A Network Interface Card is a computer component which connects to a physical network in order to send and receive data.

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Need a script to add a second IP address to a Windows machine

Does anyone know how to create a .reg registry script that will add a second IP address to a machine that is called 127.0.0.2 ? Here is the "manual" method: Go to the Control Panel > Network ...
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e1000e Reset adapter unexpectedly / Detected Hardware Unit Hang

I have a Dell 1U Server with Intel(R) Xeon(R) CPU L5420 @ 2.50GHz, 8 cores running Ubuntu Server Kernel Version 3.13.0-32-generic on x86_64. It has dual 1000baseT networking cards. I have it set up to ...
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Intel Corporation 82540EP NIC and “rx_missed_errors” at 140Mbps

I have an Intel Corporation 82540EP Gigabit Ethernet Controller which uses module e1000 version 7.3.21-k8-NAPI. While it is a GigE NIC, I receive "rx_missed_errors"(ethtool -S eth0) already in case of ...
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Getting NIC speed from Powershell on Win2008 R2 Server

I am trying to get the NIC speed via Powershell on some of my servers. For my lab server I know there is a 1GB NIC in there. However, when I do this via Powershell I get the below weird number: ...
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Binding multiple IPs to one NIC [closed]

I'm trying to set up an ubuntu 14.04 server to listen on multiple IP addresses. A range has been assigned to the server (X.X.X.146/29) and ip addr show confirms that this is how eth0 has been ...
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5k views

MDT Deployment Issue-Driver not loading (i217-LM on MDT)

I have been testing a replacement imaging system to replace our limited Ghost deployment system for a good portion of the last year. We bought a new batch of machines (HP Workstation Z230) which have ...
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What is the command to flash a NIC link light?

I remember using a command line tool to flash a NIC's link light to identify it. I can't remember for the life of me what it was.
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14 views

Routing traffic coming from specific IP to go through specific gateway

This is my problem. I have a server with 2 nic cards A and B A (10.x.x.1) Default Gateway (10.x.x.254) B (192.x.x.1) Default Gateway (empty) NIC A all outbound traffic goes out through it. NIC B ...
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23 views

How to disable virtual IP on centOS

I have 5 Centos machines and 2 of them have virtual IP enable on it. This is causing problem for some of the application specifically MapR. Here i need to disable virtual IP address. I have a ...
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1answer
38 views

Troubleshooting NIC Logs by NETDEV WATCHDOG

I have a CentOS 6.6 server (Linux 2.6.32-504) running on a brand new Dell PowerEdge R320. Just the other day, I began noticing problems in /var/log/messages related to one of my NICs. Note: this is a ...
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multiple physical interfaces with IPs on the same subnet

I have a linux box with 9 NICs on it, and I want eight of them to have unique addresses on the same subnet, e.g.: ifconfig eth1 192.168.123.1 netmask 255.255.0.0 ifconfig eth2 192.168.123.2 netmask ...
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54 views

Is it possible to have a link between a 10GbE NIC and 1GbE Switch with a SFP+ DAC?

I've just installed an Intel 82599 based NIC with 2 SFP+ ports in my server. Right now I have a PowerConnect 2824 switch, which has 2 1Gb SFP ports. I tried linking them with a 10Gb SFP+ DAC (a ...
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1answer
44 views

TP-Link TG-3468 on an IBM x3850 M2

I got a networks card from TP-Link. It is the TG-3468. I wanna place it into my IBM server x3850 M2. It has PCIe x8 slots. The slot is a little bit longer than the lenght of the card, but it fits. ...
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48 views

Choosing gateway based on Source IP in Windows

So here is the scenario I have one NIC configured with two ips and two gateways for two diff networks. Consider the gateway/subnet are 192.168.0.1/24 and 192.168.1.1/24. If connection is initiated ...
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61 views

Intel S5520HC - onboard NICs U/S, but also an addon QP card?

All We have a server with an Intel S5520HC motherboard, two E5620 processors, 6x2GB memory modules and four 1TB hard drives in RAID 10 connected directly to the board. I'm trying to be as detailed ...
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Finding NIC firmware version

I need to find out the firmware version of the NIC(s) on on IBM Windows Server 2008 using CMD, Powershell or by any other means.I also should note that I can't reboot the server to go to bios or use ...
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55 views

Multiple 3G USB dongle conflict

I have 5 Huawei E303 hilink USB 3G dongles attached to my PC. Only the first dongle that is attached is able to get Internet access, all subsequent dongles then attached complain: 'unidentified ...
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34 views

CentOS, 4 NICs: two teams redandant, each team has 2 NICs, is it possible?

We have one CentOS7 or RedHat 7 "BIG" HP Proliant DL360 Gen 9 server with 4 NICs, two external switches Switch 1 and Switch 2 and many "small" servers. Those small servers have two NICs: those NICs ...
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35 views

Any 3 port NIC's made? [closed]

basically want a 3 ethernet port NIC. is there really none of these available? cause i'm working on a project that only requires 3 ports,and the 4 port ones are ridiculously expensive. Yes,i know ebay ...
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106 views

Problems with Supermicro X10DRi-T NICs

I've got a workstation with Supermicro X10DRi-T mainboard. It has three Ethernet ports. One of them (IPMI LAN) is dedicated to IPMI. The other two, LAN1 and LAN2 are general-purpose. This question ...
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60 views

windows 2012 r2 nic teaming does not aggregate bandwidth

2 X Dell R730 boxes each with Dual 10G broadcom NIC. NetGear 10G 10BaseT switch. LACP set in switch. Boxes config with NIC Teaming (switch dependent, dynamic, all active). - when I copy a file I get a ...
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Multiple Nics, multiple default gateways on a Server 2012R2 cluster

This is really just a question about best practices as there seems to be a little confusion. The physical hosts of our Hyper-V cluster have 4 Nic interfaces relating to the 4 subnets. Now, when ...
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Assigning 2 IPv4 blocks to one interface

I have been assigned these 2 blocks by my provider Block: x.x.x.184/29 Usable range: x.x.x.186 - x.x.x.190 Gateway: x.x.x.185 Subnet: 255.255.255.248 And Block: x.x.x.192/29 Usable range: ...
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How many NIC's in relation to processor cores? [closed]

I have server with four cores procesor (non HT) and two NIC's onboard. Is it reasonable to add four additional NIC's (ie. Intel PRO/1000PT) or only two new NIC's will be enough (ie. Intel PCI-E ...
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what are the memory impacts of increasing a NIC's ring buffer?

What impact (if any) does NIC ring buffer tuning (e.g. via ethtool -G eth0 …) have on system memory utilization? For example, does increasing the ring buffer consume more RAM? And if so, how much? Or ...
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29 views

QEMU/KVM nic properties

1) What's the use of the addr value when specifying a new network interface on QEMU/KVM ? Example: qemu -hda deb.img -net nic,addr=192.168.1.10 2) Is there a way to specify directly the IP address ...
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74 views

Route Between Two Virtual Interfaces on one NIC Linux

I have an Ubuntu machine that is my firewall The Machine has 2 NIC Cards. eth0 and eth1. eth1 is connected to a modem that gives it an IP of 10.10.1.X eth1 is required to provide DHCP on 192.168.2.X ...
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627 views

Supermicro NICs gone after BIOS update

Just updated the BIOS of two Supermicro 1022G-URFs to R3.5. They've both the mainboard H8DGU-F with two onboard Intel 82576 NICs. One of the two Supermicros doesn't have any visible NICs at all after ...
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IP address change eventlog in Windows System

Domain Controller - Windows Server 2008 R2 Standard Client OS - Windows 7 prof. Recently on one of my Windows Server 2008 R2, the ip address has been changed. So i need to know how it has been ...
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Windows Server 2012 NIC Teaming vs. MPIO [duplicate]

I've got a server with Windows Server 2012 R2 installed on it. 1 NIC on the server is used for management purposes and I've teamed the 3 other NICs which communicate with our SAN to carry out VM ...
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NIC Team, Trunking, WS2012/HP2920

I have another problem. I made a NIC Team on Windows Server 2012 R2 containing 2 Interfaces. It's created as LACP. Also, on Switch HP2920 I have two ports as a trunk (trk1), and also as LACP. When I ...
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Where to download the latest 2.4.x Linux kernel while kernel.org is down? [closed]

I need to run the pre-paleolithic (10 years old!) SuSE 7.3 under VirtualBox. (Don't ask. I just do, ok?) I managed to successfully install it. It boots. It recognized the virtual NIC (pcnet32 module) ...
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CentOS 6, 2 NICs, 1 gateway, 1 NIC doesn't work right

I have a CentOS 6 install that had 1 NIC, eth0, working fine I added another NIC, eth1. Both NICs are on the same switch, and same LAN. I copied ifcfg-eth0 to ifcfg-eth1, and then simply changed ...
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121 views

How do I troubleshoot slow NIC on R610 Dell?

I recently set up 2 new R610 servers that I purchased. Summary: Both servers 100% same hardware Both installed with Centos 6.7 64bit Tested multiple switch ports, same slowness issue. Both same full ...
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RSS hash tuning for mellanox NICs on windows

I found this document that mentions about changing the RSS hash algorithm for small number of connections. The default RSS hash calculated by the adapter is a Toeplitz function. On some ...
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How can force mailslot to broadcast traffics on all network interfaces of the system?

I have two PCs running on win7 and each one is equipped with two network adapters. Both system can see each other shares on both NICs. I also have written a simple client-server mailslot. Client is ...
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QNAP TS-EC1279U with X520-DA2 (10GBe) Loosing NIC conneciton after workstation reboot

=== Configuration=== Your Operating System you are using to access your NAS. Win 7 NAS model: TS-EC1279U-RP Firmware Version/: 4.1.4 Network Setup Single Port Static IP (192.168.1.199) (10GbE) ...
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Setting up 2 NICs, 1 for Internet 1 for Phones

I have FreePBX setup and it has 2 NICs. I've been trying to configure it out so that: eth0 will continue to be the one used for all the office phones and internal calls; and eth1 is the new NIC ...
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1answer
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Server 2008 - 1st NIC's traffic stops when 2nd NIC is plugged in

I have a file server running Windows Server 2008 R2 with 2 NICs in the back. These are their configurations: Connection #1 Local Area Connection 10.1.37.6 255.255.255.0 [No Gateway] Connection #2 ...
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1answer
18 views

Win 2012 - Create new NIC team only shows me virtual NICs, not the physical NICs, why?

I am setting up a new win2012 server with NIC teaming. The server has two physical NICs and I want to create one NIC team in the management OS that uses both NICs. My problem is that when I installed ...
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How can I confirm if my vmxnet driver is installed on my CentOS server?

I have an appliance running CentOS 5.x on VMWare ESX. Quite recently I upgraded it to a newer version of CentOS (still in 5.x) and I noticed that the network card wouldn't initialize. If I run ...
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How can I configure each Windows user to have unique ip address

We have multiple Windows users on a single Windows 2008 R2 server (Standard edition), say 10 users. We would like each user (or program running in that user session) to utilize a separate IP address ...
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Isn't setting “Number of RSS queues” to “1” pointless?

If I understand RSS (Receive Side Scaling) correctly, the src/dst IP+port combos of incoming UDP and TCP packets get hashed, and the packet gets distributed into the available RSS queues using that ...
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Intel igb driver building with checkinstall

How to properly compile the latest Intel igb driver (4.1.2) with checkinstall ? When I am trying to do this I got following error: *checkinstall -D root@debian:~/igb-4.1.2/src# ...
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why 5 rx queues per NIC

On my office server, the output of cat /proc/interrupts displays one tx queue and 5 rx queues. Is this due to NIC hardware capabilities or can you configure multiple receive ring buffers in linux per ...
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Setting Up Usable IPS on Debian

I have a dedicated machine that I am renting with 5 usable IP. The only issue is that only one IP is set up to be public and I'm trying to get the others to be public. I've tried following a few ...
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101 views

Frame error on Primary NIC

I have a 25 Node Cloudera cluster and on all the nodes i am getting critical warning Network frame errors account for 0.95 of incoming network packets over the past 15 minute(s) across all monitored ...
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229 views

Change Xenserver 6.5 MTU

How do I go about change the MTU setting for my management interface in xenserver 6.5? Right now its set to the default 1500 but I want to increase it to 9000. For my setup I have 2 nics on each host ...
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WMI and adding Multiple IP Addresses?

Is it possible, with WMI, to bind IP addresses to a NIC? I have been able to enable a static IP, but I can't seem to find any information on adding additional IPs. this code helped and after I ...
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After copying Xen DomU to another machine, all network config in Windows is lost

Background Our company have about 40 Xen domains installed on single server, installed and managed by suite of proprietary programs. Most of the virtual servers are managed by our customers, and we ...