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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4answers
478 views

Device vs network interface IP addresses

I'm trying to understand the relationship between: A "networked" Linux device; and The physical NIC card located on that device (giving it the ability to be "networked"); and Various Ethernet/Wi-fi ...
1
vote
3answers
108 views

Don't add new ethernet interfaces, use it as eth0

I have multiple ARM devices on which Debian runs. I have a single image saved from the SD Card and intent to use it on all devices. Now I have the problem, that each time the MAC address of the eth, ...
2
votes
1answer
231 views

How to set Ethernet link speed & duplex

How can I configure my Ethernet (eth0) link speed and duplex on my systemd & connman based system? I've previously used a script in /etc/network/if-up.d, in which I could make a call like: ...
2
votes
0answers
602 views

Could not resolve host: mirrorlist.centos.org

I did a fresh install of CentOS 7 on an Acer Inspire T. It is a terminal-only installation (no GUI). I connected the CentOS 7 box to a cable modem via an ethernet cable, and the cable modem is ...
2
votes
3answers
366 views

Trying to get Ethernet working in Linux

I just installed Fedora 22 alongside Windows 10 on my desktop and I've been trying to get the Ethernet to work for a long time. There is no wireless and this is my only source of internet connection ...
6
votes
1answer
513 views

2 IPs on 1 ethernet adapter

I'm trying to get 2 ethernet adapters to work. The first one, eth0, works out of the box. The second one, eth1, acts weird. This port uses the LAN9512. This is my /etc/network/interfaces file: auto ...
0
votes
0answers
63 views

Questions about setting up an OpenWRT Router as a client and ethernet ports

I'm fairly new to Linux and wanted to create a little OpenVPN setup. I have a computer setup with an openVPN server and a (cheap TP-link) router with openWRT and OpenVPN (client). Basically, I want to ...
2
votes
1answer
457 views

Get MAC address of a directly connected device

Given a Linux server with an ethernet card, another device say an unconfigured router is connected with a patch lead (or an ethernet lead cabled in a different way if needed). They're both powered ...
1
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0answers
70 views

Different behaviour over WIFI and LAN-Ethernet when connecting via VPN

I have some problems getting my internet connection working over the LAN, meanwhile over the WIFI, everything seems to work nicely with my Ubuntu 14.04 LTS machine. First thing I do is connecting to ...
0
votes
1answer
163 views

Wired connection drops after a few seconds

When I connect to my wired network using netctl, the connection drops automatically after a few seconds. It happens both with DHCP and static configuration, but the wifi connection on the same network ...
0
votes
0answers
61 views

How to change network buffer of network interface to get errors?

I tried with sudo ethtool -G eth0 rx 1020, but im getting this error Cannot get device ring settings: Operation not supported. Is there any other way to change network buffer to simulate NIC card ...
0
votes
0answers
92 views

Prefer wired over wireless for local subnet using NetworkManager

My wireless network is bridged to my wired network, so both have the same subnet. How do I tell NetworkManager to give the local subnet route on the wireless interface a higher metric than the route ...
0
votes
1answer
483 views

Arch-Linux after system-update no internet connection but connection lan

Yesterday I updated my Arch Linux after 2 Months with sudo pacman -Syu and after the reboot I don't get any connection with the Internet neither from Browser nor with Skype, etc. When I try to ping ...
2
votes
0answers
119 views

No ethernet device detected

I'm trying to setup Archlinux on VMWare Workstation and for some reason I cannot find my ethernet card. In lspci | grep Ethernet it says Ethernet controller: Intel Corporation 82574L Gigabit Network ...
0
votes
1answer
199 views

eth0: supported ports

I am having a board with RTL8111/8168B PCI Express Gigabit Ethernet controller, which requires r8169 kernel module to work. After inserting this module, network get started by eth0. Now, due to old ...
0
votes
1answer
70 views

Can't find eth0 in my ifconfig output

I have a old desktop with ASUS P5KPL AM/PS board with intel core2Duo processor. I have installed kali linux on it when I run ifconfig in root shell all I can see l0which is my loopback address and ...
0
votes
0answers
2k views

Realtek RTL8111 Network card not working on Ubuntu 14.04

I'm trying to install an Ethernet Card into my Ubuntu 14.04 desktop computer. Here is my lspci output (First one is my new ethernet card): 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. ...
0
votes
0answers
177 views

Ubuntu - Ethernet Card Driver Installation: asm/linkage.h file not found

I'm trying to install an Ethernet Card into my ubuntu 14.04 desktop computer. Here is my lspci output (Second one is my new ethernet card): 03:00.0 Ethernet controller: Marvell Technology Group Ltd. ...
0
votes
1answer
1k views

Can't connect to ethernet Linux Mint 17.1 Xfce

I have just installed Linux Mint on my netbook (HP Compac Mini 700). I have managed to make it connect to WiFi, downloading driver, but it won't connect via cable. Strangely enough, the other day, ...
4
votes
2answers
342 views

Linux network stops functioning after random time (wired)

I'm unsure if this is hard or software issue but I really need to find out. I was running Windows 8.1 for some time, then swapped to Linux mint with kernel 3.13 which worked fine. I updated kernel to ...
0
votes
0answers
17 views

Which technologies can be used to build up communication between MIPS linux and Windows?

We have an embedded Linux system running on a MIPS processor board. This system is used to control and to poll some other hardware, and to consolidate all the measurement data in one place. Now, we ...
1
vote
3answers
863 views

Impossible to have two network interfaces wifi and ethernet (as a backup) working together

I have a raspberry 2 with a wifi interface and an ethernet interface. wifi is my main connection with the ability to just plug in the ethernet as a backup method. I want to assign different static ...
0
votes
0answers
31 views

Ethernet adapter not recognized at all (Steam Os)

I have an issue where my Ethernet adapter(realtek TL8118AS-CG0) in my Samsung np365ec (amd a8-4500m Quad core 4gb of RAM) is not recognized at all. The wireless card works fine but is only 2.4ghz, and ...
0
votes
0answers
73 views

Is it possible to control and limit the transfer speed of a Ethernet TCP/IP via command?

I'm suffering from some "low data transfer" from a device running Embedded Linux to my computer. I'm aware that it has some hardware limitations that could be strangling the speed (e.g. 372 Mhz ...
1
vote
1answer
53 views

Delay after a MAC change

I am writing a script that will change my ethernet MAC address on a local network. It will work as follows: Initially eth0 will be brought down MAC will be changed using the ifconfig utility eth0 ...
1
vote
1answer
77 views

Two networking interfaces trying to get an IP via DHCP

When using: /etc/network/interfaces auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp auto wlan0 allow-hotplug wlan0 iface wlan0 inet dhcp wpa-ssid "<myssid>" wpa-psk ...
0
votes
1answer
112 views

Boot blocked during 1min30sec because /etc/network/interfaces

With the following config (see config file below): if only ethernet cable is connected, it 100% works: I can quickly SSH the computer via eth0's IP, if both ethernet cable and wifi dongle are ...
1
vote
0answers
105 views

Ethernet USB dongle works then randomly drops until restart

I've been using xubuntu 14.04 as my daily driver for a while now, as I've been getting into web development. I'm using a dell ultrabook that has no ethernet port (XPS 12 9Q33), and so I have usb 2.0 ...
0
votes
1answer
16 views

I wish to move SBC flash image to new board and maintain network interface indexing

I wrote a small php application on a SBC. I created a disk image from the CF card. When I write the image to a new CF and install on a new SBC the interface index numbers (I hope I am stating that ...
0
votes
1answer
301 views

Problems Setting Up DHCP Server On CentOS 6

I have been trying to set up a DHCP server on CentOS 6 running on an Intel NUC i7. I have installed dhcpd and am using the example dhcpd.conf subnet 192.168.1.0 netmask 255.255.255.0 { option ...
1
vote
0answers
32 views

Configure the network interface to send frames with 802.3 format on freebsd

Is it possible to configure my Freebsd (or Linux) so that all frames are sent in the 802.3 frame format (with the LLC part of 802.2) rather than Ethernet 2 frame format ? Thank you
2
votes
1answer
467 views

How can I share my internet connection (wireless) with an ethernet only computer?

I have a raspberry pi B+ set up in a server configuration and it connects to internet succesfully over Wifi with a USB dongle. My other pi (an A+) has always been located downstairs in the garage, ...
0
votes
0answers
62 views

in realtek 8139cp driver code, where does the start_xmit function triggers the chip?

Hope somebody could give me an explanation. I was looking at http://lxr.free-electrons.com/source/drivers/net/ethernet/realtek/8139cp.c#L731 and found in cp_start_xmit(..) function, there are all ...
0
votes
1answer
21 views

Error while trying to connect 2 pcs in lan

I'm trying to connect two PCs in local network and am having difficulties: not that information you need, so I will put some, if I can put it need more: pc1: OS GNU/Linux Mageia pc2: OS GNU/Linux ...
1
vote
1answer
113 views

check tcp packets reception below tcpdump level

I am having an issue with my smartphone device and packets monitoring: I am trying to find a reason why I cannot establish a VPN connection via PPTP protocol. I have the following successful ...
1
vote
1answer
99 views

How do I understand if an USB Ethernet adapter is compatible with a certain kernel version to use it to load kernel/filesystem?

I'm using an old kernel, 2.6.32, and I would like to boot the kernel over TFTP and mount the filesystem over NFS. Mounting the kernel over TFTP is a plus, but mounting the filesystem over NFS is a ...
0
votes
1answer
491 views

How to make virtual interface ping to a host in the network

I crated a virtual interface as indicated in this link. sudo modprobe dummy sudo ip link set name eth10 dev dummy0 sudo ifconfig eth10 up sudo ifconfig eth10 192.168.1.150 now if I want to make a ...
2
votes
1answer
152 views

Addresses overlaps

I was putting somes static addresses to my interfaces then it shows me this: 172.16.1.0 overlaps with FastEthernet 0/0 What does it mean when two addresses overlaps and how can we avoid it? EDIT: ...
0
votes
0answers
39 views

wireless and wired both not working at the same time

On a Raspberry Pi, running Raspberry OS, I have bridged eth0 and wlan0 in order to share the internet connection of Ethernet using wifi. both the interfaces are configured and both are up.but after ...
1
vote
1answer
261 views

How to enable ping between machines connected in two interfaces?

I have a linux board with two ethernet interfaces as mentioned below. eth0 connected to another linux machine (ad-hoc) eth0 on board 191.168.1.2 connected to Linux machine 192.168.1.3 eth1 on board ...
2
votes
1answer
263 views

set MAC address in “interfaces” file without configuring other network parameters

Under Debian Wheezy permanent network configuration takes place in /etc/network/interfaces file. Is it possible to configure hwaddress for an interface without configuring other network parameters ...
0
votes
0answers
40 views

POE Connection Failure

I have 2 POE ports which are on different NICs. When I connect them together the ports' Ethernet does not come up. In other words, the associated "port status" register of those ports should turn to ...
2
votes
1answer
153 views

How does server identify frames in case of multiple VLAN sub-interfaces?

When I create a VLAN sub-interface in Linux, then it gets the same MAC address as its parent interface. For example with ip link add link eth0 name eth0.333 type vlan id 333 command, the eth0.333 gets ...
1
vote
1answer
79 views

Possible to reserve a network interface for exclusive use?

Like the headline says: is this possible in Linux at all? How would one implement a completely silent packet sniffer? I would like to take the interface away and give it back to the OS at will, if ...
2
votes
1answer
390 views

Do I have a dead NIC?

OK so this is kind of a long one due to command output. Not necessarily in complexity as I'm only showing some basic t-shooting so any feedback would be appreciated. Basically, I have a fairly new ...
2
votes
1answer
81 views

make my Debian laptop switch autoamtically to a backup connection

I have a laptop with Debian OS installed under it. It is initially connected to the internet using an Ethernet cable (via a modem) and I want to automatically switch to a backup wifi connection (which ...
1
vote
1answer
63 views

Realtek 8160 not detected on LFS

I completed LFS and it boots but I'm not able to get the networking to work. When I do a ifconfig it list the lo that is the loopback network but doesn't detect eth0 and also says doesn't exist. If i ...
-2
votes
2answers
369 views

How can I find the name of my Network Interface [closed]

I have a project that requires me to scan the local network. I found a program on the internet that allows the local network scanner condition, but I brought the gold @ IP argument in my network ...
0
votes
1answer
515 views

Debian wired connection static IP wont connect

I've installed Debian with xfce and did some configuring by installing themes, configuring xfce, installing and uninstalling software; the usual. Anyway, after a reboot I can't connect to the ...
1
vote
1answer
272 views

catch kernel panic log

My Mint Cinnamon system on Lenovo g565 keeps hanging every several hours. I think the problem may be somehow connected with network and desktop environment, because either plugging ethernet cable ...