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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Ubuntu: How to get wireless lan and 10/100 running simultaneously?

I am running Ubuntu 10.10 on a Dell Inspiron 6400. I am able to get 10/100 Ethernet card and Wireless Lan working independently. Ethernet -> eth0 Wireless Lan -> eth1. If I restart/reboot my eth0 ...
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Updated Win XP to 7: network adapter driver issue

I updated Windows XP on my old laptop to Windows 7. After installing I tried to open internet connection but Win 7 says that it cannot find network adapter because of a missing driver. I tried to find ...
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494 views

Weird connectivity issue wtih USB Wifi stick

I'm setting up two PCs, and I've been having massive troubles getting a USB wireless dongle working. I have two Sony VAIOs (Windows XP, SP2) that I found second-hand, and since they will be in a ...
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Use-cases for assigning multiple IP addresses to 1 NIC [closed]

What would be some of major use-cases in which you would want to assign multiple IP addresses to your NIC? Knowing of any standard/well-known 'gotchas' associated with each use-case would also be ...
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427 views

How to send to the “loopback interface”?

Does it mean the same as send to localhost ?
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917 views

Disable wireless light?

Is there any way (program, registry key, etc.) that I could disable the little light that turns on whenever WiFi is enabled? I would still like to have WiFi enabled, it's just that I want the light to ...
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2k views

Network card three-pin connector

I've got an Asus NX1101 gigabit network card. It has a white connector with three pins. What is it for?
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2k views

How can I disable internet for a specific interface in Windows 7?

I have two NICs on my machine, one which connects to my network and has my internet connection. The other connects to a buddy next doors network with his internet connection. I don't want Windows ...
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334 views

My network adapters can't detect 802.11a radio wifi

I have two adapters, one has the Atheros AR9002WB-1NG and the other is a LAN USB Adapter #4. For some reason or the other they both can't detect 802.11a connections. Can someone explain this to me?
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Realtek NIC running at 100Mb/s rather than 1000Mb/s

My Realtek NIC in my Windows Home Server (essentially w2k3) box refuses to run at 1000Mb/s even if I change the driver settings from Auto Negotion to 1000Mb/s full duplex. I've installed the latest ...
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4answers
4k views

Wireless USB adapter with OS X support? [closed]

I haven't been able to locate any other wireless USB adapters with OS X support. It should rather be able to handle 108 Mbit/s or higher. Any suggestions? Edit: As I'm not a Mac user, I totally ...
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3answers
39 views

Connect a second netowrk powerline adapter to network

I bought a network power line adapter and it works well. The unit I bought came with 2 adapters, one plugs into the router and the other goes to the computer. I wanted to know if I was to purchase ...
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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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1answer
4k views

Generic Ethernet drivers for WINDOWS

Background: I have a custom built box that I like to setup with multi-boot using GRUB2 and having Windows 7 x64, latest Linux Mint x64, and couple other Linux/Unix distros. I've had this setup ...
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4answers
4k views

Connect VirtualBox to a different internet connection

At the moment, I have my host machine setup to access the internet using the main ethernet connection via a NIC. I have a VM which currently has it's network settings set to NAT, this allows the ...
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1answer
100 views

I don't have eth0 but eth1

How come I don't have eth0 but an eth1 instead? I restart service udev, like below, but my ether card is still eth1, not eth0 % service udev --full-restart * Stopping the hotplug events dispatcher ...
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408 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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170 views

ping using mac addresses or link local ipv6 addresses

I have 4 Virtual Machines (Ubuntu 12.04) running on a host that is also running Ubuntu 12.04. The Virtual Machines are named: switch-vm vm-1 vm-2 vm-3 Below are the network settings on switch-vm: ...
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41 views

Do I have to install drivers on each network card interface when using network teaming?

If I have network teaming enabled on a set of network interface cards/network adapters and I am required to install drivers, is it sufficient to install them on one network card or do I have to ...
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576 views

Multiple Wi-Fi cards and Internet connections on Windows 7

I have two Wi-Fi cards and two separate Internet connections. I connect to the Internet with both of them but one does all of the Internet transactions (and I have not seen any place where I can ...
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7k views

How to configure LAN controller to run at 1Gbps connectivity?

I have a few computers connected through a Gigabit router which show 1Gbps connections. However, one of the computers only shows 100Mbps connectivity even though it is capable of 1Gbps. I am not ...
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960 views

Ubuntu network card problem

Several days ago, I installed Ubuntu 9.10 onto my Acer Aspire 3100 laptop, running it alongside Widows Vista as a dual-bootable system. Creation of the Ubuntu boot CD went fine, and the installation ...
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3answers
3k views

Atheros AR9485WB-EG wireless adapter on Linux Mint

I have a new ASUS X552C laptop. It is working like a charm, but I ran into a problem when I decided to install Linux Mint. It seems like my Atheros AR9485WB-EG wireless card is not recognized by the ...
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321 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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444 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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997 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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Jumbo Packet vs Transmit Buffers

I want to increase the transfer speed between two network adapters: 1) Atheros AR8152 PCI-E Fast Network Adapter. 2) Marvell Yukon 88E8053 PCI-E Gigabit Ethernet Controller. Marvell has a "Jumbo ...
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854 views

Are USB Ethernet adapter slower than embedded NIC?

I've just bought an usb-lan adapter. it is usb 2.0 and 10/100Mb it connects in full duplex at 100Mb but it is really slow: it goes 10Mb Compared with embedded NIC same file transfert goes ~100Mb Is ...
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Can I select the adapter to bridge separate for every network adapter in VMware?

I have a host computer running Windows7 with a wired network and a wireless network. These are two separate networks with two separate dhcp servers. I created an Ubuntu virtual machine in VMware ...
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what is the difference between a host adapter and network card?

what is the difference between a host adapter and network card? I know that a netword card is the electrical circuits in the computer where you plug your ethernet cable into in order to gain internet ...
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322 views

Software Diagnostics Tool recommendations for Debugging a Windows 8 freeze

I've had my HP Pavillion dv6 laptop since last November - and it has had 8GB RAM and a 256GB Crucial M4 SSD installed since the start. I use it for software development and it's had a Windows 8 RTM ...
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536 views

NIC: Changing Link Speed & Duplex to Full Duplex Is Drastically Slower

I have an old Win Xp box with a 100 PRO/100 VE NIC and connecting to a Win 7 box with gigabit NIC via an ASUS gigabit router and peer to peer. I was getting 76% network utilisation on the XP machine ...
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VMWare Player 5.0 Upgrade - Bridged Networking No Longer Works

I've been using VMWare Player 4 on my Windows 7 PC, running my VMs under a bridged networking configuration without any problem. I settled on bridged networking two reasons... I often use VMs to ...
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Network card shuts down when stressed

I have a network card that functions fine with light use, but quits functioning after heavy use. I replaced it with a brand new one and still have the same issue, also updated drivers. It is a wired ...
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30k views

OpenVPN, install a TAP adapter

When I try to connect to my work VPN using OpenVPN, the connection fails with the message: All TAP-Win32 adapters on this system are currently in use. Many sources suggest to look in Control ...
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449 views

What's involved with installing a JetDirect card for an HP Laserjet 4500?

So I have an opportunity to pick an HP 4500 Laserjet for a pretty good price and am on the fence. The only problem is that it currently only has a parallel connection on it. However, the seller ...
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627 views

Wireless not detecting signals after hibernation, reboot doesn't fix it

The wireless adapter (Broadcom 802.11n Network Adapter) of my Lenovo S10-3 is being detected correctly in the device manager in Windows, but I am unable to detect any wireless signals. This happened ...
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360 views

USB Wireless Network Card, PCMCIA Or Internal For Long Term Usage? [closed]

I want to do some testing on my existing internal NIC to see if it is the source of these problems and for this i need another wireless NIC and of at least mediocre quality because i would need that ...
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497 views

Changing MAC address of network card

From Wikipedia: http://en.wikipedia.org/wiki/Network_card#Purpose Every Ethernet network controller has a unique 48-bit serial number called a MAC address, which is stored in read-only memory. ...
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Connect two Win 7 computers directly using fiber and no switch

I want fast file transfers between Win 7 computers using fiber optics, but I don't want the expense of buying a fiber switch. Can I buy two fiber expansion cards and connect the computers with a ...
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2answers
154 views

Homebrew server NIC choice

I am build a small server out of a desktop motherboard. It will run Ubuntu 10.04.3 with an iSCSI target. I am trying to decide whether to go with 2 Realtek 8169SC Gigabit NICs or with 1 Intel ...
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523 views

Browser: Different settings per NIC

The machine has two NIC's, each connecting to a separate network. Network A is Internet facing and requires a proxy to do so Network B is an Intranet The problem is, if I set the proxy ...
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2answers
93 views

What can I do if I can't find driver's for my computer's NIC

This is driving me bananas, I've burned something like 10 CD's trying to find an EXE or ZIP that will work for my dad's computer [my old one] I'm about ready to give up, is there any sort of generic ...
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2answers
415 views

force connection using USB adapter

I am new to Linux, so even though this is probably a simple problem it remains unsolved after more then 3 hours of googling. I am run running Ubuntu 10.04 LTS on an Acer Aspire 5520G. The laptop has ...
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1answer
801 views

Realtek/Intel NIC transfer speed

I have just purchased a Gigabyte GA-X58A-UD7 motherboard, and it has dual Realtek RTL8111D gigabit LAN ports. I also have an Intel PRO/1000 MT PCI gigabit network card lying around from an old ...
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2answers
443 views

Why is my connection slow?

I have a Dell Precision T5400 with a Broadcom 1Gb onboard NIC. For some strange reason, when I access machines on our local network, the best I can get is around 125KB/s download speed. My laptop ...
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1answer
12k views

How to configure 2nd network card for use in VMWare Workstation?

I am using VMWare Workstation 6.5, connected to my network with a bridged adapter so that the virtual machine OS (Windows XP) has its own IP adress. This just worked out of the box. Now my host ...
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1answer
28 views

adding a nic to a linux system

I've just bought an HP NC360T Dual Port Gigabit Ethernet Adapter PCI-E for use in a linux box. I can't seem to see the device on the system. I've used the lspci command to display a list of items on ...
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1answer
30 views

Read registers on a NIC card on Windows

I have a Realtek Ethernet Controller on my x86 machine running Windows 7. I have the datasheet for the Ethernet controller. I am trying to debug a low-level issue and I need to read certain registers ...
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35 views

Is there an fast open-source portscanner? [closed]

Looking for a fast open-source c# port scanner ? Using handshake layer, pcap. Want some example for studying purposes.