thought after I upgraded the operating system, it may work. My laptop is an Acer Aspire 7741Z-4433. It has a 320 GB hard drive with Windows 8.1 Pro ...
0
votes
1answer
35 views

Do I need different RJ45 plugs?

I bought this ICIDU UTP CAT5E Pullbox Solid Wire Straight 100m Network Cable and these 100pcs UTP Male RJ45 Connectors (CAT5/6) Ready plugs. I've tried time and time again repeated watching and ...
0
votes
0answers
26 views

Need advice on changing from wi-fi to multi ethernet in my house

My house has longterm wi-fi issues which can not be solved apparently, so I need to get ethernet connections to a maximum of 8 rooms in the house through the Sky router downstairs...The router has 2 ...
-1
votes
1answer
34 views

installing windows 7 from emergency disk, connecting with the internet

I have just reinstalled windows 7 on a laptop using an old emergency cd. Now this cd does not contain any drivers and as such it can no longer connect to the internet. This is on an dell inspiron 15 ...
3
votes
3answers
44 views

Speed of my internet connection

When I plug in my computer to the "World wide web" with an Ethernet cable, does its length affects my internet speed?
0
votes
0answers
243 views

Linux Mint 17 cannot connect to wired connection

I have just installed the latest Linux Mint after running into this problem with Ubuntu and thinking that was the culprit (Linux Mint 17, Cinnamon 64bit and Ubuntu 14.04.1 LTS were what I have been ...
3
votes
0answers
45 views

Issue in internet sharing(ethernet) to android device in mavericks

i have installed Horndis driver on my Mavericks, my phone is displayed on network preferences (with green connected icon). The issue is i cant get access to internet. i shared ethernet connection ...
0
votes
1answer
39 views

Cannot install ethernet driver

I've been having problems with my ethernet lately, it disconnects randomly and says I'm connected to an "Unidentified network": I then tried a number of things, including deleting the driver with ...
0
votes
0answers
59 views

Create WiFi Network Using LTE Hotspot + Airport Express

I have an LTE hotspot (Samsung, no ethernet) from T-Mobile. I'd like to use this as the "link" for my office LAN. What is the best way to extend this wireless (LTE) link to the LAN created by an ...
0
votes
2answers
47 views

Home ethernet connection problem

I had a technician wire my house with ethernet cables which all connect to a TPLink hub. My hope was to have a wired internet connection in a few of the rooms. The cables are around 10 meters each. ...
0
votes
0answers
46 views

Macbook Air OS X 10.9.4 Ethernet Adapter

I have a macbook air os x 10.9.4 and I'm a college student. I can get wireless connection easily on campus, however, in order to install my wireless printer I needed to put it through an access point ...
0
votes
0answers
43 views

Wireshark does not pick up outbound traffic

I have a bit of 'n problem at a client. We are running a WCF Client/Server application, and for some reason when one of the users try to connect to the server, he gets a timeout, but the second time ...
1
vote
0answers
30 views

2 pair Ethernet connection not working, but 4 pair does

I'm having problems with my internet connection. I have 2-pair lan cable, it used to work before in my PC, but 4 days back it stopped working, it works in others PC. Now only 4 pair lan connection ...
0
votes
0answers
230 views

CentOS 7 minimal install can't detect ethernet

I recently installed CentOS 7 on my desktop computer and decided on the minimal install. It couldn't find a network device in the installation process, but I went ahead and installed it anyway. ...
0
votes
0answers
29 views

Multiple Network Cards (16) on Windows Operating System. Random failures with UDP/SNMP

Please help me with this issue. Please be patient and read through. I have 4 (4 port ethernet cards) for a total of 16 ethernet cards on a single PC. First Ethernet card IP(10.10.0.10) is connected ...
0
votes
1answer
64 views

Verizon Fios Wireless router and ethernet outlets in various rooms of the house

I have Verizon FIOS and with that a Verizon wireless router (in a closet upstairs) in which the 4 ethernets ports are connected to a panel where there are 4 ethernet ports. Each port from that panel ...
0
votes
0answers
10 views

Frame Grabber, ethernet output

I would like to get professional help from network engineers about a product that I am going to use. The product will be connected to a computer by one end with VGA and, the other end will be ...
0
votes
0answers
100 views

How to configre network card on centos?

I have a fresh install of Centos on a machine with two NICs, one built-in and another one installed in PCI slot. However in the network settings I get one shown as wired connection picking up IP from ...