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Questions tagged [ethernet]

Ethernet is the most common set of standards for wired connections in local area networks.

Ethernet is the most common set of standards for wired connections in local area networks.

Originally designed in the 1970s, Ethernet had a data rate of 10 megabits per second. Later, Ethernet was extended to support rates of 100 megabits/second, 1 gigabit/second, 10 gigabits/second and 100 gigabits/second.

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How to keep IP address when ethernet cable unplugged linux?

My board has wlan0, ppp0 and eth0 interfaces and I always want to keep my IP address on eth1. How can I do this?
selcuk gok
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How to ping backup interface?

this is my network configuration: bond interface 192.168.101.50/24 has two salaves: eth1 (192.168.101.1) that is connected to 192.168.101.2 and eth2 (192.168.101.10) that is connected to 192.168.101.11. I created a bond interface bond0 in…
raffaeledp
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Unable to ping other devices in the network through ethernet port on a custom board

I am on a embedded development platform and trying to bring up the ethernet and do a ping test. As of now, I have the ethernet up after the linux boot, but I am unable to ping other systems. My thinking suggests that the phy is not configured…
user2532296
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Is there a registry value to force a connection to close?

I have an ethernet connection that I want to close if it's not sending or receiving any data. Is there a registry value I can set or any configurations I can change? For windows 10, thanks Edit: Maybe something like TcpTimedWaitDelay set to 1 would…
user1416658
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Will devices with different auto negotiation settings on switch ports with matching auto negotiation settings communication issues between them?

I ran across this idea today and had conflicting opinions on this from various co-workers. I am trying to understand if the communicating devices' auto negotiation settings need to match each other when communicating over a switch which has the…
Paj
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Simple way to secure a wired link with 802.1x in "peer to peer" mode without server

I have an Ethernet link between two Linux hosts with a static IP config using systemd-networkd on the both sides without router, DHCP server, etc. Is there a simple way to add a basic 802.1x security with only a shared passphrase (without…
Emeric Verschuur
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Access mysql from another computer connected with crossover cable

I have two computers, and i am trying to access mysql via network on port 3322 (mysql listens on this port) Computer A Server: Windows 10 home Added firewall exception to port 3322 (mysql installed and listens on this port) Static IP address:…
Smith
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Can ping OPC UA server, but cannot connect to it

I have an OPC UA server running on a PLC from BR Automation and would like to connect to it from UaExpert running on a Windows 10 machine. It has worked previously, but after physical re-placement of the components and installing a new ethernet…
Dave
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Accessing Marvell switch via remote management interface

I have 88E6341 Marvell Ethernet switch. I cannot access its MDIO and according to the datasheet the switch has remote management via Ethernet which I'm interested to use to diagnose connectivity issues. What SW tools can I use on Windows or Linux to…
jackhab
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Event driven way to detect Ethernet port status changes (disconnected / 10mb / 100mb / etc) in linux?

I was wondering if linux has some sort of interface to detect ethernet port state changes via /sys or some other way that is event driven. What I mean by state changes is DISCONNECTED / 10mbit / 100mbit / etc. We could just pool the status of the…
anonymous-one
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Limiting hosts on a network

I am in need of some networking advice and hopefully some of you will be able to help me. My network is shown in this block diagram: The ethernet switches are from Microchip, model KSZ9897, which is a managed layer 2 switch. The switch has multiple…
Lunde
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Onboard ethernet versus Intel NIC

I would need some recommendation about the benefits of using a dedicated Intel Ethernet card versus simply using the integrated Ethernet of the motherboard. The typical use case would be the following: Payload of around 100 KB per…
Henry
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Network layer communication with multiple hosts with the same IP but different MAC addresses

Due to an unfortunate (mis-)configuration issue I am having ~100 hosts of which the IPv6/IPv4 (even the IPv6 link-local) addresses are all the same and which for the moment I cannot change. However, all hosts have unique and known MAC addresses and…
Simon Fromme
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Gateway with multiple VLAN IPs on one NIC

I would like to separate several hosts from the local network and put them behind a firewall. I would like to use VLANs to "physically" separate them instead of using just different subnets. My idea is to use a switch that supports VLANs, and build…
user236012
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Raspberry Pi as internet forwarder

I thought about building a device that will behave as a forwarder with VPN. I know that I can e.g. take the internet cable, connect it to rpi, turn on vpn and create wifi hotspot. But I wanted it to be more private device and I can't find any…
Norbox
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