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Questions tagged [ethernet]

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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1answer
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What tool can check internet TX/RX status as top/htop?

For processor usage, we can use top or htop. For internet status, I would like to know the current TX/RX status, any command/tool to use?
2
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1answer
40 views

Finding the router ip address

I have compiled a little LFS system and I'm currently trying to get Internet connectivity up and running. I have managed to get it working manually, but this required me to know the router ip address. ...
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0answers
36 views

Why name of Ethernet device auto change to usb0?

It looks like this problem: https://superuser.com/questions/786216/what-is-the-purpose-of-usb0-ethernet-device-on-centos-6-5-machine OS: CentOS 7 The ethernet device is onboard LAN port. but I ...
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0answers
35 views

Linux client program to connect to a virtual serial port

My connection: Linux with ser2net < RS-232 --- Ethernet > Linux I need freeware program to connect to a virtual serial port (RS-232) that i created with ser2net. Serial to Ethernet Connector ...
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0answers
23 views

Choice of hardware for fiber subnet [closed]

I have an OpenStack cluster running where I have a dedicated subnet for storage traffic. In some situations, I could use some extra speed on this subnet, so I'm considering switching from ethernet to ...
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1answer
49 views

Find IP address of poe devices attached to my computer via ethernet

I'm currently trying to setup zoneminder on my computer that has Ubuntu as a host OS. Before I do all that, I want to know if the poe CCTV camera I purchased works, a Reolink RLC410-5MP There are ...
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0answers
44 views

how to get ethernet interface name, why do they vary from eth

On a dell pc, the only ethernet interface off the motherboard shows up as em1. On a newer supermicro server, the interface names are enp137s0f0 On some older supermicro servers, they are eth0..eth3 ...
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1answer
27 views

Run script when virtual interface is up

I have /sbin/ifup-local set to execute and it works but my virutal interface eth0.2 (vlan2) is the one that gets the IP address I need to run the script . How can i run a bash script when eth0.2 is ...
0
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1answer
33 views

Modules did not load correctly

I had tried to insert a “hello ,world“ kernel module in my Ubuntu: version 16.04. But it throws cannot stat './modules.order' : no such file or directory'. After that, I rebooted my system. Now ...
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1answer
32 views

10-eth0.network

I was trying to ping my machine from a photon OS IP but wasn't able to do so. So I followed a post and changed the /etc/systemd/network/10-eth0.network to the following: [Match] Name=eth0 [Network] ...
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0answers
30 views

Sharing Internet Through a Network Interface

I am trying to share internet to another device using USB NCM functionality. I have successfully configured usb0 interface. However, I am not sure how to share internet. So far I have done: On the ...
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0answers
32 views

Setting up multiple network interfaces using /etc/network/interfaces

I'm trying to setup my 4 network interfaces to have a specific dns-nameservers and dns-search so I can be connected to my domain using any of them but it's not working properly as when I run systemctl ...
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0answers
32 views

Elementary crashes router when plug in Ethernet cable; Windows, no problem

I've already tried this more than twice. I can connect my laptop via Ethernet cable to the router on Windows, but when I do so on Elementary, the router instantly crashes and reboots. I can use WiFi ...
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0answers
87 views

Ubuntu ethernet and wifi keep dropping have to keep restart network interface [closed]

A company was installing a new server in our lab and all computers internet (both ethernet and wifi) on ubuntu is down the day after(windows works fine, my laptop dualboot into windows and both ...
4
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1answer
104 views

How is systemd supposed to work regarding network interfaces?

It is well-known that systemd changes the network interface names from e.g. eth0 to enp0s25, and this is called "Predictable Network Interface Names". On my system, eth0 is called "enp0s31f6". And I'...
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0answers
101 views

UDP send buffer error in netstat

I we are running voice application which stream UDP (RTP) packets for voice, I am investigation some strange issue where my ifconfig ens4 | grep error counter going up specifically overrun If you see ...
0
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2answers
213 views

Network Unreachable For Ethernet Interface Arch Linux

Everything was working fine up until today, I've been fiddling for hours trying to configure ethernet on my arch install with no luck. I run a dual boot system with windows and networking seems to be ...
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0answers
63 views

Unable to connect to internet after enabling wake on lan on Debian 9

I've enabled Wake-On-Lan on my debian machine with this tutorial. I didn't have the option to try it out or reboot, and went to sleep. The next day, a power surge happened, and rebooted my computer, ...
0
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1answer
29 views

Can i configure the browser to use one network interface and other apps to use the second?

I have a Linux box (Debian 9) with 2 NICs (Ethernet & Wifi) and they both connect to different networks. Is it possible to configure the browser to use the Wifi NIC and all the rest of apps to use ...
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0answers
50 views

VOIP worked with Mint 19.1 & kernel 4.4, fails w/ kernel 4.8

With Linux Mint 19.1, kernel 4.15, I connect to the Internet using WiFi, and want to share the Ethernet connection with a Grandstream IP Phone. I have done: click | network connection | wired ...
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0answers
32 views

Ethernet network disconnected but the cable is actually plugged in

I have recently installed GalliumOS alpha on my Acer Chromebook 14. WiFi works flawlessly, but I can't get the Ethernet connection to work as network manager says "disconnected" under Ethernet Network....
2
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1answer
47 views

Gigabit ethernet requires replug to work for kernel 4.20

I have a Microchip sama5d36 board that has a gigabit ethernet (KSZ9031RNX) and 10/100 ethernet (DP83848J). When I use kernel 4.20 the gigabit ethernet wont connect until I unplug and replug the ...
0
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1answer
418 views

What is the meaning of rx_missed_errors?

When we test the eth card with ethtool -S we get rx_missed_errors: 4649. What is the meaning of rx_missed_errors? Is it a major problem? rx_over_errors: 0 rx_crc_errors: 0 rx_frame_errors: 0 ...
2
votes
2answers
320 views

A start job is running for eth0

I am using a new installation of Arch Linux and whenever I boot my system I have to wait for 90 seconds as there is a start job running for my network interfaces. I installed Arch yesterday and ...
1
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1answer
195 views

Udev - Network cable hotplug event not catched [duplicate]

I'm running a buildroot custom linux (kernel 4.9.87) on a custom board based on an Atmel Sama5d2. I'm trying to configure the network on the eth0 interface using dhcp only at hotplug. Originally, ...
0
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1answer
291 views

meaning of “brd” in output of IP commands

In the following example: $ ip a | grep scope.global inet 147.202.85.48/24 brd 147.202.85.255 scope global dynamic enp0s3 What does the 'brd' mean?
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1answer
192 views

Altering eth1 MAC address [duplicate]

I need to alter the MAC address for eth1 ethernet device on my embedded system permanently so it retains this MAC address on every boot. The OS I'm using: VERSION_ID="v2015.12" NAME="Angstrom" ID="...
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0answers
57 views

Impossible to set the default gateway address on boot-up

I am using a BeagleBone embedded computer running Debian. I have two network interfaces : 1) A connection to a cellular modem over USB which uses ppp and connects to the outside world. It receives a ...
1
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0answers
127 views

Cannot get all my ethernet ports detected/connected

I'm trying to make connections through my 3 ethernet ports but for some reason my ubuntu can only detect 2 although there is a wired connection in the third port as well. Below is the result of ...
1
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1answer
666 views

Kali Linux - Wired connection failing unless machine gets restarted

I am using the newest version of Kali Linux (2018.4) but I have the following unusual issue. If I boot my machine up with the ethernet cable plugged in, the eth0 interface works just fine. However, if ...
2
votes
1answer
269 views

What happens if remove auto eth0 from /etc/network/interfaces

I am using a BeagleBone and have two network interfaces. One Ethernet interface which will connect locally to another device, and a ppp interface over USB which connects to a cellular modem. I want ...
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0answers
562 views

ubuntu linux machine fails to connect to wired network but recognizes ethernet cable

I got a new Ubuntu/Linux machine (Ubuntu 18.04.1 LTS) that I am trying to connect to the internet for the first time, wired via ethernet cable. Under Settings >> Network >> Wired, there is an On/Off ...
2
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2answers
40 views

Wake on LAN directly via Ethernet

I want to use wake on lan with my LG TV but it is only supported via cable connection. Is it possible to connect small computer (Orange Pi) directly to the TV via cable and send Wake packets directly?
0
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1answer
43 views

How do I connect to a QNAP [closed]

BACKGROUND DETAILS: I've inhereted a QNAP TS-459U-RP. I currently have it connected to my home router via an ethernet/rj45 cable. My computer is connected to the same router. How do I access the ...
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0answers
34 views

Run pppd with custom MAC address?

I want to run multiple PPPoE accounts on my Linux machine but unfortunately, each PPPoE account requires a different MAC address and my machine only has 1 Ethernet interface (buy another adapter is ...
2
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1answer
511 views

How to connect to ethernet while installing arch linux?

I am trying to install arch-linux on my thinkpad following the installation wiki. I plugged in the ethernet cable, and the ip link command will show: enp8s0: <BROADCAST,MULTICAST,UP,LOWER_UP> ...
0
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1answer
175 views

Wired ethernet disconnect after first webpage

I have an issue with my wired ethernet : After i plug it, the internet connection seem to be ok (ping at google.com --> OK), **but when i go to a website, after loading the first page, the connection ...
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0answers
64 views

Network teaming configuration

How to configure the teaming network? On our redhat machines we configured as the following the teaming network On each machine we have two links - ens1f5 and ens1f6 And we add the team0 file to ...
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0answers
38 views

Network teaming VS bonding configuration

as I am understanding we can set on Linux configuration BONDING or network teaming both approach support LAN fail over for example if on the server we have the following up link eth1 eth2 in ...
3
votes
1answer
622 views

Disable Wifi on Connection to Ethernet with NetworkManager

How can I disable my Wifi radio when I've connected to a network via Ethernet (wired), but enable the Wifi connection if I don't have a wired connection? Essentially, I want XOR switch for my wired/...
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votes
1answer
101 views

Network capture using ethtool points to problem?

Issuing this: ethtool -S <network device> | egrep "err|fail" I get the following errors: tx_lost_interrupt: 225 rx_alloc_fail: 36297 What is, tx_lost_interrupt and rx_alloc_fail ? Do ...
1
vote
1answer
79 views

Busybox USB Ethernet adapter

I have an embedded device running busybox on an ARM 7 processor. How would I go about using a USB -> Ethernet adapter for network connectivity? Currently I only have a serial console. The system ...
1
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1answer
282 views

Can't permanently assign additional IP addresses to USB ethernet adapter via /etc/network/interfaces. Why?

I want to assign multiple IP4 addresses to a USB->Ethernet adapter in an Ubuntu 18.04 LTS system. I have removed netplan, since I find the yaml-based configuration even more obscure than the ...
3
votes
1answer
428 views

docker0 network interface is screwing up my network

I've installed docker on Ubuntu 16. Now I can no more connect to my wired network : ubuntu is using docker0 ethernet interface to connect to the network (the wifi interface still works) To resolve ...
0
votes
1answer
37 views

How can I track down the source of an Ethernet ARP table issue between Linux laptops?

On our home LAN, after rebooting the router, I cannot ssh from laptop A to laptop B except via the router. However, after doing a ping from laptop B to laptop A, I can connect normally from A to B. I ...
2
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0answers
40 views

Network Switching

Is it possible to switch between Wireless and Wired Connections when both are connected without switching off either one of the two connections in Ubuntu 18.04? The thing is that when I want to ...
0
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1answer
648 views

What does rx_csum_offload_errors mean?

I asked same question on serverfault but since I'm not sure where is proper to ask that I'm asking same question here. I see too many rx_csum_offload_errors on ethtool output and it constantly ...
13
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7answers
4k views

Naming convention standard for Ethernet and Wi-Fi interfaces on Linux machines

What is the naming convention standard for Ethernet and Wi-Fi interfaces on a Linux machine? We are developing a tool that should show only the Ethernet and Wi-Fi interfaces of the Linux machine and ...
2
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0answers
95 views

How does the Linux 3.10.105 kernel handle Ethernet broadcast storms?

In my embedded Linux device I want to find the source of Ethernet broadcast storm and flash the led once I detected the ethernet broadcast storm. Does Linux kernel handle broadcast storms? Is there ...
0
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1answer
31 views

discover eth0 after boot

On my embedded system I have an Ethernet PHY which is normally in reset state. There's a GPIO driven by the processor for the reset signal. If I bypass the driver on board and force the PHY in Non-...