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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.

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Do I need 2 NIC cards to forward public IP to private IP?

To use NAT do I need 2 nic cards? I want to use my server for my own business (I don't require VPN) and simply need to forward my public IP to the private IP so that websites show up as www.upnorthsound.co.uk and not the private IP of the…
user173421
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How does the host OS process frames/packets meant for VMs?

I've been reading up on how VMs communicate on the internet using vNICs, vSwitches etc. Would like to confirm a few things For outbound traffic, the pNIC can be overridden send frames/packets with ip/MAC of the VM instead of host ip and hardcoded…
Abhinav Vishak
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Network Card with builtin VPN functionality?

I am looking for a PCI or PCI Express based Network card with builtin VPN possibilities or a network card which allows to flash its firmware vyatta, ipcop , routeros or any similar os. The idea is to allow remote support of a server system (access…
grub
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Is Teaming with one Network Card possible?

If my Network Card has 4 ports can I do teaming (LBFO) ? Or I need to have two Network Cards ?
Alexis Chaupin
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Server for virtualization

HP Proliant DL380 G5 I have looked at this server for some good virtualization. I can get the server for around 450usd 2x xenon (X5355) 2 x 72GB HDD 8GB Ram As my g3 360 and g4 360 and g3 360 are starting to get a bit slow. I will be running exsi…
user146899
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Can a large number of network hardware interrupts cause a machine to be underutilized?

I don't know much about networking sorry. I'm building a client / server where the server streams a lot of data to the client and I'm trying to maximise throughput (through TCP). If I run both client and server I get pretty high throughput. However,…
Clement
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IPv6 NAT information leakage

Edit: Since I was asked to edit this, I'll ask about an awfully specific issue. The question was obviously never about information leakage on OSI layer 7, since that wouldn't be a network issue. I'm going to assume that we have a bad guy sitting in…
f384
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How can NIC's remember the DHCP address past power off?

I have now seen an HP ProLiant DL385 G7 (573088-421) and HP ProLiant DL360p Gen8 both being able to remember the DHCP address for its NIC's even though I had powered off the server, and pulled the power cords. In both cases dhclient -r did do…
Jasmine Lognnes
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Difference between GBIC and SFP

What is the difference between GBIC, SFP, SFP+?
I don't know.
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What is the fastest way to connect two machines for a ping-pong test?

I need to do a latency test between two machines, basically a ping-pong packet test. I wonder what is the fastest connection I can have between those two machines. I imagine my options are: Ethernet through a router, but then my bottleneck will…
chrisapotek
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Dedicating Network Adapters

I am looking for some clear instructions (a blog or something similar) on how one would go about setting up a dual network adapter in such a way so that: One network adapter is used for user traffic. Another network adapter is used for SQL Server…
H A
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2 network cards on new database server

I'm setting up a new database server (Windows 2008 R2) and the server has two GB network card (The server has actually 3 but I will keep one for backup), and I would like to know what is the best setting. The server is connected to a HP ProCurve…
Ennio
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Do laptops / pc's have multiple NIC cards?

I want to know if laptops have ONLY ONE Network Interface card or they have multiple NIC cards for a specific medium? (for example, wi-fi, Ethernet etc.) Can anyone please help me understand this?
CuriousMind
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Any 3 port NIC's made?

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 is our friend,but they don't really ship to…
JasperTecHK
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What is 25gb ethernet good for?

I've come across listings for 25gb NIC cards online, from various companies including Intel, Mellanox, and Broadcom. Can someone explain what these are for? Clearly the bandwidth these cards can support is an order of magnitude higher than what your…
Gautam Goel
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