refers to the wired style to connect a bunch computers or a way to connect to such network. This tag is for both software and hardware part of this issue.

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0
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2answers
18 views

Ubuntu wifi connects and works for 5 minutes then stops working while remaining connected, need help

so, a few months ago i decided i wanted to make the switch to linux on my laptop, but to play it safe, i chose to dual boot. right now i have my 1TB hard drive split even between ubuntu 14.04 and ...
1
vote
1answer
27 views

How to permanently remove eth0.x in CentOS

I'm trying to remove eth0.x and keep eth0. While ifconfig lists both eth0.1 and eth0.500, I didn't find their configuration files /etc/sysconfig/network-scripts/ifcfg-eth0.x. I tried ifconfig eth0.1 ...
2
votes
0answers
54 views

Can't figure out why Ethernet packets are ignored

I'm trying to setup an ethernet connection between a PC (Windows XP) and a notebook (Debian 9) using a crossover cable. No DHCP, just manually set IPs and a netmask. The notebook has Qualcomm Atheros ...
2
votes
1answer
183 views

Intel Ethernet Connection I219-V not working under Linux on an ASUSPRO B laptop, e1000e driver reports: “The NVM Checksum Is Not Valid”

I have a problem with an ASUSPRO B8430UA laptop: when I boot it with Ubuntu 16.04 (or NixOS 16.03) the Ethernet port does not work. The driver used is e1000e, it reports: $ dmesg | grep e1000e [ ...
0
votes
2answers
1k views

nmcli device eth1 “unavailable”

I have a motherboard with two Ethernet ports, and I would like to get a connection on both ports. Eth0 already has a connection and can be used without problems. Eth1 however shows up as "unavailable" ...
2
votes
0answers
41 views

eth0 NO-CARRIER on Arch/Wired Connection Not Working

The device is a DELL Vostro 1510 and I have tried both the r8169 and r8168 kernel modules. ethtool eth0 shows Auto-negotiation: on MDI-X: Unknown and Link Detected: No. Ip link shows <NO-CARRIER,...
1
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0answers
49 views

Can not reach internet through ethernet interface

Working with Debian 7.10, and wicd network manager, when ethernet cable is disconnected and reconnected again, network no longer works until device is rebooted (ethernet interface [eth0] is not able ...
1
vote
1answer
70 views

How to connect to device via SSH over direct ethernet connection

I have a device that I need to connect to over SSH. The device is connected to my workstation via a direct ethernet connection. I'm attempting to assign the connected device an IP address somehow that ...
2
votes
1answer
2k views

Linux Mint: LAN “Cable not connected”, despite it is

I've just installed Linux Mint 13, 64 bit (from the CD of "c't kompakt Linux", if this matters), and came across a very unexpected problem, for which I've not found a solution with Google or searching ...
1
vote
3answers
4k views

Virtual Interface Not Showing up in ifconfig?

I am trying to create a virtual interface for the purpose of NameBased Virtual Hosting on my CentOS linux box; please find below is the devices' information:- DEVICE=eth0 BOOTPROTO=dhcp HWADDR=00:0c:...
1
vote
1answer
30 views

How to test linux NAPI feature?

I am trying to test the NAPI functionalities on embedded linux environment. I used 'pktgen' to generate the large number of packets and tried to verify the interrupt count of my network interface at /...
0
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0answers
47 views

Is IP over USB 3.1 type-C between two Linux hosts at 10Gbps possible?

I've been unable to determine on my own if I can do this. I'm wondering if it is possible to connect two Linux systems with USB 3.1 with type-C connectors to setup a point to point network (IP or ...
2
votes
1answer
3k views

How to test an ethernet card?

I have a USB->Ethernet card that may or may not be somehow broken. The problem is I don't really know how to test it. I have a normal Ethernet port as well, so I can hook a (already tested) cable from ...
2
votes
2answers
922 views

reset Ethernet bonding without rebooting

I have the following Ethernet bonding configuration: old configuration: bond0 eth0 eth1 bond1 eth2 eth3 new configuration : bond0 eth0 eth2 bond1 eth1 eth3 I have made the ...
0
votes
1answer
2k views

Can't connect to ethernet Linux Mint 17.1 Xfce

I have just installed Linux Mint on my netbook (HP Compac Mini 700). I have managed to make it connect to WiFi, downloading driver, but it won't connect via cable. Strangely enough, the other day, ...
3
votes
0answers
20 views

Bluetooth Tethering, no IPv4 adresse at interface bnep0

I want to tether my mobile internet from my smartphone (OnePlus One, Android) to my Laptop (Debian 8). I want achieve this without using external tools. At the arch wiki page (https://wiki.archlinux....
0
votes
1answer
2k views

Mint 15 on Lenovo G700: wired internet not working (Atheros QCA8172)

Mint 15 doesn't see internet after installing it in dualboot with windows 8 (in Windows internet works well). My network card is Qualcomm Atheros QCA8172 Fast Ethernet (rev 10). What I did: Install ...
0
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0answers
27 views

Mint eth0 not showing

I've recently installed Linux Mint on a fairly old laptop (Dell Inspiron 1501, sorry if that makes you cringe), and I managed to get it to work ... for the most part. However, I ran into the issue ...
0
votes
1answer
384 views

Ubuntu ethernet connection works for few seconds then drops (with Win 7 dual boot)

I've looked through other posts with similar issues but so far to no avail. I'm running dual boot with Windows 7 and Ubuntu 15.10 and although the Ethernet connection works on Windows, when I boot ...
0
votes
0answers
23 views

Understanding NIC self test's with ethtool

The below is taken from a previous question: For starters you can use the tool ethtool to run your NIC's self tests. excerpt from man page ethtool -t|--test DEVNAME Execute adapter self test ...
2
votes
1answer
91 views

make my Debian laptop switch automatically to a backup connection

I have a laptop with Debian OS installed under it. It is initially connected to the internet using an Ethernet cable (via a modem) and I want to automatically switch to a backup wifi connection (which ...
3
votes
1answer
61 views

ICMP - Destination unreachable (Port unreachable)

I have two Ethernet-wired connected devices. I gave to both of them address from same sub-network. As result I can see second device in arp-table of the first. $ arp -a ? (128.247.77.90) at 10:60:4b:...
2
votes
0answers
17 views

I need to install ethernet driver during arch install [closed]

I've been trying to set up a dual boot with Windows 10 and Arch Linux. I started off by dual booting Windows 10 and Ubuntu just to get a feel for everything. When I did that I had to install ethernet ...
0
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0answers
57 views

How can I use two Ethernet cards in AWS Ubuntu LTS 14.0

We are using two Ethernet cards in an AWS Ec2 instance. And trying to ping with both Ethernet card by using ping -I eth0 google.com and ping -I eth0 google.com, we got the response from eth0, and eth1 ...
1
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2answers
78 views

unable to SSH to eth1 after bringing down eth0

I have a remote machine with 2 interfaces: eth0 and eth1. I am able to ssh using eth0 ip address as well as eth1 ip addr. However, things go strange once I bring down eth0 using the command ifdown ...
1
vote
3answers
73 views

Discover Static IP of connected ethernet cable

Ok, so my question is a bit out there, and I've read a lot of similar questions but they never actually are doing what I am trying to accomplish. So the best way to describe it is with this scenario: ...
1
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0answers
50 views

How to disable ethx device under /sys/class/net [closed]

I am looking for a way to disable/delete eth2 entry from /sys/class/net [root@test ~]# ls -l /sys/class/net/ total 0 lrwxrwxrwx 1 root root 0 May 26 08:04 eth0 -> ../../devices/vif-0/net/eth0 ...
0
votes
2answers
26 views

(Ethernet cables): Can a straight wire work (slightly) where a crossover-wire is necessary (without MDX)?

If I connect a straight Ethernet cable where a crossover cable should be used. Can I get the behaviour that it works occassionally, once in a while? Too me it seems it would either work or not, not ...
2
votes
1answer
76 views

Network interface crashes after disconnecting eth wire or restarting service

At startup or reboot, network interface works fine. Host is reachable and also can communicate with other devices on the local net or internet. IP address is configured as static, and dns-nameservers ...
0
votes
1answer
5k views

Linux Mint 17, Wifi Slow and Drops Connection, No Ethernet Connection

On a fresh install and updated Linux Mint 17 XFCE, the system cannot maintain an internet connection through wifi, and is unable to connect at all through ethernet. Wifi will work somewhat slowly for ...
-2
votes
1answer
42 views

Can I install Kali linux with out Ethernet card

I want to install Kali linux on my Laptop, but I don't have a Ethernet card. It is possible to install Kali with out Ethernet or with wifi interface ??
0
votes
1answer
67 views

Can't find OpenWRT driver for Insignia NS-PU98635 USB-Ethernet Adapter on RPi 1B

I have a Raspberry Pi (1B). It's running OpenWRT (Barrier Breaker - 14.07, r42625). There's an Insignia USB3.0-Gigabit Ethernet adapter (NS-PU98635) plugged in. I can't find the driver for that NS-...
0
votes
0answers
24 views

How can I set up my ethernet on a fresh install of Fedora Server 23?

I am using Fedora Server 23, and cannot get my ethernet connection to work. It works fine on Ubunutu, OS X, and Windows 7 on the same machine. [root@localhost etc]# ifconfig ens5: flags=4163<UP,...
4
votes
0answers
239 views

Ethernet bonding round-robin not work when 1st interface down

I'm trying to understand the bonding mode=0 (load balancing round-robin). Using eth0 & eth1, I created bond0 interface as the configuration below : root@test-env1:~# cat /etc/sysconfig/network-...
4
votes
2answers
10k views

No wired ethernet connection

I'm using elementary OS (based on Ubuntu 12.04) and yesterday I woke up to no wired ethernet connection. As far as I can remember I changed absolutely nothing, it was working at night and not anymore ...
0
votes
1answer
28 views

Missing NIC in CentOS 5 - AsteriskNow 1.7.1

So I have two nics, but I can't get the second to load, here is the output from lspci -vvv 04:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection Subsystem: Super ...
0
votes
1answer
70 views

Wifi and Ethernet unclaimed on ubuntu-based linux

I'm trying to finish the installation of elementaryOS (an Ubuntu-based distribution) on a Thinkpad E460. However, I can't neither have Ethernet nor Wifi. In fact, lshw -c network -sanitize shows both ...
0
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0answers
59 views

Getting Link Speed of USB Ethernet

How to get Link speed of USB Ethernet? $ sudo ethtool enp0s20u2c2 Settings for enp0s20u2c2: Current message level: 0x00000007 (7) drv probe link Link detected: yes ...
4
votes
1answer
85 views

How best to enable end-user configuration of wifi or Ethernet on embedded device?

I'm building a device that includes an embedded Linux computer and I need to allow the device user to (easily) configure the device to connect to their wired or wireless network. I know there are ...
3
votes
1answer
5k views

multiple default gateways for alias interfaces (SOLVED)

Alias interfaces defined in /etc/network/interfaces cannot have multiple default gateways. Unfortunately I would like to use the same interface to access 2 different nets, and I need to define 2 ...
0
votes
0answers
38 views

add 10G fiber NIC however not able to see it go to up state

I have added a 10G Intel PCIe card to my Linux machine. I have connected both sides of the cable and the remote side comes up when I plug the cable into my linux machine and goes down when I remove ...
1
vote
2answers
196 views

Cannot connect to the internet (even pinging my own router) on any distro

I always run Windows 10 (Ethernet and WiFi work fine) but I dual boot and changed my distro from Arch (~6 months ago) to Fedora (~3 months ago). Fedora used to connect sometimes and sometimes not. ...
0
votes
0answers
58 views

No response to DHCP broadcast

Following on from this question, I'm still trying to get ethernet and DHCP working on a buildroot-based embedded Linux board. Here's what I'm trying: The ethernet interface is brought up using ...
1
vote
1answer
115 views

ethtool flow control steer igmp packets

I am attempting to explicitly steer igmp packets to the kernel via ethtool. ethtool -U ens1f0 flow-type ip4 l4proto 2 action 0 rmgr: Cannot insert RX class rule: Protocol not supported Doing ...
0
votes
0answers
12 views

Could two servers connected by one cable use the link in the same time?

I'd like to know if two servers connected through a cable, can use the only connection to communicate in the same time. For example suppose both have are ssh servers, could I log in from A into B and ...
0
votes
1answer
64 views

Flapping Ethernet connection of Fedora 23

Since a few days I am experiencing a flapping Ethernet connection on my Fedora 23 laptop: the network connection goes down for several seconds every minute. The machine is up-to-date with the latest ...
4
votes
1answer
1k views

difference tun/tap, is the interfaces that handle protocols or the OS?

I have difficulties to understand difference between tap and tun interface. I know it is an often asked question and I apologize for that. I asked the same questions on stackoverflow and someone told ...
1
vote
1answer
68 views

Packets not moving through linux ethernet bridge

I am trying to set up a debian 8.3 machine with eth0 and eth1 bridged, but I can't get packets to traverse the bridge. Currently, eth0 is connected to a LAN with many other hosts, including a DHCP ...
0
votes
1answer
79 views

Setting static ip address for multiple ethernet controller

I have a simple question for which I couldn't find a answer for hours on the internet. I didn't think it's so much special what I want to do, but it seems to be. I have Debian virtual machine within ...
5
votes
1answer
11k views

What is the difference between virbr# and vnet#?

I am running KVM on RHEL6, and I have created several virtual machines in it. Issuing ifconfig command to the host system command line shows a list of virbr0, virbr1... and vnet0, vnet2... Are they ...