A network interface controller (also known as a network interface card, network adapter, LAN adapter and by similar terms) is a computer hardware component that connects a computer to a computer network.

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Use a separate NIC for ssh

I have two NICs. I want to use one (eth0) for connecting to Host_A using SSH and the other (eth1) for everything else. I also run a Socks proxy through that SSH connection to Host_A. All traffic ...
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Explorer crash when changing wireless settings

explorer.exe crashes on my PC running Windows 8.1 64bit, when i try to change the wireless settings. Those steps lead to the crash on my system: Open network and sharing center Change adapter ...
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235 views

virtual ip address-how it works and uses of it

My questions are: How having an ip address for an application is useful? Does packets coming to application have virtual ip address as destination ip address or physical ip address? Thanks in ...
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293 views

Asus P8P67 Deluxe mobo: Network adapter off when PC is off; can't wake on LAN

My Asus P8P67 Deluxe (rev 3) motherboard includes an Intel 82579 LAN controller. I have enabled wake-on-LAN with these instructions and it works from sleep, but it does not work when the PC is powered ...
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371 views

Start script on network connect

I am trying to get a GNU/Linux Bash script to run as soon as a network connection is established on my Raspberry Pi. I tried following the instructions on several pages: I have tried adding my script ...
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61 views

Failover NIC with Windows 7 running Apache Server

I have a Apache Server running on a Windows 7 Desktop for a internal website (Intranet). I am trying to figure out how I can make this system as failover safe as possible. One thing I want to do is ...
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2answers
394 views

Is it possible to wake up an ACPI S3 suspended Linux System with an SMB packet?

I want to put my Debian NAS system in supend to RAM mode (ACPI S3) after a decent period of time idling in order to save some power. I thought about putting the NIC in a mode, where it waits for ...
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3answers
753 views

What does ipconfig return in Windows command line?

When I run command "ipconfig" in Windows command line, I am expecting to see my IP address that I have in the LAN I am connected to. But besides that I see many, many entries. Can someone explain ...
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855 views

how to remove obsolete device and network entries? Device manager “uninstall” option has no effect

I am trying to remove a few "obsolete" things which annoy me (because I like to have everything cleen, working and not interferring with each other, fresh, etc..). I tried looking for solutions ...
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2answers
54 views

What are the differences between wireless gaming adapters and straight wireless adapters?

Devices like the Xbox - with only an ethernet port and no built-in wireless - can be connected to wireless networks using a gaming adapter. How does a gaming adapter differ from a regular wireless ...
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2answers
488 views

Desktop network connection keeps dropping but everything else stays connected

I'm running Windows 7. Recently added a new wireless printer (HP Photosmart) and everything was working fine. Then I started losing internet connection on my desktop. Desktop is connected to the ...
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4answers
209 views

Will a bad network card affect a USB network adaptor?

If my network card that is integrated into the motherboard stops working, will this have an effect on a USB wireless network adaptor I plug in? If so, will inserting a new network card fix this? ...
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145 views

NIC still active after shutdown and removal of power supply

The NIC on the motherboard of one of my computers continues to communicate over the wire even after shut down and the removal of the computer's power source! Apparent communication continues after ...
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3k views

Can't get hostednetwork started in Windows 8 x64

OS: Windows 8 x64. Mobo: ASUS P8Z77-V Deluxe. I can't start an Access Point with my computer. I tried everything. I tried netsh wlan commands from cmd (with Admin privileges) and it returns the ...
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310 views

the led of wireless card is always flashing

I just installed archlinux and awesome on my laptop. But I find that the led of wireless card is always flashing in connect status. Is there any way to disable it? NIC: 07:00.0 Network controller: ...
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835 views

Unable to capture wifi traffic with wireshark

Even a few days ago everything was fine, but now simply I can't capture and see tcp, http, etc. wifi traffic but only the traffic for the protocols 802.11 and LLC. I used different wifi spots ...
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3answers
95 views

Is there a way to permanently change the associations of NIC cards on a supermicro server?

There are 4 ports, eth0...eth3, and I want to reassign them so that eth0 is associated with the NIC currently listed as eth2, and eth1 to eth3. Basically swap them. It needs to be permanent and ...
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519 views

Connecting to Bluetooth Personal Area Network Fails

I'm trying to connect to my phone's Bluetooth PAN but nothing happens when I do. I click the button that says "Connect Using" which gives me two options: [Option 1] "Direct Connection" ...
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role of virtual network adapter

Please correct me if I am wrong in saying that network adapters(not considering virtual network adapters) represent a particular interface of a machine having a unique MAC address which can establish ...
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Can't get IP on Windows 7 after extensive troubleshooting

My Windows 7 system is not able to pull an IP from my router's DHCP. This just started a few days ago, and I've done quite a bit of troubleshooting. Here's what I've tried in roughly chronological ...
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395 views

Is it possible to connect a NAS to both WAN and LAN at the same time?

Thinking of upgrading my Synology DS209 NAS to a newer model with dual gigabit ethernet connections. Currently my NAS sits outside my LAN, connected to WAN through one of my modem's four ports, ...
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279 views

PC flooding & crashing network switch only after it's shutdown

I discovered this problem because EVERY SINGLE TIME I left the house my Internet connection would go down and I would not be able to remotely access my netowrk. I installed Windows 8.1 RTM on my ...
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468 views

ethtool available network interface ports

# ethtool eth0 Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Supports ...
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Do I need to replace my NIC or how is there a software based solution?

My connection intermittently fails and it is not because of my home phone or a microwave oven. I have a Realtek RTL8190 802.11n Wireless LAN (Mini-)PCI NIC. My signal strength is excellent. My ...
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102 views

how to route local IP to use NIC and other to use Wifi NIC

Like most, my desktop has Wifi NIC and LAN NIC but today most of the time we only use Wifi ... since most house does not have LAN in every room but I want to create a specific network that does not ...
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324 views

Kernel bypass possible with non-specialised NIC?

Is it possible to perform kernel bypass and have a NIC send data to the user space (where I will write my network stack) with no copying, without having to purchase a specialised Solarflare etc NIC?
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148 views

How do virtual servers interact with the host machine's networks?

I've had this question long ago and still I've been unable to find a correct answer to it. I know it's possible to run several virtual machines. Let's say that I'm running Windows Server 2008 R2 with ...
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1k views

How do I install the Microsoft 6to4 Adapter?

I'm unable to see the 6to4/Teredo adapter anywhere in my Windows 7 installation. In my Device Manager, the only network adapters are my wireless Realtek card, and "TAP-Win32 Adapter OAS" which is for ...
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120 views

How can I *quickly* cycle the a Wifi Network Adapter in Windows 8

Before you close this as a duplicate, please read carefully. In Windows XP, when there was a problem with Wifi, you could right-click on the icon, and the context menu allowed you to disable/enable ...
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277 views

Is it possible to configure a static IP alternative for all adapters using the registry?

I was reading the alternative configuration documentation, and thought I'd try to setup a fallback static IP to simplify my setup: ...
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35 views

Forwaring request from specific NIC in windows 7 client

I have a client in my network which it has 2 NIC, assume eth0 and eth1. A specific scanner with ip address of 192.168.1.1 is connected to eth0 of this client and eth1 is connected to my network. In my ...
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566 views

How to Create WiFi Hotspot with Single Adapter in Windows 7

I know how to create a hotspot when connected to a wired network, but when I am using internet from a WiFi connection, this disconnects the wireless connection the moment I activate the hotspot. In ...
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95 views

Wifi USB Adapters stop working after a couple of months

My Belkin Dual band USB adapter just stopped working. It doesn't work no matter how much I try troubleshooting it. I get an error: USB device not recognised This is third time in last six months ...
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257 views

Why does Ubuntu 12.04 detect only one USB Ethernet adapter?

The problem is that I am connecting three client computers to another central computer through: the one normal Ethernet port connected to one client computer (eth0) two USB to Ethernet adapters ...
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131 views

My laptop's network card is acting very strange

I have a Dell inspiron 1726 laptop. When I try to connect to the Internet via my wired network it drops packets. (I can access the Internet just fine from another computer, so the problem is with the ...
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1answer
2k views

Two wireless NIC on RaspberryPi

I want to be able to use two wireless network adapters on my RaspberryPi running wheezy (Debian).One card is to be used to connect to the network and I want the other to run in the monitor mode. Two ...
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285 views

How to troubleshoot network problems after fresh install of Linux?

Almost every time I install Ubuntu on any laptop there are some problems with connecting to the Internet. After the last installation neither Ethernet nor Wi-Fi is working. What would be the steps to ...
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63 views

Cannot Connect to Windows Server Using a Particular IP

We have a Windows server 2008 running as web server. The Server has two IP's (A and B) added to it. We were able to use both the IP's for remote desktop connections and FTP connections. All of a ...
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93 views

Hyper-V Network Adapter

I have a setup a Hyper-V VM on my server. I have the NIC setup in Hyper-V manager. I also have the my VM settings pointing to my NIC. I can't access the Internet. Here is a picture of my Hyper-V ...
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391 views

What is the real capacity of a network device (ethtool - MiB or MB?)

MiB = MebiByte = 1024*1024 MB = MegaByte = 1000*1000 ethtool returns speed = 1000MB/s ifconfig documentation indicated it returns units of MiB How can I tell from that ...
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76 views

Find processes using a network device

How do I find which processes are using a given network interface at any given moment? I am using Fedora and Ubuntu.
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159 views

Windows XP change the order of IP address in a NIC having multiple ip address

I've a NIC with two IP address. Now how can I change the order of the IP address so that I can bring any one to the top and have precedence over the other IP addresses. I know I can change that from ...
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118 views

Limited connection whenever I connect to a Wi-Fi network outside the company

Whenever I connect my work laptop to a wireless network outside of my company, the connection shows as Limited, and there is no internet access. I have tried several times by disabling/enabling the ...
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388 views

Binding a program to a specific Network Adapter

I am just using my windows7x64 desktop and I want a utility/program that allows me to chose which adapter a program uses for example, running a game through Adapter1 and Streaming videos through ...
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124 views

HP DL380 using HP NC522SFP NIC shows supported link modes: not reported

When using ethtool on this NIC, the supported link modes show "not reported". Any idea why this is the case? Settings for eth0: Supported ports: [ FIBRE ] Supported link modes: Not reported ...
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73 views

Bridge NIC to VM without it being used by Host-machine?

I would like to bridge some network cards so that my virtual machines, running in VMware workstation 9, can connect through them, but not the physical windows computer on which the VM's are running. ...
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What could be causing two different laptops both with Wireless-N adapters to have very different speeds?

My dad recently bought a Dell XPS 14 laptop that had an integrated Intel(R) Centrino(R) Advanced-N 6235 wireless adapter, but it appears to be known to drop connections a lot. He'll suddenly get ...
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34 views

Why can't I seem to keep a reliable connection when utilizing two adapters?

I'm currently in an interesting situation. All of my computers are connected to a wifi network (which has an internet connection). Connecting to that is easy enough. In my room I also have a local ...
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Devices with user re-writable MAC addresses [closed]

I'm looking for routers, cell phones, Internet sticks etc. that have user modifiable MAC addresses. Does anyone know how to spot them?? Also how to write the MAC address.. I've heard Linux is a good ...
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289 views

Specific ethernet cable not working with router only, but works with NIC

I have a DLink DIR-605L, which is a 10/100 Mbps (non-ADSL) router. I am connected to it on a Desktop with a Realtek Network Adapter onboard MSI P45 Platinum. I also have an Asus X54H-SX137D. Both ...