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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29
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13answers
68k 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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9answers
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What are the possible OUIs for the Ethernet MAC address?

I'm setting up a computer lab in which many Raspberry Pis are going to acquire IP addresses via DHCP. I'd like to have the DHCP server to differentiate between Raspberry Pis and other clients. What ...
29
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1answer
11k views

Does the Pi 4 resolve the Ethernet+USB bottleneck issue of past versions?

The Pi 3 (and previous models) had an issue of bottlenecked bandwidth when using Ethernet and USB simultaneously. Is this resolved in the Pi 4?
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4answers
12k views

Pi Headless: How to confirm that the Pi is shut down

I am running my Pi headless connected to my wireless router using a ethernet cable. I wanted to shut down the pi remotely even when I am not connected to it using SSH/Putty to shut it down exclusively....
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3answers
24k views

Why am I getting far slower internet on my Raspberry Pi when compared to my Mac and Windows Computer

I have reasonably fast broadband, which on my Mac, using Safari 6, is perfect for my uses. Webpages load quickly, and I am extremely satisfied with it overall. My Raspberry Pi is another story. I can'...
12
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4answers
36k views

Raspberry Pi w/ 2 ethernet ports

I need to use two ethernet ports for a GW like target. Is there an alternative to the RPi, or a way mod the RPi so that it has two ethernet ports? Community Edit Note: The original content of this ...
12
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4answers
19k views

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, ...
10
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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. ...
10
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1answer
10k views

Low bandwidth internet over VPN

I've just finished setting up a VPN'ed NAS with my newly acquired un-overclocked Raspberry Pi Model-B and I've run into something I can't find an answer for elsewhere. The internet bandwidth, as ...
6
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5answers
72k views

Connect raspberry pi to pc (ubuntu) with ethernet

I tried to connect raspberry pi (headless because I have no monitor to use) to an Ubuntu PC using ethernet using link-local setting on the network manager, setting the ip of the pi using "cmdline.txt" ...
6
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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. ...
6
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2answers
27k views

Setting a static eth0 ip

I have been trying to set up a static IP for my Raspberry Pi. From what I understand I need to change the interfaces file at /etc/network/interfaces. My file (based on this tutorial) looks like this: ...
6
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1answer
3k views

Pi Zero: Any way to solder on an Ethernet Port?

I was wondering if it's possible to solder on an ethernet port. Having a OTG USB to Ethernet is a bit bulky. What I'm trying to do is fit a Raspberry Pi inside my MacBook, and then solder the ...
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3answers
18k views

Share Internet Connection from Windows 7 to RPi

You have probably seen a similar question somewhere. I have a laptop connected to my Internet with a Wireless router and I want to share my Internet Connection with my RPi via crossover Ethernet ...
5
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3answers
874 views

Possible to power a Raspberry Pi Zero or B+ plugged in via an Ethernet port?

I want to build a device using a Raspberry Pi where you plug in the Ethernet port into any Ethernet port device and then from the Raspberry Pi it routes it back into the same device. Say for example: ...
5
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1answer
1k views

Building a 'Packet squirrel" using Raspberry Pi

I recently read about hack5s' Packet squirrel, and now I am interested in building a similar device that sits between 2 endpoints (say router and PC) and monitor all the traffic but be invisible to ...
5
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4answers
3k views

512MB suddenly not recognizing USB or ethernet

I have a 512MB Model B (2012 edition I believe, possibly 2011...china made) and recently my power cord was partitally chewed through. Obviously, the Pi wouldn't boot up, as I noticed when I tried to ...
5
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3answers
8k views

Raspberry Pi disconnects from network

I have installed Raspbian and have attached 2TB External Hard Disk via USB with ext4 partition. I am trying to use it as a NAS device. Also I am accessing Pi over SSH from LAN and also from Internet. ...
5
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1answer
7k views

How do I route between subnets on a single ethernet interface?

I would like to set up a Raspberry PI as a router between two subnets on the same network using the standard built in ethernet interface. The aim is to be able to use this to monitor network usage (...
4
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2answers
3k 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 ...
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6answers
26k views

Cannot connect to internet - No DHCPOFFERS recieved

I have used ethernet cable to connect to a modem for internet connection to my raspberry pi. I am getting error messages when trying to open a page. when i tried sudo ifup eth0 i got this error ...
4
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1answer
1k views

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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3answers
8k views

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 ...
4
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4answers
8k 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 ...
4
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1answer
3k views

Can I connect directly via ethernet?

At the moment, I am SSHing into my Pi from my laptop. Both are connected to my router. However, it's a bit of a bother connecting the Pi to the router (ie router on the other side of the house). Can ...
4
votes
1answer
775 views

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 (...
4
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3answers
4k views

Can I determine the MAC address without booting up?

I have a number of Raspberry Pi 2 and need to know the MAC addresses of these before installation. Is there a way to get or deduce the MAC address given access to the physical Pi but without having to ...
4
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3answers
369 views

Is it possible to power the RPi by re-assembling the ethernet port?

Based on this schematics document, I think it is possible to power the Raspberry Pi using the Ethernet port. (See page 3, location 5-6 I-J.) Unsolder the Ethernet connector, take pins 4,5 and 7,8. ...
4
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2answers
997 views

SMSC95XX Ethernet Load Time

So I have a custom minimal kernel I have created which boots fine on the RPI. I'm using busybox for my init process. However I am having some trouble with the ethernet port. (This is on the model B ...
3
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1answer
1k 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 ...
3
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1answer
3k views

Does the Pi use all the ethernet pins?

Since the Pi does not support gigabit Ethernet, does it use all the Ethernet pins? are some left floating, or are they connected to something? (100mb/s Ethernet is achievable with only 4 of the 8 pins)...
3
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1answer
11k 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 ...
3
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3answers
2k views

How to make Raspberry shutdown when I unplug the ethernet cable

I use my Raspberry Pi Model B with Raspbian as a server and I want to know (if it is possible) how to make that the Raspberry pi send itself a halt command when I unplug the Ethernet cable (eth0) Any ...
3
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2answers
20k views

Sharing internet through ethernet port? [duplicate]

I have a situation where I need to share the Raspberry Pi's internet connection through the ethernet cable. The Raspberry Pi is already connected to the internet with a Wi-Fi dongle, but I'm not sure ...
3
votes
2answers
807 views

Raspberry Pi Ethernet port not working after thunderstorm

I have a Raspberry Pi (512 Mb ram) running Arch Linux ARM, connected to my router working as a vpn server. After a thunderstorm, the Ethernet port stopped working. It won't even blink anymore. The ...
3
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2answers
2k views

Which Raspberry pi OS images support ENC28J60 ethernet port natively?

Which Raspberry Pi OS images support ENC28J60 Ethernet adapter natively? If none, how can this be installed via the command line and on which OS image?
3
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1answer
2k views

Disconnect and Reconnect ethernet

I have my raspberry hooked up via ethernet to a printer. So what happens is the raspberry takes about 4 mins to get itself ready as a sort of server, and by that time the printer gives up trying to ...
3
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1answer
5k 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 ...
2
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3answers
7k views

SSH to Pi through putty Connection Refused (Raspbian Wheezy)

I just got a RPi2 Model B a few weeks ago and just started to program with it. I am trying to connect to the Internet for the project I am doing. So the OS is installed on my SD the only problem I am ...
2
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3answers
56k views

Why Isn't My Ethernet Working?

I just got Pi Model B. I downloaded Wheezy on SD card and plugged in all of my cords. Everything works fine except the Ethernet port. The LINK LED flickers for a second while booting up, but then it ...
2
votes
3answers
4k views

Connecting to Pi over the internet - Already tried a lot of things

I read some tutorials here on connecting to my Pi via SSH. I have successfully done this over my own network. I am trying to do it from the internet (I use my phone's hotspot to attempt from outside ...
2
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2answers
75 views

Ethernet Connection via Laptop to Raspberry Pi

I have been trying to design a project on my R-pi for months. I have been able to work of my R-pi from my home WiFi. However when I enter my Library's public network it cannot connect to the servers. ...
2
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2answers
1k views

Static IP Issues For wlan0 and eth0

I'm having issues with using a static IP for a Raspberry Pi 3. What I'm trying to do is connect 4 Raspberry Pis as nodes/slaves to a single Pi which will act as the server/master. I'm using OSC ...
2
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1answer
445 views

The easiest way to make some rasberry pi communicate

I need to make few Raspberry Pi communicate (but should be nice to have a system that can be easily scaled up). The boards could be at big distance from each other (from few centimeters to 15 meters ...
2
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1answer
685 views

How do I setup DHCP on a 2nd port?

My Main Question How do I configure my RPi so that I can share its internet connection with an IoT device plugged in via ethernet cable in addition to sharing its internet connection via its wifi-...
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3answers
2k views

Network Hats for Raspberry Pi 3

I am trying to be able to connect Raspberry Pi 3 to two networks at the same time through Ethernet. Unfortunately it has only one Ethernet port available. The solution so far is to buy a network hat ...
2
votes
1answer
6k 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 ...
2
votes
1answer
757 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 ...
2
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2answers
1k 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 ...
2
votes
2answers
2k views

USB-LAN adapter over USB hub

I want to make a router-access point with a Raspberry PI model B. But I need 5 LAN ports (4 WAN ports and 1 LAN). So I tried this: On one USB I place an USB Hub and on every port a usb-lan adapter ...