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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How do you create a new network eth?

I have a machine that has eth0 and eth1, and now I want to create an eth2 and assign it some IP address. What's the command for doing this?
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Not enough system resources to install device

Somehow I keep getting a Not enough resources to install device error whenever I try to install the Hamachi network adapter, and I tried installing other tunneling services but their network adapters ...
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358 views

Can't Bridge Windows 8 Ethernet and Wireless Adapter

I'm trying to bridge my Windows 8 laptop's wired and wireless adapters so I can get internet on an older computer (not that old it's running Windows 7 Ultimate). I did this before a while back but now ...
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41 views

How to use Two NIC Parallaly in Linux Centos 6

I have System with two NIC. I have to Applications & I want to use both NIC at same time(Parallel). Problem is that both Lan card not active at same time. If I disaled eth0 than eth1 is works. ...
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17 views

How to overtake the limit of NICs in virtualization softs?

I want to connect unlimited number of NIC to a mikrotik virtual machine but all virtualization softwares has limit to the number of NICs so, is there a soft that doesn't have limit? if there ...
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28 views

How to get 300Mpbs link speed on 802.11n [duplicate]

I know that "link speed", is not the same as actual throughput, but shouldn't 1x 802.11n channel (20Mhz) at "Excellent" 100% signal strength connect at 150Mpbs link speed? I was configuring my Asus ...
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236 views

10 Gb NIC autoneg off?

I have fancy mellanox 10Gb NIC but somehow I can see frameerrors whenever I am stressing the hadoop cluster. Our network guy told me the switch has been hard coded as full duplex and autonegotiate, ...
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67 views

Download speed and ping suffers during PC to PC file copy

Why does the ping and internet download speed suffer on PC#1 when files copied from PC#1 to PC#2? During file copy, my ping goes from 20ms to 600ms+, Download speed goes from 1.8MB/S to 250 KB/S give ...
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54 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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190 views

how to create multiple virtual NIC which each of them can take IP from DHCP when only single physical NIC is available

There are several virtual machine tools that can create multiple NIC for their guest OS. thought almost all of them let the virtual NIC of the guest OS to connect the physical NIC, I haven't seen any ...
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49 views

Balancing Two NICs

I play a lot of online games, and having a constant, uninterrupted, internet connection is crucial. My idea: Connect both NICs in the machine to the same router. My question: Will this ...
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2answers
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Browsing website hosted in the virtual machine from host machine's browser

I have installed Oracle VM Box and created a Virtual machine. Now I have hosted(in IIS) a website in the virtual machine. I want this website to be browsed in the host machine's browser. Can anybody ...
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158 views

Can the MAC address of the USB stick broadband connection be traced together with the IP address?

Can the MAC address of the USB stick broadband connection be traced together with the IP address? Also, the mac address of the broadband stick used, computer or network card inside the laptop, etc.?
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918 views

Slow/restricted internet speed on Ubuntu 14 (driver/hardare issue?)?

I recently built my own desktop and I have noticed that it consistently gets ~ .8 mbps download speed when on the ethernet and slightly better when using wifi. I have run several tests that can ...
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1answer
185 views

Onboard audio and LAN not working

Yesterday, I cleaned up my pc and both onboard realtek network adapter and realtek audio adapter are stopped working. (I've removed the nvidia geforce 8400gs graphic card and using onboard graphic ...
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1answer
775 views

Unable to access localhost & Internet using one adapter in CentOs

I have the below dev. environment. Hardware:- Windows 7, 32bit, HP Laptop. Software:- CentOs 6.5 running on VirtualBox 4.3.10. In a nutshell The problem is that I can't access the internet and ...
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75 views

Linksys AE1200 stops detecting hotspots

I have a Linksys E1200 router and Linksys AE1200 USB adapter, and am running Windows 7 x64. Periodically my connection drops and I have to either use the Windows 7 troubleshooter, or unplug/replug ...
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1answer
255 views

How to make two loopback adapters talk each other?

I have to test some java network application. Each client-app is identified by his IP. So the simpliest way to test it is to run some machines or VMs... But each instance of this application can be ...
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Windows 8 creating 'ghosts' VPN connections

I have a paid VPN service (StrongVPN), and as I live in university halls I have to connect to the internet through the university's VPN and then connect to StrongVPN. This usually works fine, but ...
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1answer
2k views

How do I write a generic udev rule to assign my network's interface name?

I am trying to write a "generic" udev rule to assign an interface name to my NIC card. For a particular application i require the ability to boot a headless server where the NIC can be changed at any ...
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1answer
625 views

network connection suddenly disconnected and disabled during large file transfer over the network

I am currently using windows 8.1 64 bit on my laptop. I have a working network setup and I can start to transfer some large (20+GB) files. However after a few minutes the network connection ...
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1answer
80 views

CIDR < 5 not allowed

Problem Two NICs have been connected using an ethernet cable. The ethernet adapters have been configured as follows: NIC I IP: 8.0.0.1 Subnet mask: 248.0.0.0 NIC II IP: 8.0.0.2 Subnet mask: ...
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290 views

How can I tell if my wired ethernet connection is using 802.1X authentication on Windows 7?

From a command prompt (or a script) I'd like to be able to query the wired interface to determine if it has succesfully established an 802.1X connection, or if it has fallen back to unauthenticated ...
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40 views

Are the network interface card same in all cisco devices

I have old cisco 2600 routers but they dont have any network interface card My friend has cisco pix firewall which has network card attached with 4 ports so can i pull the network card from cisco ...
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878 views

Trouble setting up more than 4 network adapters in VirtualBox (XP Guest)

I've been trying to setup the 8 network adapters that VirtualBox is supposed to support, through the command line. I need them as bridged networks (because I use them to forward ports from a server ...
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124 views

This device cannot start(Code 10) when installing a new NIC

So I've recently bought a new Intellinet Fast Ethernet PCI Network Card, and I can't get it to work. I've tried uninstalling the previous ethernet card drivers and reinstalling the new ones, but it ...
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1answer
66 views

Hardware specifications for WOL (Wake On Lan)

I am planning to buy a computer, which I would like to start using Wake-On-Lan from outside the LAN. I was looking on the internet and there is lot of information to be confused. 1) What are the ...
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578 views

how to up/down remote NIC card or PORT using ifconfig or any other command?

please tell, how to remotely up and down the port using ifconfig unix command? $ ifconfig eth0 down $ ifconfig eth0 up where eth0 is my nic card interface!
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106 views

What type of cable do I need to connect to this storage box

I have this Hitachi Storage box (Hitachi DF600-RKAJAT Hard Drive Array): It has fiber drives, and I have a Fiber channel card like this: How can I join them?
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391 views

Cannot visit some pages in browser

I have just installed my new network adapter for wireless connectivity. I am using TP-LINK TL-WN727N. I installed the drivers from the manufacturers website to get the latest version. The installation ...
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1answer
6k views

Is the reason for weak wireless signal on new laptop the wireless card itself or the antennas?

I just bought a new laptop ASUS N550JV. I wanted to test the wifi receivers of my two laptops (the old and the new), so I put them together and scanned for the neighboring wireless connections. My old ...
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1answer
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Tunnel adapters on ipconfig?

Hello I recently noticed unusual information in my IPCONFIG. Usually I only see Ethernet adapter Local Area Connection, but now I see Tunnel adapter isatap... and Tunnel adapter Teredo... I was ...
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767 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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1answer
144 views

Several hardware components either work or not after booting

I have a desktop computer which I put together myself and in the last weeks I discovered a strange behavior. The same issue refers to three components independently. The onboard network controller, ...
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VirtualBox network adapter blocking samba share

My host is Windows 8.1, my server is a Raspberry Pi (irrelevant). My server is giving all nodes on LAN a samba share, however my desktop has VirtualBox installed. I am unable to access my samba share ...
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1answer
187 views

DNS server cannot get DNSSEC information

I did the netalyzr test which checks some ports and network configs. The result was strange. It contained a problem with DNSSEC: Only some DNS root server instances returned proper DNSSEC ...
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Can't disinstall Intel(®) Centrino(®) Wireless-N 100

I need to disinstall Intel(®) Centrino(®) Wireless-N 130, but when I try to disinstall it, nothing appens: ComputerManagement -> Device Manager -> Network Adapters -> Right-Click on Centrino -> ...
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1answer
49 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.
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1answer
256 views

Bind incoming packets to 1 interface and outgoing packets to 2nd interface?

I am have a Linux machine with 2 network interface cards, I need to use one for incoming packets, other for outgoing packets.
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Does a VirtualBox/CentOs need two adapters to work properly ?

I have a Windows 7, 32bit, HP Laptop. I have CentOs 6.5 running on VirtualBox 4.3.10. Here is my eth0 config. Code: #vi /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 ...
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2answers
918 views

How to disconnect/connect ADSL modem connection to ISP by command? (Windows 7 SP1 x64)

I want to write that command in a .bat file and run it by windows scheduler at certain times of night and morning. (for example: open connection at 23:00 and close it again next day at 9:00 ...
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303 views

How to use netperf on specific NIC port?

I have two servers, SERVER and CLIENT and each server has its own onboard 1 GbE ports, and its own NIC with a 10 GbE port. SERVER and CLIENT are interconnected on both a 1 GbE switch (administrative ...
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931 views

ethernet interfaces are sometimes renamed to 'renameX' on startup

I've installed a recent daily build of Ubuntu Trusty on several HP dl380e 2U servers. These servers have 4 x 1Gb onboard NICs. In addition, I've installed a PCIe 2 port 10Gb NIC in each server. The ...
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2answers
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How can I diagnose suspected NIC issues?

Over the past few days my ethernet-wired internet connection has started acting up. Here are some of the issues I've encountered: Websites are intermittently slow to load. Large downloads routinely ...
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3answers
583 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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1answer
172 views

Laptop Wireless Adapter Periodically Vanishes from Computer Manager

I have a HP dv9000 laptop that has begun exhibiting some strange behavior. Every few hard boots, the wireless network adapter disappears from the configuration - it doesn't show up in Computer Manager ...
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478 views

Using DHCP to get multiple IP addresses on single NIC on RedHat

I am trying to obtain multiple IP addresses using the ISC dhclient supplied with Red Hat Enterprise Linux 5 in order to provide the IPs to multiple applications, which will run on separate virtual ...
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Network adapter settings via cmd

How to open setting of the specific network adapter via commandline in Windows 7 Enterprise? I'm under domain user but also have access to local administator user. Under domain user I have no rights ...
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1answer
9k views

How to Tell If NIC supports Gigabit Ethernet

How do I know if my network card is capable of gigabit speeds under Windows 7?
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88 views

WindowsCE device with single NIC - Two IP address ranges

People, I have got a question about a windows CE device which has a single NIC (and no possibility to extend the device with a second NIC). This device is configured to use a fixed address CE ...