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Questions tagged [ethernet-port]

The Raspberry Pi B/B+/2B/3B has a standard Ethernet port for connecting it to the internet and to a network. Other RPi versions, such as all "A" versions, the RPi Zero and the Compute Module do not have the hardware required though in some cases it may be possible to provide such connectivity with an add-on board.

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Where does the Raspberry Pi Ethernet MAC get generated?

I read somewhere (in a few places, actually, can't seem to find the references to it now that I want them) that Raspbian on the Raspberry Pi generates the MAC address for the Ethernet interface based ...
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Connecting to RPi from Linux with the ethernet cable without touching RPi

I have a Raspberry Pi 3 that runs on Raspbian and has SSH enabled. However, I don't have any monitor to connect it to (to set up WiFi connection), so my only chance to communicate with it is a basic ...
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Official “securing your pi” guide recommends blocking port 30 from 192.168.2.1 - why?

The official "securing your pi" guide from the Raspberry Pi foundation recommends installing the "uncomplicated firewall" (ufw) and adding a rule to deny access to port 30 from 192.168.2.1: sudo ufw ...
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Under-voltage problems when using the new PoE hat

I'm experiencing some issues with the new PoE hat when using my NETGEAR gs108pe PoE switch. Basically when I use my raspberry pi 3B+ with only my HDMI monitor and a USB serial converter attached (...
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Faulty Ethernet interface?

After running apt-upgrade on a Raspberry Pi B+ 512MB to bring it to the current version of Raspbian GNU/Linux 9.4 (stretch) the Ethernet connection stopped working. The interface's behaviour after a ...
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Is there a multiple USB to Ethernet hub?

I want to create a network of raspi 0's connected to Ethernet. Can I connect them all to one Ethernet wire via a USB hub? Thanks
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1answer
104 views

Manually change MAC address on USB to ethernet module Pi Zero

Very unusual request here, I know you aren't normally meant to change your MAC address since it's burned into the interface you are using, but I am networking 2 raspberry Pi zeros together, each with ...
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1answer
53 views

What's the difference using RS485 or tcp/ip connection?

Are there any differences to connect a Raspberry Pi to a BU unit via TCP/IP or RS-485? I'm trying to connect the raspberry pi to this, to unlock a lock: Intelligence storage Locker control module/ ...
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261 views

Extra gigabit ethernet to raspberry PI B+

I'm looking for extra gigabit ethernet. I need 4 EXTRA ethernet ports on my raspberry. Can anyone help me? Is there a breakout board with the chip lan7515?
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SSH connection dropped via Ethernet cable

I have two Pis that send data from remote sites via WiFi and needed their WiFi credentials changed. I connect via eth0 and access with ssh -X. Each time I successfully access ssh, the connection ...
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Raspberry Pi 3B+ Ethenet socket Orange LED flashing

I have this weird issue with my Raspberry Pi 3B+ where during normal operation, e.g. while running sudo apt update && sudo apt upgrade the command errors out saying it couldn't connect to the ...
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483 views

Connecting RPi to 2 different networks

I'm pretty new to Raspberry and I searched the net for a while now trying to find a good and simple answer to this question. Ok, so I have a network that is connected to the internet. I want to start ...
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RaspberryPi3 Model B - Replacing usb with additional Ethernet port

I wanted to ask whether it is possible to somehow remove one of the double usb hubs and solder there additional RJ45 port? I know it is possible to use USB to ethernet dongle but that is sadly not an ...
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1answer
1k views

Connection to MySQL database does not work

I have two Raspbery PI 3 which I have installed (almost) identical. The configuration of /etc/mysql/mariadb.conf.d/50-server.cnf is identical for both Raspberrys. Problem: I can only connect to the ...
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1answer
986 views

Using dhcpcd.conf for VLAN interfacing (raspbian stretch)

I want to add a VLAN interface to the eth0 port of my raspberry pi. I have assigned a static IP to my physical interface eth0 and my /etc/dhcpcd.conf file looks like this: interface eth0 static ...
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143 views

Get modem msisdn from incoming smstools

I have device and modem connected with sim card. And I have raspberry and smstools installed in the device. It all works very good with smsd configuration. When sms is sent to the the number of the ...
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1answer
2k views

ethernet interface interrupts connection

When I use the ethernet interface with Raspbian it interrupts the connection for many seconds so streams will break and a ssh terminal stuck for minutes. For me the ethernet interface is not usable ...
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Gather information from ethernet connected devices

Is there a way to plug an Ethernet capable device ( projector, TV, XBOX, etc... ) into a Raspberry Pi 3's Ethernet port, power it on, and extract information about the device connected to the RPI 3's ...
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Pi Won't Connect to Ethernet or WiFi

EDIT: This is a brand-new Pi 3 board running raspbian I just got my Pi, and for whatever reason I can't access the Internet. Ethernet will try and configure forever, and when I try to connect to ...
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1answer
206 views

Connect to the raspberry over SSH via mobile connection

I finally got it working that I can use a Huawei E173 modem on my raspberry. When activating it with sudo ifup 3gModem everything works fine, and it connects itself to my Server as I can see it ...
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2answers
2k views

Connecting to Pi 3 via USB to Ethernet Adapter

I have a USB to Ethernet adapter I normally use to connect my 2 PCs and share files. I tried to use it to connect my PC and Pi 3 but it seems its not receiving any data from Pi 3. The connection is ...
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1answer
810 views

Automatically add hotplug network interface to bridge

I have my Pi Zero W set up as a wireless bridge, bridging from wired eth0 to wireless wlan0; of course, wlan0 operates in AP mode. So far so good. Now I'm noticing that when I forgot to plug in the ...
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1answer
668 views

Usb to ethernet converter for Rspberry pi 3

I am having a raspberry pi3 model b v1.2. The ethernet port available in the board is connected to modem. I just need one more ethernet port so i have decided to buy a usb to ethernet converter. What ...
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2answers
220 views

Can I connect to my Raspberry Pi 3 with neither an internet connection nor Ethernet cable?

I am trying to learn how to connect to my Raspberry pi 3 to my laptop without internet or a router. I know some have suggested that I use an Ethernet cable, but my computer (Windows 10) does not have ...
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1answer
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Do the Ethernet lights show error codes?

My moel B is flashing all three network lights (FDX, LNK and 100) toghether about once per second. Is this an error message? There is a cable plugged in but there appears to be a break somewhere ...
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eth0 'bricked' - no link light despite fresh install of Raspbian

I am currently working on a project to set up a Pi 3 to serve DHCP leases to devices that connect to an isolated local network to configure them. In the process I have somehow managed to render eth0 ...
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2answers
450 views

Unable to resolve IP address for RPi connected through ethernet

So I want to connect ssh to my RPi 3 through an ethernet port on my Macbook pro. My RPi is on jessie. I am not able to find the local IP address of the RPi through my computer. I can find the ...
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3answers
744 views

Hotel WiFi to Ethernet Bridge

I am going to be staying in a hotel in the future, and I need to be able to use Ethernet devices there. The hotel provides free WiFi, however it has no way of providing Ethernet. I have the idea of ...
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1answer
285 views

Why doesn't a RPi detect a network extended via fibre optic cables?

I have a network connection extended via Fibre Optic (LC, singlemode) cables using two Standalone Media Converters like the MC210CS from TP-Link to bridge the Ethernet to Fibre and again back from ...
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0answers
84 views

raspberrypi 3 (minibian): wlan0 doesn't work without eth0 being plugged in to router

I'm customizing my minibian distro and now having hard time to set up two network interfaces: wireless (wlan0) and wired (eth0). I want eth0 to have a static IP (in case I need to connect it to the ...
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0answers
61 views

RPi3 with Mate: no HDMI output without Ethernet connection

I'm running Mate (LTS) on my new RPi3. Everything is working fine as long as I plug in an Ethernet cable. If the cable is removed, my screen (connected via HDMI without adapters) immediately turns ...
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3k views

Chromium can't reach site when i am connected to my wifi network

Yesterday i got my Raspberry Pi 3 model B and I have internet problem. I have Ethernet cable to my computer (mac) and I use my mac as a router. Everything works fine on my phone, but when i connected ...
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How to stop raspberry pi from disabling WIFI SSH access when ETH0 is plugged in

Hey everyone I have an rpi3 model B. Built in wifi works fine and ethernet too. However, I need to be able to plug it into a second network via ethernet but access it via ssh on it's wifi network (...
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1answer
1k views

Raspbian Jessie lite Ethernet defaults to random ip fresh install

Fresh install of Raspbian Jessie lite, headless, on raspberry pi 2 model b Have USB wifi dongle that connects me to network. However Ethernet defaults to a random ip address? And then plugging in ...
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2answers
832 views

Ethernet not working, sometimes defaults to random IP - raspberry pi 2 model b

Raspberry Pi 2, Model B Latest Raspbian Jessie - Headless I have spent literally weeks of my spare time trying to debug this - so naturally, it's probably a simple problem I have mucked up. I have ...
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1answer
2k views

Windows 10 bridge creates duplicate IP

The RPI is connected via ethernet to the laptop. There is a bridge on the laptop between wifi connection and ethernet connection. When I look at the pi's IP I get the same IP as the laptop. I ...
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1answer
6k views

Connecting two Raspberry Pi's via Ethernet

I'm currently working on a project that uses a rpi to do controls and data acquisition on a hydroponics system. However, I want to use another pi as a webserver that would also host a database for the ...
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1answer
88 views

Piface Digital Master and PiFace Relay Plus Slave

I wish to control four state reconfigurable antennas in a propagation measurements using RPis at both ends of the propagation channel. The headless master RPi has a PiFace digital to control the start ...
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1answer
57 views

Wireless connection dropping after pluging in ethernet

I have a rpi 3 model b and am currently trying to set it up so that it connects to my wireless network and then connects through an ethernet cable to a copier in hopes of eventually being able to use ...
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1answer
1k views

RPi zero ethernet connection via HDMI port using a HDMI to RJ45 adaptor

I would like to connect the Raspberry Pi Zero to my laptop using an ethernet cable without using the micro-USB port. Currently I can connect using ethernet cable through a micro-USB to RJ45 converter. ...
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1answer
757 views

Is 'dwc2' limited to USB direct connections?

The instructions for setting up a direct-connect RPi Zero over USB have me add dtoverlay=dwc2 on a new line to `config.txt', and insert modules-load=dwc2,... in cmdline.txt. Are these settings ...
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1answer
398 views

Both USB & Ethernet NOK on brand new Pi 3 Model V v1.2

I have a brand new Pi 3 Model V v1.2, using raspbian, with both USB and Ethernet completely dead - keyboard and network don't work. The same keyboard and network work on an older Pi 1 next to it. On ...
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1answer
2k views

Can't access to Raspberry Pi 3 via Putty

I just bought a Raspberry Pi 3 Model B starter kit. I am a Windows 10 user and I don't have a monitor. I wanted to use Putty to access to my Pi and followed this tutorial. In order to find my ...
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3answers
769 views

I cant get my Raspberry Pi B+ to connect to the internet through a static ip

I'm on a school network (dorm) with a predefined ip address, gateway address, DNS, and mask. DEFAULT CONFIGURATION I've burned Raspbian to a SD card. connected the Raspberry Pi to the wall with an ...
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1answer
45 views

Enable Etho by editing SD-Card on PC

My dad connects to his Zero over a mico-usb rj45 dongle, using SSH. Trying to change the MAC of the cheapo dongle using MACCHANGER, he disabled ETH0 (using ETH0 down) so any change of MAC wouldnt ...
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Why do the USB ports and Ethernet port share the same controller?

It is my understanding that the USB ports on the Pi share the same controller as the Ethernet port. This means if one was to use the Pi as a NAS, data transfer over the network would be restricted, ...
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0answers
42 views

Ethernet port acts weird

Friend has a Raspi 2, was installed with raspbian, but had ethernet issues. It wasn't configured at all, so after a few tries to fix it, I just loaded it up with a new Noobs Lite install. At boot it ...
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1answer
2k views

Does WiFi on the Pi 3 reduce the Ethernet bottleneck when using USB device?

We all know that on Raspberry Pi 2 and previous models, the USB and Ethernet bandwidth is shared, so when we transfer data over Ethernet to a USB device and vice-versa we are limited by this fact. ...
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13answers
39k views

Raspberry Pi 3 - eth0 wrongfully named 'enx…'

My new RPi 3 device (yay) recently booted up with a deactivated ethernet. So i watched /etc/networks/interfaces and saw the line: auto eth0 iface eth0 inet dhcp Calling ifup eth0 unfortunately gave ...
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2answers
2k views

Ethernet port on Zero and A+?

The Pi Zero and A+ both have what seems like space for an ethernet port on the bottom, in the section labeled J5: Is this really an ethernet port, and if so, how would one connect to it (provide ...