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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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Analyzing an ethernet cable for low negotiating speed

I'd like to find out why my cat 6a refuses to negotiate 1000 speed. I have a 15 meter long U/FTP CCS cat 6a Ethernet cable installation. I have analysed the cable with a multimeter and each strand (white, blue, green etc) measures around 3.6 ohm…
Jaco
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Networked Remotely-Managed Media Player

We're looking to replace our current in-store video distribution model, which involves the production of a DVD ISO and several people burning discs and shipping them out. Cost-benefit analysis shows that utilizing the existing WAN connections at…
Matt
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Why is my client still talking to my server when I change client IP to different subnet?

On occasion, I'm using a Verizon Mifi adapter to share an internet connection over my office network (which doesn't have internet). To do this, I have to share the internet connection on the adaptor, which changes my local ip address to a different…
silencedogood
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Dual NIC silently rejecting all incoming traffic from one interface

In my server, I have two ethernet cards: enp0s17, local IP 192.168.0.7, router's public address x.x.x.x, netmask 255.255.255.255 enp0s18, local IP 172.16.0.7, router's public address y.y.y.y, netmask 255.255.255.0 On both networks, any incoming…
TheOneWithTheBraid
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Need feature name: ethernet switch recognizes manual cable disconnect and shuts down the port

Once in a hospital's radiology department, we had this nifty security feature -- I just cannot remember the proper name to succeed at various search engines: If a host's ethernet cable was disconnected, the uplink switch recognized this and as…
Twonky
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How to bond two interfaces having different speeds in Linux?

I have successfully set up two simultaneous VPN tunnels over different Internet connections to the same server. Then I've bonded them using systemd-networkd and balance-tlb mode. It works as designed, balancing traffic equally among the interfaces.…
Zouppen
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Reasons for ethernet interface to stop responding for ~30 seconds, then acknowledging all received packages?

First question! Hi! Running on Ubuntu 16.04. Hardware info: lspci | awk '/[Nn]et/ {print $1}' | xargs -i% lspci -ks % 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (2) I219-V Subsystem: ASUSTeK Computer Inc. Ethernet…
Rafael Rodríguez
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What connection does RDP default to when host machine is on wifi and ethernet?

When the host machine I'm connecting to is currently on both the docked (ethernet) and wireless version of our network, which one does RDP default to when I initiate Remote Assistance?
WakeDemons3
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How to know if 2 ethernet ports of the same modem are separated?

I have a Digi TransPort WR family of 3G/4G cellular routers with 2 ethernet ports, digi told me that the ethernet ports are separated but i want to know if they are not in the same network it's a matter of security just to be sure that you can't…
B.Abd
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How to find unix eth port link speed

I have small issue with my openwrt router. I want to know link-speed in format 10M,100M, 1000M, etc. or 10BaseT .. but I can't find it in /proc or with "ip" command also "dmesg" doesn't provide this data. Have you any ideas where can I find it?…
sjwrong
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Lan card not recognizing connected cable

I have a system with Ubuntu Server 14.04 installed on it. The onboard ethernet port is faulty. As I want to setup DHCP server on it, I have installed two external LAN cards. I also have a leased line. When I plugin the cable directly into one of the…
Saurabh Sharma
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Can we use a ADSL2+ modem in bridged mode to convert to ethernet WAN?

I am no networking master, so I have no clue if this makes sense. I have a DSL line from my internet provider with all the service details. Now, I have a TP-Link modem (+router) WD8961N. This is currently running in PPPoE mode. Works perfectly. My…
weirdpanda
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Should I use a straight-through or cross-over for router to extender cabling?

I'm trying to conncect a router to a repeater (extender) should I use a straight-through or cross-over for the ethernet?
Harout Tatarian
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TCP/UDP Small Package Size optimization

I currently have the problem, that when a LOT of RTP streams (>800) go to one server the max. speed is onlynabout 70-80 Mbit (on a Gigabit LAN - all Hardware components are Gigabit components) 130 byte payload - with large payload everything is…
pinas
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Is that MAC-48 address valid: "01:23:4:56:78:9A"

Wikipedia states about MAC-48 string format: The standard (IEEE 802) format for printing MAC-48 addresses in human-friendly form is six groups of two hexadecimal digits, separated by hyphens (-) or colons (:) I'd like someone who actually has…
kamituel
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