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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Wi-fi network device has Ethernet link layer
I'm capturing packets using Wireshark on my Macbook. Pinging some public IP (e.g., 8.8.8.8) shows the ICMP packets going out my en0 interface. In Wireshark's capture options, that interface is ...
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Gnome shows ethernet connected when cable is unplugged
I'm trying to connect to the internet on my Debian 12 laptop using my phone connection through an USB-C cable.
When the cable is connected and the connection sharing is activated on the phone, the ...
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Kernel panic on boot, only when ethernet adapter connected
Hardware:
Late 2013 MacBook Pro Retina
16gb RAM, no swap space enabled
aftermarket 2TB SSD
Brand new Thunderbolt to Ethernet adapter
Software:
Fresh install of Ubuntu Server 22.04.3, with GNU/...
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How to cancel a packet scheduled for time-based transmission after it's enqueued?
I have a time-sensitive networking application I am writing that involves receiving individual Ethernet frames, and then sending the data onward in another Ethernet frame after a precise 1 second ...
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Errors when trying to bring ethernet interface up on embedded Linux
I am trying to compile the Linux kernel (3.0.8, buildroot-gcc-12.3.0, ARMv7) to run on my IP camera.
eth0 is not able to get up.
At first, kernel boot just crashed at Starting network step:
Unable to ...
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Raspberry pi running arch linux connected to two different wan ports(wifi and ethernet) I want to disable intenet access and keep local access
I have a unique setup I think. I have a raspberry pi running pikvm. I have two internet connections at home (Xfinity and ATT):
xfinity connected via --> ethernet port (MAIN)
ATT connected vis --&...
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Ubuntu wired ethernet can be detected but can't connect to any other divice with RX data transfer always zero
Platform
CPU: RK3288 ARMv7 embedded processor
Memory: 2GB
NIC: RTL8211E chip on board
OS: Ubuntu 14.04.1 LTS
root@9tripod:~# uname -a
Linux 9tripod 3.10.0 #26 SMP PREEMPT Sat Mar 4 17:06:44 CST 2017 ...
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Playing Music through Sonos Speaker connected to ETH Raspberry Pi
I have a Raspberry Pi Wifi-to-Ethernet bridge, and have a Sonos Symfonisk speaker plugged into the Ethernet output. In it's current configuration I can't play music through the speaker, is there a ...
- 103
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Router Cannot See MAC Address of Devices Behind RPi Bridge
I followed Option 1 (Same Subnet) of this tutorial to turn my Raspberry Pi into a WiFi-to-Ethernet Bridge. It works great, but the router cannot see the device connected behind the bridge as being ...
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Stablish uni-directional SFP network link
I am trying to establish a uni-directional Ethernet link where a singular fiber is used to transmit data to the receiver. The Rx of the transmit side and the Tx of the receive side are not physically ...
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Migrate from Ubuntu 16.04.7 to 22.04.2 / 2 IP's / 2 NIC's same Subenet / Same Gateway
I need to migrate an application from an Ubuntu Server 16.04.7 to 22.04.2. The hosted service requires two IP addresses, one for each of the two NICs. The default section with the nexthop info from ...
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Additional IP being assigned to the wired interface breaks connection to the internet on my wired-to-wireless 'bridge' using parprouted
Description of the problem
I've been trying to set up a wired (usb) to wireless "bridge" using the parprouted approach on a Khadas VIM3L board running a Debian based distribution called ...
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debian bookworm - plugging in ethernet shuts off display
I recently migrated my ASUS thinpc (Ryzen 3 4300U) from bullseye to bookworm. I use a KVM switch (KCEVE 4 Ports KVM Switch) to share my external monitor, mouse and keyboard between this PC and my work ...
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Slow booting on Devuan with bridged DSA interfaces
I'm using DSA (Distributed Switch Architecture) to turn the four ports on my switch into lan0..3 interfaces.
I then bridge lan0..2 into br0.
It all works.
The OS is Devuan Chimaera (Debian without ...
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Print entire 802.11 WiFi Ethernet frame header with tcpdump (or anything else)
I'm currently learning about WiFi Ethernet frames and want to sniff raw ethernet traffic from my laptop's WiFi adapter. Running
sudo tcpdump -vvv -n -i wifi0 -e
prints something like the following:
...
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How to find the parent network device for a PPPoE device
For a POINTOPOINT PPPoE ppp0 device in Linux, how to get the underlying ethernet device in a reliable way?
I've looked in the output of ip -d link and in the /sys/class/net/ppp0 directory, but neither ...
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Can't have two network interface enabled at the same time?
Rocky Linux 8 X86-64 on a PC with two Ethernet interfaces, each connected to isolated switch hub, then connect to router.
LAN1: 192.168.1.2/24 <--> Hub1 <--> 192.168.1.1 (Router port #1)
...
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Ethernet stopped working suddenly on Orange Pi version of ubuntu jammy
I use an orange pi zero 2 as a home server/media center
with the ubuntu jammy version released by orange pi.
(Orangepizero2_3.0.6_ubuntu_jammy_server_linux5.16.17)
A few weeks ago, my ethernet ...
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Connect wifi adapter to motherboard ethernet connection, same machine, linux
I just want to connect my wifi adapter to my ethernet adapter, plug the ethernet adapter (onboard) into a router, and share Internet with the wifi adapter through the router. Possible? Easy? I'm using ...
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How to enable/disable NIC Rx
My computer has two Ethernet ports for receiving data, and each port has an open socket. The sender also has two Ethernet ports, and they are synchronizing and transmitting the same data.
Based on my ...
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How to get rid of the ifcfg-Auto interface?
I'm currently handling a RHEL 6.4 system's network interface problem, which is, the system seemed to configure network automatically but always fail. And My goal is simple, just want to configure ...
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Cannot get DHCP lease through wireless-to-wired bridge
I am trying to bridge wlan0 and eth0 on a embedded board. That board is going to be
connected to my home AP via wifi and I expect to connect my laptop to the wired
leg of the bridge and have access to ...
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117
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0
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1
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645
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netplan does not assign static ip to the eth0
I am configuring a PC network with netplan and the following configuration:
only one ethernet device with MAC address 48:b0:2d:d3:d1:c4, and an USB-to-ethernet adapter.
I need the ethernet device (...
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1
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I see only DHCP requests but not DHCP responses from "parallel" computer
I have two Raspberry Pies and one DHCP server connected to a switch. Raspi #2 is configured to do netboot.
I am sitting on Raspi #1 and doing
tcpdump 'ether host b8:27:eb:5d:4a:f6' -p -i eth0 -vv
I ...
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295
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How to link usb ethernet adapter to the specific ethenet adapter in Linux Ubuntu
I connected 4 USB-to-Ethernet adapters to my machine which runs Ubuntu 20.04.5.
When I check ifconfig, I see 5 network adapters, which is correct. eth0 is always native Ethernet adapter which ...
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What are ARP hardware type 37, opcode 21 and protocol type 0x90bd?
I am currently testing netfilter / nftables / nft. As a starting point, I have made a ruleset that drops nearly everything in and out, and have written the rules so that every dropped packet is logged....
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Reading PHY MII registers beyond 0x1F
I am having some issues with a DP83826 PHY and therefore I want to read some configuration registers. I have used mdio-tool and mii-diag for it, but I just realized that I can only read the first 32 ...
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How to use 2 network interfaces simultaneously?
I want to use 2 network interfaces (enp7s0 and enp8s0) simultaneously on Ubuntu 22.04. Both has its own separate internet connection. My default is enp8s0 which I plugged the LAN cable in first. I ...
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virtual machine on kvm hosted on ubuntu
I want to create a virtual machine one ubuntu (kvm hypervisor) and I want to dedicate three out of four physical network interfaces to the virtual machine, is it possible ? Can someone explain it to ...
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Wifi only works after plugging in and then unplugging ethernet cable (Debian 11)
I recently moved to a new apartment with new internet. I have a machine with a Windows disk (Windows 10) and a Linux disk. When I boot Linux, the wifi does not work until I plug in an ethernet cable ...
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After OpenSuse update a new connection with IP 127.0.0.1 appeared in my PC
After an update this happened. I can't disconnect this lo connection and whenever I disconnect it it automatically connects itself. I checked its IP and found out 127.0.0.1.
I don't know if this is ...
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How to assign mac address on the physical port of switch device?
I have a Linux embedded device with two port Ethernet switch function.
There is only one ethernet interface which is eth0 and the mac address is, for example: 90:59:af:6e:02:43.
What I want to do is ...
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ARP request received by one end of ip-link peer and not the other
I have created a network namespace reflector for the interface v-ref.
It is peered to the interface v-test in the default namespace:
sudo ip netns add reflector
sudo ip link add v-test type veth peer ...
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Can `tcpdump ether host` filter with a mask to get, for example, hosts with a specific OUI?
I'm trying to filter traffic by src ether host to see all devices with a specific MAC prefix. If this were like IP, it might filter with src ether host aa:bb:cc:00:00:00/24 to see OUI's matching aa:...
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Ubuntu 22 server ethernet is disabled after router lost internet connection
Recently put a fresh installation of Ubuntu Server 22.10, router went down yesterday and then came back, but now the ethernet port seems to be disabled. Ethernet port does not flash its lights when ...
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How can I diagnose and reduce the number of dropped packets coming in from the WAN ethernet interface?
I have a couple Ubuntu servers each running as a firewall/router. I've noticed one has a much higher RX-drop count than the other. The drops seems to jump in spurts. This last netstat shows about 2.6% ...
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Lower throughput in a Bridge created as a Ethernet Switch in a Ubuntu Server
The setup is given below. I have a server with NIC(eth0 and eth1). I have created a bridge br0. The idea is I want to send the packets received from eth0 via br0 to eth1.
(Laptop)___________ Ubuntu ...
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bxe0 and bxe1 to eth0 and eth1 respectively
I have a freebsd which has the network interfaces as follows.
bxe0, bxe1, igd0 and igd1
I want to move them to names like eth0, eth1 and so on. I know that I can do it in the /etc/rc.conf
...
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My Debian 12 keeps raising "eth0" interface when it doesn't exist
I'm new to Debian and Linux in general and I have a curious problem I have no idea how to fix. I'm on Debian Testing (currently bookworm).
During boot, my Debian always says that it fails to raise ...
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Eth going down randomly state "unmanaged" on Centos
Centos 7.9.2009 (Core) NetworkManager is driving me mad- ethernet going down randomly. First it was going down in couple of minutes. After I kept trying tweaks from forums, I have achieved almost 2 ...
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How to permanently disable EEE (Energy Efficient Ethernet) on Ethernet card?
I am looking for a kernel parameter that I could use in the GRUB config to disable EEE (Energy Efficient Ethernet, wikipedia) permanently on my LAN (wired Ethernet) card of my newish laptop:
Basic ...
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47
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Getting broadcom 57711 card working on openmediavault/debian install
I'm trying to activate the dual 10gb ports on my broadcom 57711 card in a dell R710 server. THe issue is that the ports are not UP. If I run ifconfig -a I see the ports listed, missing the UP flag of ...
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How to connect 2 VMware instance running on same Linux host machine via emulated ethernet cable (accessible via mac address)?
I have a host machine running Linux (ubuntu-18.04). There I have 2 VMware instances configured and the network is configured via NAT. I can ping from VM1 to VM2 (and vice-versa) via their local IPs ...
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Laptop only connects to ethernet during sleep
I'm installing Void Linux from scratch with the base muscl ISO image. Internet was working fine with ethernet, prior to installing and setting up the service for acpi. After I installed acpi, though, ...
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Ethernet connection does not work on new Fedora install, kernel module nowhere to be found
I recently installed Fedora on a desktop PC and I couldn't get any ethernet connection. Browsing my issue on the internet, I realized that a lot of people encountered the same problem. When looking it ...
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How to configure a network interface on Ubuntu Server 22.04?
I would like to configure the ethernet network interface of a server but I am completely lost. I saw on the internet that you could do it with the nmcli tool but also with netplan, I saw some people ...
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Which app create the veth in my os?
Show network interface which named as vethf2842c3:
ifconfig | grep veth -A 7
vethf2842c3: flags=-28605<UP,BROADCAST,RUNNING,MULTICAST,DYNAMIC> mtu 1500
inet 169.254.83.218 netmask 255....
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usb ethernet adapter not working
I recently bought a usb ethernet adapter for my laptop.
When I connect it to Windows 10, it treats the device as a flash drive.
On this "flash drive" is an executable .exe file. Running it ...
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