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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23 views

dhcpd on two network interface how to?

I have an embedded system that has Ethernet and wifi. I want to setit up in a way that it provides IP to both interfaces. The system uses BusyBox. and I an new in this area. can you provide a sample ...
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2answers
278 views

Cannot connect to ethernet on a cable modem

I have an Arris cable modem, and my laptop has a JMC250 PCI Express Gigabit Ethernet Controller. I'm unable to connect to its wired network either with NetworkManager, Wicd, or the command-line on ...
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0answers
98 views

Connecting BeagleBoard-xm OS Angstrom direct to Laptop ubuntu 12.04

I have BeagleBoard-xm with Angstrom OS. My Laptop's OS is Ubuntu 12.04. I managed to connect Laptop to another Laptop, direct through crossover cable. I wanted to connect BeagleBoard-xm to the ...
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0answers
57 views

Cisco router interface connected to PC is up while PC interface is down

I have a following topology: C2801[Fa0/0] <-> [eth0]PC According to Cisco 2801 router, the interface facing the PC is up: C2801-A#sh int description Interface Status ...
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1answer
669 views

Setting up Intel Giga PHY I217V on Debian 2.6.32 kernel

Trying to getting the Intel integrated network card driver (Giga PHY Intel I217V) working on Debian (kernel 2.6.32) but I'm having issues. I've downloaded the driver from the Intel website and ...
9
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1answer
362 views

Send a packet over the network even when its target is the local host

Under Linux if you send a packet to the address of one of its network interfaces, this packet is routed internally, it is never sent over the network. That's the right thing in 99.99% of the cases. ...
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2answers
630 views

How to check if ARP is enabled or not

I have enabled the arp support on my dell based server running linux on it. I wanted to check that if arptables are enabled or not. Could anyone tell me how do I check the same? Is it enough to run ...
3
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1answer
494 views

usb0 -> what exactly is it for?

So far, I found out that on GNU/Linux /media/usb0 seems to be a mount point for Ethernet over USB. Nice. Question: Where is defined, what usb0 is exactly for? I distilled the above mentioned ...
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1answer
3k views

serial data over ethernet on a linux box

I'm trying to connect a widget (192.168.1.214:20108) through Ethernet (serial to Ethernet) to a Linux box. Under Windows using a virtual device driver mapping I can see the serial data, so I know ...
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0answers
142 views

Linux Mint 15 Ethernet Issue

I have a dual boot system with Mint and Win7. Under Mint the wired connection is going in and out randomly, short period of being out and 10-20 minutes up and working. I start up Linux and ...
0
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1answer
1k views

Mint 15 on Lenovo G700: wired internet not working (Atheros QCA8172)

Mint 15 doesn't see internet after installing it in dualboot with windows 8 (in Windows internet works well). My network card is Qualcomm Atheros QCA8172 Fast Ethernet (rev 10). What I did: Install ...
2
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1answer
48 views

Multiple Lan interfaces on one VM rather than multiple VM

I'm looking if it's possible to give rights, to only allow the use of one network interface to a specific user on a Linux distribution. My use case: I want, for my studies, testing the ...
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4answers
1k views

Internet not working

I am using Linux mint. And this is my kernel. uname -a Linux nithesh-desktop 3.8.0-19-generic #29-Ubuntu SMP Wed Apr 17 18:16:28 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux I was having a networking ...
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2answers
1k views

No ethernet/wireless connection after dist upgrade - “network UNCLAIMED”

I did an upgrade from Xubuntu 12.04 to 12.10, and I can't connect to the internet now. When I press the network button on the panel, I see "No network devices available" on top (greyed out), then ...
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3answers
5k views

Can't connect to to internet. Debian Wheezy, pinging DNS address works

I have booted Debian Wheezy from SD card on a Beaglebone Black board. Version: debian-wheezy-7.0.0-armhf-3.8.13-bone20.img.xz, from http://www.armhf.com/index.php/download/ I have set up my ...
2
votes
1answer
301 views

Hardware Timestamping using PTP

I'm new to Linux programming. I have an Intel NIC with e1000e driver. I'm working on accurate time stamping of packets being captured from a network. My question is if I want to use RT Linux how ...
2
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2answers
1k views

ethtool get permanent MAC address returns all 0's

I need to read permanent (burned-in) MAC address of network adapter. Since MAC address can be easily spoofed, I need to read the real one which is written on EEPROM. I need to do it using C++ on ...
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3answers
1k views

How do I share an internet connection through USB?

I have two Linux boxes. One is running KNOPPIX and the other Ubuntu. I have only one wifi dongle between them, and only one of them has an Ethernet port. They both have free USB ports however. I ...
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0answers
17 views

Change name of em1 to eth0 in Fedora 19? [duplicate]

I have already followed the instructions here but it doesn't seem to work, as my ifconfig output still shows the same "em1","em2" and "lo". I just need a way to rename one of these to eth0 in Fedora ...
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3answers
1k views

Why is delay after ifconfig down needed before up if changing MAC address?

Hi I made bash script to put down my interface, change MAC address and get it up again. #!/bin/bash INTERFACE_STATUS=$( cat /sys/class/net/eth0/operstate ) echo "$INTERFACE_STATUS" if [ ...
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0answers
298 views

wpa_supplicant connection issue: iw dev wlan1 link shows connection, but network unreachable

I've been testing a Wifi card in my machine and I can't seem to get it to connect to my home router. The card is a ralink rt37, I compiled the modules that I needed into the kernel and downloaded a ...
3
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1answer
111 views

Linking Ethernet interfaces

I'm quite new to Linux networking. I have a Debian PC with two Ethernet interfaces, one embedded on the motherboard and another on a PCI card. The first one, let say eth0 is connected to my router ...
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1answer
4k views

How To Diagnose Faulty (onboard) Network Adapter

I'm looking for advice on diagnosing ethernet connectivity issues under Linux. I suspect it's a hardware issue, though I am not entirely sure. It's an nVidia chipset and ethernet adapter. The device ...
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0answers
764 views

Linux Mint 15 Ethernet Problems

I have a problem with my ethernet connection on my mint 15 (my WiFi works fine). Right after install, it didn't work at all, I followed some solutions I found (including this one) and no luck. I had ...
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0answers
140 views

Bonds vs. Aggregators

I'm almost to the point where I can post the solution I wound up with for my complex port bonding question. However, in reading the bonding.txt file, I see this option text: ad_select Specifies the ...
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1answer
343 views

Unable to recognize old interfaces after motherboard update

I updated motherboard on x240 computer node, now the ethernet interfaces show up as eth2 and eth3 previously it was eth0 and eth1. I tried to delete /etc/udev/rules.d/70-persistent-net.rules file but ...
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0answers
88 views

No network interface for the lan9118 emulated on QEMU 1.4.0 overo machine

Im using QEMU 1.4.0 Ubuntu 13.04 distribution. Im trying to make the virtrual machine part of the host network so Im ussing this command: sudo qemu-system-arm -M overo -m 1024 -sd ./test.img -clock ...
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0answers
161 views

RHEL 5 complex port bonding

The RHEL 5 documentation is good about bonding pairs of ports in various ways. The Oracle team where I work want to get more complex than that. They want an active bonded pair, with a third interface ...
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3answers
1k views

Using multiple NICs for faster internet?

My laptop have a ethernet card and a wifi card. Ethernet line have maximum download rate at 1.5MiB/sec and wifi is over 1MiB/sec too, but it seem only have one NIC can working at a moment (if I turn ...
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0answers
54 views

Can we Bring Up eth1 after removing e1000e modules?

I am trying to setup TCP in RTnet. I am not sure whether its possible. I read that RTnet is not supporting TCP. Is that so? So now I am trying to setup rteth0 as server and eth1 as client. To setup ...
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0answers
324 views

Bonding configuration on a blade server with Oracle 6.3

I'm trying to configure a mode 6 bonding on a blade server. Blade Enclosure: HP c7000 Blade Server: ProLiant BL460c G1 Redundancy part of the bond is working, I can pull out any one of the cables ...
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1answer
165 views

Parsing protocol and url from packet payload

We are using pf_ring to capture packets. We are able to decipher information like source and destination ip, mac etc from the header information. Now we are moving into payload to decide the type of ...
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0answers
168 views

Super slow internet requests

My Internet connection seems to be extremely slow on loading pages, specifically (it appears) when the browser sends the request for the first time. It takes like 5-6 seconds just to send the request ...
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3answers
711 views

Find out if computer started via Wake-on-LAN or power button?

Is there any (reliable) way to find out if the PC booted because of a Wake-on-LAN Packet instead of pressing the power button? I want automatically check if WOL is correctly configured. I know about ...
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1answer
75 views

Hardware Ethernet IP Limitation

In Linux Environment How many number of IP address I can assign to a Hardware ethernet interface ? Is there any limitation ? what is the maximum no. of virtual ethernet interface I can assign to a ...
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0answers
94 views

Identifying MaxSpeed of a Bonded Interface

I have configured Ethernet Bonding for our RHEL 6.2 Servers. Bonding is working fine but few confusion for me when I configured MRTG to monitor the bonded interface. MRTG is showing MaxSpeed of the ...
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1answer
3k views

Problem compiling a driver : “No rule to make target”

First of all I am running a CentOS 6.4 installation. My computer is a laptop and I am trying to install the drivers for my ethernet card, because this week end I lost my ability to connect to the ...
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0answers
216 views

Troubles with Wifi and ethernet Aspire One AO725

I'm use Debian wheezy on a Acer Aspire One AO725. It has the following kernels: 3.2.0.4-amd64 3.7-trunk-amd64 The command lscpi | grep Network: 02:00:0 Network controller: Atheros ...
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3answers
2k views

Virtual Interface Not Showing up in ifconfig?

I am trying to create a virtual interface for the purpose of NameBased Virtual Hosting on my CentOS linux box; please find below is the devices' information:- DEVICE=eth0 BOOTPROTO=dhcp ...
5
votes
3answers
4k views

RHEL: Creating stable names for network interfaces

We have a RHEL 5.5 box with 8 interfaces. And the eth interface naming is flip flopping. Sometimes eth0 comes up on physical port 7th, and sometimes on another physical port. We want the naming to ...
1
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1answer
162 views

Setting up network cards on FreeBSD

I just installed FreeBSD 9 on a new laptop and I'm having some trouble getting the network cards to work. Presumably the file representing the cards is in /dev, but where would the configuration files ...
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2answers
432 views

Creating an Alias to Loopback Interface with an Arbitrary Name

I have an odd problem that seems simple enough but has evaded me thus far. I am attempting to support a legacy application that has a hard-coded ethernet device name ("eth0"). This hard-coding, I am ...
0
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1answer
464 views

How do I check if I have packet socket support enabled in my distro's kernel?

How do I check that packet socket support has been compiled into my kernel? I'm running Crunchbang, a Debian-based distribution.
1
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0answers
928 views

Unable to install Atheros AR8161 Ethernet controller driver for centOS 6

I've installed CentOS 6.3. However, eth0 does not show up on ifconfig. So I figured out that I need to install alx Ethernet driver from here. Since my internet is not working, as ethernet drivers are ...
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1answer
116 views

Help understanding interfaces in Backtrack

I am fairly new in UNIX and have recently installed backtrack on a VMWare box on my machine and I am trying to use DHCLIENT command but am having trouble in understanding the interfaces. I am ...
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2answers
282 views

What happens when I plug a Ethernet cable?

What happens when I plug in a Ethernet cable? I want to be able to see what's happening on the Level 2/3 (I believe the protocols I'm trying to watch is Ethernet, IP (v4 and v6) and DHCP for IP ...
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0answers
771 views

Why does eth0 only go up sometimes on boot?

I just installed Arch with Archboot. On boot, there's about 50% change of eth0 to go up. If it doesn't I'll have to reboot. What could cause this? If it goes up, dmesg contains: [ 7.9...] IPv6: ...
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0answers
359 views

Wlan0 Static Ip bridge

EDIT: Even taking br0 out, still cannot get a static IP connection. I had the following /etc/network/interfaces configuration and it was working auto lo iface lo inet loopback auto eth0 iface etho ...
0
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0answers
225 views

Set up network interface for automatic connection

I have an ethernet device P2P connected to the NIC in my system. When the remote device is rebooted or changes its IP address, the local network interface goes down and loses its IP address. How can I ...
3
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1answer
907 views

Share Internet Connection from computer to new router

On my linux computer I have an external wlan adapter which is connected wirelessly to internet (an access point). Now I want to connect my linux computer via ethernet cable to a new ddwrt router. This ...