Tagged Questions

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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0
votes
1answer
32 views

FreeBSD Ethernet NIC driver not recognized

Intel Motherboard GA-H61N-D2V $ pciconf -l -v re0@pci0:1:0:0: class=0x020000 card=0xe0001458 chip=0x816810ec rev=0x06 hdr=0x00 vendor = 'Realtek Semiconductor' device = 'Gigabit ...
0
votes
1answer
8 views

Itcpdump output - why is it showing an Ethernet status?

tcpdump -i mlan0 -n tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on mlan0, link-type EN10MB (Ethernet), capture size 262144 bytes Why is this ...
1
vote
0answers
26 views

SOCAT / MINICOM “No such device or address”

I'm no Linux guru, however I've done quite a lot of research on Socat and I simply cannot create a device that Minicom can see. In this case, port 10001 is the port that a Black Box Ethernet to ...
2
votes
1answer
44 views

Does each network packet cause an interrupt to CPU?

While I know that lot of packet processing(CRC calculations, packet segmentation handling, etc) can be offloaded to NIC, then does each packet still cause an interrupt to CPU? Is there a difference if ...
0
votes
0answers
20 views

trouble bridging tap0 and tap1

I have a GNS3 router that is connected to tap1 in my host. On the other hand, I have an user application connected to tap0 running locally in my host. I can ping both the router and my application. ...
0
votes
0answers
36 views

connected to ethernet and wifi, “route” browser's connection to wifi only

Sometimes, in my company, I have to work with a different network (through ethernet) that has no internet. On the other hand, I do have access to out Wifi, which has internet. Since I have to spend a ...
1
vote
0answers
45 views

Setting up a 802.11s mesh network for mobile devices to communicate with a wired server

I'm in the process of developing an android app that maintains a device's connectivity to a linux-based WiFi mesh network, and periodically sends status information (GPS, battery life, etc.) to a ...
0
votes
0answers
20 views

How can I compile and run a program designed for an older kernel version (2.6) in a newer kernel (3.16)?

I'm trying to run a driver for a network card, but it only supports kernels up to 2.6.32. I need to be able to use this piece of hardware to connect to the Internet. The device I'm using is "VIA ...
1
vote
0answers
45 views

Cannot connect to the Internet using a Realtek Lan RTL8105TA card

I'm new to both Elementary OS and Linux on the whole. I have made a LiveUsb to try it out before installing it on my notebook. Everything works fine except for the internet. I don't have WiFi, but a ...
2
votes
1answer
30 views

How to do mac spoofing on Linux Mint 17?

How to do mac spoofing on Linux Mint 17? Through macchanger -a I've tried to changemy mac address but new mac id doesn't authenticates successfully. pppd gives successful authentication message only ...
5
votes
2answers
90 views

How to check programatically if the Ethernet cable is plugged in?

As you know, in Windows, when we plug in the network cable, the network symbol will change to another status. How can I know whether the cable is plugged in or not via the command prompt in Linux?
3
votes
4answers
360 views

Transfer files between Windows and Linux machines?

My problem is that I need to backup the files on my Linux machine to my Windows laptop. My external hard drive died, and so backing up to an external drive is out of the question for the time being. ...
0
votes
0answers
34 views

Why on my Linux PPPoE connection displays sometimes authentication failure?

Here is my log: Oct 18 09:51:52 -desktop pppd[2764]: Plugin rp-pppoe.so loaded. Oct 18 09:51:52 -desktop pppd[2766]: pppd 2.4.5 started by root, uid 0 Oct 18 09:51:52 -desktop pppd[2766]: PPP session ...
1
vote
4answers
246 views

How to find IP address of device connected on the same network as PC based on MAC id

A PC and embedded Linux device is connected on the same local network.(We don't have DHCP server access, IT admin has the access). We also don't have access to debug UART on the embedded Linux board. ...
7
votes
2answers
414 views

Identical MAC address on two different VM, yet I have internet connectivity

I have set up a network as such: Set up host-only networking on VirtualBox. The first adapter is configured with NAT, the second with host-only networking HOST: Windows GUEST: CentOS VM1, CentOS VM2 ...
2
votes
2answers
49 views

Test connectivity of a Interface

I have a raspberry Pi with three interfaces eth0 (Ethernet), wlan0 (WiFi), and wwan0 (via a GSM modem) How can I test if an Internet connection is available via a certain interface? e.g. is my ...
0
votes
0answers
122 views

BeagleBone Black doesn't connect via Ethernet on laptop

I have a BeagleBone Black board connected to my laptop with only a serial connection and the Ethernet cable, and powered by the 5mm jack. The serial connection works fine, I can login at any time, but ...
1
vote
3answers
63 views

How to get the original MAC address of a network card, after the OS modified it?

How can I find out the original MAC address for a network card, after it was modified by the OS? dmesg doesn't provide it, and the logs in /var/log too, and dmidecode doesn't provide it too and ...
0
votes
2answers
60 views

Wifi and ethernet unstable (takes many tries to connect, disconnects)

Both my WiFi connection and my Ethernet connection have recently (I'd say about a week ago) become unstable, without any change in the configs. Now in order to connect I've to try several times and ...
1
vote
1answer
78 views

How to test an ethernet card?

I have a USB->Ethernet card that may or may not be somehow broken. The problem is I don't really know how to test it. I have a normal Ethernet port as well, so I can hook a (already tested) cable from ...
0
votes
3answers
81 views

How do I configure my Linux computer to provide Internet to a FreeBSD computer via Ethernet port?

I have FreeBSD computer to which I want to provide with an Internet connection via the Ethernet port. I bought a single board computer (SBC Wangboard DUAL) onto which I have installed Ubuntu. I ...
1
vote
1answer
128 views

ifconfig ethernet (eth0) no data flow

Hello this is my ifconfig output: eth0 Link encap:Ethernet HWaddr 50:46:5d:44:5e:fe inet addr:10.0.0.6 Bcast:10.0.0.255 Mask:255.255.255.0 inet6 addr: ...
3
votes
0answers
85 views

difference tun/tap, is the interfaces that handle protocols or the OS?

I have difficulties to understand difference between tap and tun interface. I know it is an often asked question and I apologize for that. I asked the same questions on stackoverflow and someone told ...
0
votes
0answers
33 views

Intel Centrino Wirelsess-N 1030 not getting connected on generic mode in ubuntu 14.04

I upgraded Ubuntu from 12.04 to 14.04. After upgrading neither WLAN and ethernet work and also does not work in recovery mode (enable networking) or root shell. When booting the previous version ...
1
vote
1answer
112 views

Change eth0 to em1 on Scientific Linux

The aim is to standardize the Ethernet adapter type on all production servers. One of these servers disposes an em1, rather than eth0. Today, an attempt has been done to change it, without success. ...
0
votes
0answers
204 views

eth0 and wlan0 set-up problem in Linux Mint

I had a perfectly working wi-fi connection on my Mint-KDE PC. Recently, I brought a Synology NAS and after some research figured that I need to set my eth0 to static IP for it to connect to NAS via ...
0
votes
0answers
1k views

Linux Mint 17, Wifi Slow and Drops Connection, No Ethernet Connection

On a fresh install and updated Linux Mint 17 XFCE, the system cannot maintain an internet connection through wifi, and is unable to connect at all through ethernet. Wifi will work somewhat slowly for ...
10
votes
2answers
501 views

How can I create a virtual ethernet interface on a machine without a physical adapter?

I have a Dell XPS 13 ultrabook which has a wifi nic, but no physical ethernet nic (wlan0, but no eth0). I need to create a virtual adapter for using Vagrant with NFS, but am finding that the typical ...
4
votes
1answer
366 views

How can I most simply transparently bridge traffic between wlan0 and eth0?

I am looking to do this on a Raspberry Pi, but I don't mind which operating system I have to install, so the easiest most out-of-the-box solution for Pidora (Fedora 20 Remix), Raspbian (Debian) or ...
1
vote
2answers
74 views

netcat to capture ethernet

How can I make sure the result of the following command: nc eth0 &> capture.txt would capture the data + errors transmitted via eth0?
2
votes
1answer
76 views

reset Ethernet bonding without rebooting

I have the following Ethernet bonding configuration: old configuration: bond0 eth0 eth1 bond1 eth2 eth3 new configuration : bond0 eth0 eth2 bond1 eth1 eth3 I have made the ...
0
votes
2answers
120 views

Access remote server after running ifdown eth0

I had a problem: Could not retrieve mirrorlist http://mirrorlist.centos.org/release=6&arch=x86_64&repo=os error was 14: PYCURL ERROR 6 - "Couldn't resolve host 'mirrorlist.centos.org'" Error: ...
1
vote
1answer
50 views

Unable to see eth0 after ifconfig

Yesterday, I have done some changes in /etc/sysconfig/network-scripts/ifcfg-eht0 in centos 6. I have edited the value of nm_controlled= "no" after "Yes". Now, I am unable to see the "eth0" after doing ...
0
votes
3answers
2k views

eth0: ERROR while getting interface flags: No such device [duplicate]

I set up CentOS yet. it's no network connection. eth0 is not device list. I take a message network is unreachable while ping 192.168.0.1 the screen shot of device list How can I do reachable ...
1
vote
1answer
154 views

How to transfer data “offline” between osx and ubuntu?

I need to transfer around 50gb of data from my Ubuntu to my OSX. scp and samba are both too slow it seems - even with the Ethernet cable connected (14-15 hours!). I have physical access to both ...
2
votes
2answers
322 views

How can I install Fedora with a newer kernel?

I want to install Fedora on my computer with a netinstall, but it seems that the kernel doesn’t support my ethernet chip (Intel I218V). I tested Ubuntu 14.04 and Arch Linux and the ethernet chip ...
0
votes
0answers
80 views

Cannot connect to wired ethernet after hibernate

When I am at home I use wired connection on my laptop and it works fine. Then I put it to hibernate with sudo pm-hibernate and start it up again when I am work. I am not able to connect to internet ...
0
votes
0answers
236 views

Nvidia ethernet port not detected on Centos 7

When I tried to install Centos 7, my Nvidia ethernet port was not detected during the installation, whereas in all other distros it works perfectly without any problem. My rig is an AMD Athlon x2 64 ...
2
votes
0answers
215 views

Multiple virtual interfaces all bridged to eth0

I'm following this tutorial for setting up bridged a bridged Ethernet interface using uml-utilities and bridge-utils and it works for 2 interfaces but no more than 2. What I'm trying to achieve is ...
3
votes
1answer
105 views

How to tell if two ethernet interfaces are on the same lan?

I have to secure interfaces on Linux servers by setting bonding interfaces. The cabling information is not accurate. Is there a simple way to know if two interfaces are connected to the same LAN? ...
0
votes
0answers
148 views

How to make linux see my internet connection?

I'm sort of booting off of a Mint 17 LiveCD (the situation is described here: How can i make my pc boot back into windows?) and the network does not work. It's wired if it matter. I've also tried to ...
0
votes
1answer
311 views

wired ethernet interface not detected by lshw, lspci

I have a Toshiba Satellite PSAG8U-04001W. No eth* interface shows up on ifconfig. $ ifconfig -a lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 ...
9
votes
1answer
270 views

Why my ethernet interface is called enp0s10 instead of eth0?

Just that, when I run ifconfig -a I only get lo and enp0s10 interfaces, not the classical eth0 What does enp0s10 means? Why is there no eth0?
4
votes
1answer
42 views

How do you ensure physical network interfaces always get the same interface name across reboots on an embedded Linux system?

For an embedded Linux system, if I have two or more network interfaces, how do I ensure that they always get the same interface names every boot In other words, I want, for example, eth0 to always ...
2
votes
1answer
244 views

Check for plugged in network cable on startup

I actually wanted to post the below as an answer to this question titled: ifup eth0 timeout during boot. But am not sure if this is right approach or it's a way of screwing up things badly. We can ...
0
votes
1answer
103 views

Route a local connection via an ethernet link in QNX

I am currently facing a challenge in QNX, where I have 2 Network Interfaces - viz. one Network port from PCIe Ethernet Expansion card (wm0) and other from the normal Ethernet port (en0). I have ...
0
votes
0answers
79 views

OpenBSD Atheros AR8151 no Ethernet media present

I installed OpenBSD 5.5 on an ASRock AD525PV3. The board uses the mentioned Atheros LAN. It shows alc0 on ifconfig, but the media only has Ethernet manual, and I can't use the LAN. Is there a way to ...
2
votes
1answer
130 views

Most reliable way to check for connected client?

I have an embedded Linux OS developed from scratch using Yocto. This talks to a Windows XP/7 client. The embedded OS runs a DHCP server and gives an address to the client. The problem is that the ...
3
votes
1answer
166 views

Ethernet adapter stuck at 10 Mbit/s

My Ethernet adapter is somehow stuck at 10 Mbit/s. Here's the output of ethtool eth0: Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full ...
0
votes
1answer
470 views

Ho to bridge wlan0 in AP mode and eth0 so that eth0 is static and wlan0 uses DHCP?

I have a router that provides internet access. Connected to this router is a desktop PC that has working eth0 (static IP address) and wlan0. Also connected to the router is a laptop which I use to ...