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Questions tagged [nic]

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

321 questions
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Assigning IP from Batch Script

With the below code I am getting an error "Invalid interface LAN: specified". This code works in Win7, however, does NOT working in windows XP. I suspect it has something to do with the "!adapterName!" conflicting within XP. I utilize this script…
T-Diddy
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Netmap/PF_RING and TCP Segmentation Offload and Large Receive Offload

In a custom user space networking stack, backed by Netmap or PF_RING, is the ability to use TCP Segmentation Offload and/or Large Receive Offload lost? The only place I can find anything that mentions NIC offloading w.r.t. Netmap or PF_RING is in…
haste
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Script to change Small RX Buffers in the Advanced Properties of the NIC

We are experiencing packet loss on our SQL 2012 Always On Windows Clusters running in our virtual environment. Through our troubleshooting we have found that we need to increase the Small RX buffers on our SQL 2012 Always On Clusters from the…
user2835493
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Can I select what Ethernet port I use for UDP communication?

I am writing code that will communicate to a network via UDP. From the udp documentation, all I have to do is specify a destination address and port and I can start sending/receiving data. I have two separate Ethernet ports (and potentially a…
Dang Khoa
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How can I distribute load between a NIC rx queues?

I am using a Gigabit quad-port intel i350 NIC with igb driver. The NIC has been installed on a Dell machine with 32 cpu cores and it runs Ubuntu 18.04. Name of the interface I am working with is "eno2" The interface (i.e. eno2) has 8 rx and 8 tx…
user3234347
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Whats the command to find Nic cards serial numbers in linux?

Whats the command to find Nic cards serial numbers in linux ? I tried dmidecode options and lshow may be I missed some thing
allamiro
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renaming docker0 virtual bridge name to something else

I am curious if it is possible to rename "docker0" virtual bridge name to something else. Where does the Docker engine get "docker0" name from?
Victor H.
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How PCIe NIC works and How it communicates with hosts?

I am using intel i210 1G NIC card with my intel i7 PC, I want to know how this NIC communicate with the host without configuring anything out of the box. What NIC exports as a PCIe device to host, How this information is used by the host pci and…
Jagdish
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Using Powershell to remove non present network adapters

I'm trying to automate via PowerShell a number of time consuming tasks that I have to preform to make a new VM template, one of which is removing all of the NICs from the VM and cleaning up the Device Manager of non present devices. After removing…
Hive
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Is there any way of an app in Linux have access to 2 network cards?

My app needs to access two network cards. One to receive data (eth0) and another to send data (3G modem). Normally, the kernel force the app to work with only one card at a time. Is there any thing that I can do to make it run? Thank you.
Fernando Pinheiro
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DMA over PCIe to other device

I am trying to access the DMA address in a NIC directly from another PCIe device in Linux. Specifically, I am trying to read that from an NVIDIA GPU to bypass the CPU all together. I have researched for zero-copy networking and DMA to userspace…
jrk0414
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Receiving udp packet on designated network card c#

I have 3 different network cards each with their individual responsibility. Two of the cards are receiving packets from a similar device (plugged directly into each individual network card) which sends data on the same port. I need to save the…
jsmith
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How to get nic card name

Anybody knows how to get nic card name when I do ipconfig/all I can get this Ethernet adapter XC99HT: Connection-specific DNS Suffix . : xx.xx.com Description . . . . . . . . . . . : HP NC382i DP Multifunction Gigabit Server Adapter …
John Ryann
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On MAC OS X: how to register a callback to detect physical link UP/Down event?

I'm new to mac os x. I like to have a thread to detect the physical NIC card link up/down event, not the ip network reachable to the outside. The old method I got is to using select/timer to do the polling the interface flags via ioctl... Anyone has…
user1446998
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In the container the script need to add a route but its failing with error :ip: RTNETLINK answers: Operation not permitted

The script has to add the route in the container , but the route add command is failing with below error . ip: RTNETLINK answers: Operation not permitted The above command run as a non-root user bash-5.1$ /sbin/ip route add 9.0.0.0/8 via…
gopinath
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