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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9 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 ...
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1answer
37 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 ...
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0answers
13 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 ...
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2answers
125 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. ...
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0answers
11 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 ...
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1answer
23 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 ...
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1answer
34 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 ...
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1answer
34 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 ...
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1answer
49 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 ...
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1answer
33 views

Ethernet Connected But No Internet

I am trying this on Intel Galileo Gen 2 which runs Yocto Linux and I am unable to connect to Internet using Ethernet. I have WiFi card but that doesn't connect as well. I have tried following commands ...
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1answer
95 views

Upgraded Debian Stable (Jessie) desktop not connecting to wired Internet

I updated my Debian Jessie installation a few days ago to the current minor version (8.3), which included a new Linux kernel (uname -a gives 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt20-1+deb8u3 ...
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2answers
42 views

How much was uploaded in the last five minutes?

I do not need some kind of realtime visual status of my ethernet - I want to run my script when last five minutes I uploaded less than X. So I need to get only one number from some command. What can ...
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1answer
32 views

Running a VPN through Debian into a router

I will soon have a file server running Debian, and this server has 2 Ethernet ports. I recently came up with the idea that one Ethernet port can come as an 'input' from my actual connection, and the ...
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0answers
13 views

Limit access/transmit rights on NIC to a single user application

I currently have a RT patched linux machine and I need to have full and undelayed access to my Wired interface card. I am running a realtime non-preemtable user application which sends a couple of ...
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1answer
42 views

Eth0 recognized by ifconfig -a, interfaces correct, cannot connect?

So, I had a WiFi connection "working" with WPA Supplicant. That took quite a bit of doing, and wasn't optimal. The networks would drop out every few minutes. I wrote a script which would reset the ...
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2answers
311 views

“Pipe” Wi-Fi signal through Ethernet cable

Currently the Ethernet ports in the building I work in are down, but the Wi-Fi works. I have a Wi-Fi-enabled laptop (Ubuntu 14.04 LTS (Trusty Tahr)) and a non-Wi-Fi enabled workstaion (Debian 8 ...
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1answer
40 views

ssh RPi from PC - How to share internet connection?

I have Raspberry Pi connected with PC on eth0 port. I am using eth0 to ssh RPi. I have web application on RPi that requires Internet access. Now, I set static ip to RPi (192.168.1.50) and to PC ...
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2answers
40 views

Generate raw Ethernet frames with memory preloaded payloads at < 1 ms intervals

I am looking to generate raw Ethernet frames with payload that is preloaded into memory. The Ethernet frames (10-60 full frames) should be generated at 1 ms intervals with no exception. What would ...
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1answer
43 views

not getting full network speed (or even close) of 100 mbps

When I use rsync on large files it shows a download speed of 2.7 MB/s, or around 22Mbps. When I run ethtool on the NIC, here is the output Settings for eth0: Supported ports: [ TP MII ] ...
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1answer
32 views

Creating Encrypted Tunnel Between 2 Lans

I have 2 LANs and one of them is connected to the internet and I need to connect them together. Normally, a single cat6 cable is enough for connection however, this cable is going through a public ...
1
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1answer
61 views

how can one manually assign a permanent / static IP address with “ip addr add”?

After an IP address is assigned to this network interface, with any of the the following commands: ip addr add 10.0.0.0 dev eth1 valid_lft forever preferred_lft forever ip addr replace 10.0.0.0 dev ...
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0answers
164 views

Turn down the Energy Efficient Ethernet (eee) aka Green Ethernet

This is what is the Energy Efficient Ethernet. The problem is, that in lot of environments it conflicts with other features and stuff so i really need to disable it. I read that something can be ...
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0answers
32 views

Active-backup bond of 2x mode 4 LACP bonds

I have 2 switches and a server with 4 NICs. The switches are connected together with a LACP LAG. I'd like to have a situation where I'm able to survive a switch failure, also still have the ability ...
3
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1answer
47 views

Network Manager does not handle switching between networks by default

I have to transition between different networks quite often using a laptop and various docking stations. If I remove my laptop from a certain network and place it again on the same network then no ...
0
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2answers
112 views

How to give all computers connected to a network switch internet?

I want to make a cluster computer out of Raspberry Pis (with a network switch/hub, and mpiexec), and have run into the issue about how they will get internet access. Since it would be a hassle for all ...
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0answers
177 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 ...
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0answers
36 views

Multiple Ethernet interfaces

I am using Debian 7.8 on a PC Engines APU board. The APU also has an apache server on board which is the main application for external users to access the APU and its associated applications (which ...
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0answers
38 views

Set Primary NIC - Fault Tolerance and Redundancy - Raspbian Wheezy

English is not my native language so please be patient. Hi to all, happy new year. I have a Raspberry Pi 2 (model B) running Wheezy (4.1.7-v7+), after a lot of help from Diederik and the community, ...
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1answer
100 views

DHCP release and renew over SSH?

I am setting up a DHCP reservation for my Raspberry Pi B+ on the wired connection. It's in another room. After setting up the reservation, I told it to reboot, and it did not get the new ...
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0answers
76 views

Ethernet and wireless controller not recognized any more

I have a pretty grave problem. I wanted to use some programs that dont run with Wine. So i set up a Windows-To-Go on an external hdd. Upon booting it said something like Devices are being ...
1
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1answer
114 views

Linux interface RX Packet Dropped with LACP and not doing loadbalacing

OS: CentOS 6.6 / 64bit / Kernel 2.6.32-504.30.3.el6.x86_64 I have bond0 interface with following configuration. Ethernet Channel Bonding Driver: v3.6.0 (September 26, 2009) Bonding Mode: IEEE ...
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3answers
164 views

Can I contect a Ubuntu Linux laptop to a Windows 10 laptop via ethernet cable

I read a lot of articles and watch videos on How people can connect two computers with a ethernet cable but a lot of the instructions was more / windows to windows/mac to mac /windows to mac/ but yet ...
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0answers
21 views

lshw HWPath priority — how to determine

I have a project here at work where I'm attempting to definitively map ethernet MAC addresses to physical ports (IE card 1 port 0 is eth0 (mac xx:xx:xx:xx:xx:xx) and a non-technical operator can look ...
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4answers
76 views

Is there a simpler way to copy a file from a computer to a Raspberry Pi over Ethernet than having to manually set an IP for both computers?

Forgive me if I do not provide all the necessary details, but I will try my best. I downloaded this pdf to help me get started with using my Raspberry Pi. I wanted to copy it over to my Pi, which is ...
3
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0answers
149 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 ...
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1answer
41 views

How to fix that dhclient uses massive amounts of bandwidth when bridging eth0 to wlan0?

I have been using my Raspberry Pi as a WiFi adapter for my PS3, because the internal WiFi adapter on the PS3 isn't good, but the USB adapter on the Raspberry Pi is much better. I have been using these ...
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1answer
100 views

unable to connect ethernet on manjaro linux

I am installed Manjaro Linux 15.09 which is based on Arch Linux, but Ethernet is not working, although WIFI is. How can I solve this problem? Information of my system: output of lspci Output of ...
0
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1answer
107 views

Force internet traffic over LAN, but connect to router over WiFi

This is going to seem like an odd request, but it's necessary. I have a wireless router that is not to be used for internet access. The current router that I have is a DLink DIR-626L and I use it to ...
0
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1answer
98 views

How to setup automatic IP assignment after ethernet cable is plugged in

I have a Centos server and I have a problem with automatic detection of cable connection. Whenever server is up before router has started i need to restart server to make it detect IP. For Example: - ...
0
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1answer
163 views

Share wlan connection to ethernet using command line

I have a wlan1 connection that I want to share to other computers on my LAN (via Ethernet - eth0). As this is somehow a temporary solution, I want this to be done by a script, so that I do not touch ...
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2answers
74 views

Ethernet with DHCP not working

I'm trying to get internet on my beaglebone black with ubuntu, but it won't work. My /etc/network/interfaces file has: auto eth0 iface eth0 inet dhcp in it. Should I use static IP or something? ...
2
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1answer
53 views

How to swap out the driver of a network device on a running Debian Linux box?

I've got an embedded/headless Debian Linux box which boots from a read-only filesystem image. The configuration is set up so that I can (seemingly) write to the filesystem, but any changes to the ...
2
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0answers
273 views

Why can't Fedora start my (hard wired) network?

FYI: I've asked this on Superuser but not luck so I'm trying here. I'm not sure which it is more relevant to. I have a hard-wired Ethernet card/cable to my hub. I start Fedora 23 but there's no ...
4
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0answers
57 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 ...
2
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1answer
61 views

How do you add a virtual network IP address from the kernel command-line?

I would like to add a virtual IP address, something you normal do with: ifconfig eth0:0 192.168.1.1 (or via /etc/network/interfaces). But, I'd like to do it from the kernel command-line, which has ...
2
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1answer
63 views

I have installed CentOS 7 on Virtual Box, but network settings are missing

I have installed CentOS on Virtual Box. I had CentOS-7-x86_64-DVD-1503-01 downloaded it from a torrent. I ran the following command; nmcli d Which tells that only loopback is there. I enabled ...
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2answers
99 views

Direct connection w/ ethernet cable

This is for "research" not pragmatic purposes -- I want to know how this is supposed to work, since my guess below does not. In other words, I do not want an answer that involves ...
3
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1answer
111 views

How can I create an alias for a network device?

I'm trying to get a particular piece of software to run that uses a licence manager that hasn't noticed that newer Linux distributions don't name their network devices eth0 anymore. It is trying to ...
0
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1answer
236 views

Install USB2Lan Driver on Debian 8 (Jessy)

I've installed Debian 8 netinst. get make, gcc, linux-source-3.16 ... Here is the lsusb list: root@Filter:~/smsc7500# lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 005 ...
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1answer
647 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" ...