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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.

3
votes
1answer
22 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/...
2
votes
0answers
46 views

Slow ethernet speed - Realtek RTL 8111/8168/8411

With a Windows PC connected to the same router I get normal/fast ethernet/internet speed but not with this PC which before my changes used driver r8169: Linux Mint 18.1 Serena 64 bit Kernel Linux ...
-1
votes
1answer
32 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
24 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
vote
1answer
56 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
32 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
0answers
19 views

How to connect my computer with a Fortigate 50a over serial port?

I have a old Fortigate 50A firewall and a ethernet to serial cable. The firewall has a serial port (console) and my computer doesn't, how can I configure the firewall using the ethernet to serial ...
0
votes
1answer
31 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
votes
0answers
34 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
votes
1answer
78 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
votes
7answers
2k 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
votes
0answers
34 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
votes
0answers
17 views

No ethernet connection on ElementaryOS

I am trying to figure out why my wired connection suddenly stopped working after my computer was just off for a day. I'm dual booted with Windows 10 and ElementaryOS, and the last thing I did before ...
0
votes
1answer
25 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-...
0
votes
1answer
43 views

linux & identify the interface name on remote machine

lets say I want to ping to some machine as from my machine - moon ping -c 1 master01 now I want to understand what is the interface name in master01 machine that get the packet from ping so how we ...
0
votes
0answers
56 views

Linux Interface RX error & rx_brb_discard counter higher

I am running CentOS 7.5 Linux and server is totally idle no in production but today i got alert stating interface eth error and when i check interface counter was very high but it stopped after that, ...
0
votes
2answers
171 views

How set up link aggregation (bonding) in linux mint 19

I am using network-manager. I tried bonding my two wired connections eth0 and usb0, using GUI similar to nm-connection-editor (eth0 is connected to my router and usb0 is connected to cellphone). I can ...
2
votes
1answer
34 views

Share USB audio device over Ethernet [closed]

I connect my Linux laptop to an Onkyo P-3000R (a USB DAC) using a 10 meter USB cable. I would like to replace that long USB cable with a WiFi connection, if possible. I could connect my Onkyo USB ...
0
votes
0answers
28 views

Installing Linux 64 bit: PCH_GBE module not supported

I installed the following Linux system on my (rather old) IPC (Siemens IPC 227D): esys@mykros:~$ uname -r 4.4.0-31-generic #50~14.04.1-Ubuntu SMP Wed Jul 13 01:07:32 UTC 2016 x86_64 x86_64 x86_64 GNU/...
0
votes
0answers
61 views

route table with eth0 priority and ppp0 second

i have a board with linux-3.20 and it have 4G modules. when i startup i can run "pppd call quectel-ppp &" get a ppp0 interface.i also have eth0/eth1 interface,eth0 can connect to the Internet,now ...
1
vote
0answers
64 views

USB-Ethernet adapter stops working periodically, as if going to sleep

My laptop uses a USB-Ethernet adapter for a wired connection. Periodically, while actively working, the connection is lost. NetworkManager tries to connect and to obtain an IP address via DHCP but ...
0
votes
0answers
29 views

Avoid bringing down ethernet iface when cable is unplugged

I have a device connected to my computer via Ethernet cable (I am actually using a USB to Ethernet adapter), and sometimes I have tu turn this device on and off . The interfaces file for the Ethernet ...
0
votes
0answers
48 views

Not able to configure eth0 on boot up

linux 4.9.11 android O I have a nxp imx6 sabresd reference board. I do not get my eth0 up after doing this ifconfig eth0 192.168.7.5 netmask 255.255.255.0 up the log I get after this is, adev_6dq:/...
0
votes
0answers
34 views

Network interface not up

Ethernet interface shows down. Tried to make it up with the below command, but still it shows down. root@DLC-200:~# cat /sys/class/net/eth2/operstate down root@DLC-200:~# ifconfig eth2 up root@DLC-...
0
votes
1answer
45 views

How to regenerate a complete config file from a kernel Image from buildroot

I have an Image that I generated using buildroot that boots a kernel from an SD card and it works perfectly. I changed a few settings in the buildroot menus (I can't remember which ones) and now ...
1
vote
1answer
176 views

Disable Power from Ethernet

I'm trying to "turn off" the power that goes to a device over Ethernet. I'm using this card: https://www.startech.com/Networking-IO/Adapter-Cards/4-port-gigabit-poe-pcie-network-card~ST4000PEXPSE; it ...
0
votes
1answer
479 views

dhcpd and bridge - No subnet declaration error

I prepared dhcpd configuration in Debian 8 and it successfully worked but then I added bridge and dhcpd failed. bridge: root@remote:/home/s# brctl show bridge name bridge id STP enabled ...
1
vote
0answers
22 views

Ethernet malfunction when booting with extra device on /dev

I have a customized Linux distro (created via buildroot) running on an embedded platform. The system consists in a processing module (Based on Samsung Exynos 4412 microprocessor) with a base board for ...
0
votes
0answers
175 views

Networking service makes eth0 to get down when restarting it in Debian 9 Strech

When you connect to a server via SSH, and server has a fixed IP address through /etc/network/interfaces file, if you try to change the IP address in that file, normally you would restart the ...
2
votes
0answers
305 views

The mysterious case of the slow ethernet connection on a Debian router

I have adapted an Intel NUC to act as my home router. It handles a VLAN on the LAN for the wifi clients and some ethernet clients, the local LAN, an OpenVPN server, the WAN connection. The strange ...
2
votes
1answer
847 views

Ethernet Connected but no internet access on Linux Mint

I new in connecting Ethernet with my Linux Mint, WiFi works fine. But I encountered quite a few errors. After spending 2 days searching I failed to connect. $ uname -a Linux 'username' 4.13.0-39-...
0
votes
2answers
853 views

Transparent Bridge from Existing WiFi to Ethernet?

I've seen lots of examples that turn the bridging machine into another router with its own DHCP server, etc. But I want to use a wired device as if it were connected directly to the original router. ...
0
votes
0answers
81 views

How can I create ethernet bridge in Linux system in Buildroot?

I have 2 (and will have additional 2) ethernet interfaces in my device, and I want them to be bridged. I use Buildroot for building my system. I want to create bridge at startup. Currently I use this /...
0
votes
0answers
37 views

My ethernet device has strange name on Ubuntu [duplicate]

My ethernet device has strange name on Ubuntu, is this normal? $ uname -a Linux calculon 4.4.0-93-generic #116-Ubuntu SMP Fri Aug 11 21:17:51 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux $ ifconfig ...
0
votes
1answer
255 views

network statistics of each queue in a multiqueue system

I have an NIC with multiqueue support so that based on priority of packets different queues will be used. I want to analyze the packet flow through each of these hardware queue. The queues are ...
0
votes
1answer
266 views

Beaglebone cannot connect to internet using ethernet cable

I've been trying to get my Beaglebone Black to connect to internet using an ethernet cable plugged direct into my Netgear router. I have tried many things but nothing has worked so far. Here are some ...
0
votes
0answers
38 views

Conflict between wlan and ethernet board

I'm using a linux based board to receive data from sensors and write them in a txt file.By configuring the board as webserver i'll reading the txt file by typing ip address. The protocol used is ...
0
votes
2answers
850 views

How to identify the switch port an interface is connected to?

Is there a way to send some (non-broadcast) packets out on an Ethernet interface that doesn't have an IP address assigned to it? Thus allowing me to see which light blinks on the network switch? The ...
1
vote
0answers
95 views

Mapping between FDIR to RSS queues for Intel 82599ES

I am working with Intel 82599ES 10-Gigabit SFI/SFP+ NIC with linux 4.4.0-116-generic native ixgbe driver. I am wondering about flow indirection table coming with NIC which has 16 fdir queues. Those ...
0
votes
2answers
30 views

How know in which router I'm when I'm connect by ethernet

When I'm connected by WLAN I can determinate in which network I'm by looking the SSID, for example: $ iwgetid -r ONOA72E $ nmcli -t -f active,ssid dev wifi | egrep '^yes' | cut -d: -f2 ONOA72E And I ...
0
votes
1answer
33 views

How to get the information about the status of data receiving and sending in ethernet?

Is there any tools to get the information about status of data receiving and sending in Ethernet (Real-time information is better, GUI tools is better)? The information includes: sending and ...
0
votes
0answers
44 views

Cubietruck not receiving DHCP address from server

I have a Cubietruck board with 16.04 Ubuntu (armbian base) installed. In the past I've used the board with a static IP address, defined in /etc/network/interfaces. Today I wanted to expand my ...
0
votes
0answers
35 views

Arch netctl profile configuration

I'm new to Arch and I'm trying to set up my Raspberry Pi with Arch-ARM to connect to my uni's network. I think I've figured out what I need to do – I've currently got a netctl profile up in nano, with ...
0
votes
0answers
47 views

mtu 9000 issues only on tcp and not icmp possible?

I have a connection between two datacenters and rsync between them stalls often. I think it is related to the mtu 9000 (I actualy set it to 8900 because of some possible vlan use) I have the ...
-2
votes
1answer
50 views

What is the simplest way to connect hosts on the same subnet? [closed]

I would like to achieve that what ever hosts (that are on the same subnet) I connect on ethx on tunx, could see (ping, have ip connection) the other ones located on the the other ethx or tunx (on the ...
1
vote
1answer
66 views

How can I share my laptop WiFi with my Raspberry Pi via ethernet? [closed]

I have a Raspberry Pi 3 and I am trying to get WiFi working on it. I cannot seem to get the wireless to work in the command line so I would like to use my laptops WiFi instead. Both devices have an ...
0
votes
0answers
366 views

ubuntu 16.04 unable to connect to the internet through ethernet

My laptop( Lenovo G-50-80 ) was connecting fine to the internet through ethernet but i had to turn it off by long pressing the power button after it had frozen for over 10 minutes because the vmware ...
1
vote
1answer
202 views

Automatically get IP address (DHCP) when plugging the ethernet cable in

I have a freshly installed system ; it's Raspbian (based on Debian), on a Raspberry PI, installed with raspbian-ua-netinst. I believe this is a general linux question, though feel free to redirect me ...
1
vote
1answer
35 views

From where does dql (dynamic queue limit) variables in kernel get their value?

Context : I was working with a custom driver in an arm SoC, while trying ifconfig enp1s0 up. I was getting a report like below WARNING: CPU: 0 PID: 0 at /home/abc/Yocto_Setup/fsl-release-bsp/build-...
1
vote
0answers
2k views

ifup shows IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready, then the link becomes 'ready' by itself. What is happening?

I am stuck with some strange behavior comming from my linux system. I have two ethernet interfaces (eth0 and eth1). When trying to set them up for the first time (for example with ifup eth1, or ...