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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Hyper-V core NIC speeds and registry changes
On a Dell PE T610 I have Hyper-V core running, with 2 x Broadcom BCM5709C NetXtreme II GigE installed. I have noticed that copying large files 17GB for example, from a network physical server to the ...
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Two NIC cards with the same metric - Internet traffic going out the wrong one
I have two NIC cards in my computer - one is connected to our corporate network and the Internet, the other is connected to a private LAN through a Linksys WRT54G. Both cards use DHCP.
This was never ...
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The PHY on eth0 keeps restarting. How can I keep it on?
This is probably a superuser.com question, but it isn't online yet.
The PHY on my NIC is blinking on and off ridiculously, and it should always be on. I googled it and found no answers, just ...
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Setting up a VDSL router on OpenBSD & NIC with TCO support
this is my first question and I hope I do everything correct. Thanks for setting up serverfault - such a site was missing in the internet for a long time now.
In the next few weeks I will get my VDSL ...
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What controls the NIC naming convention after fresh Ubuntu 20.04 install?
This is a fresh install Ubuntu server 20.04.04 system. I'm using networkd and netplan to configure networking. I did not do any custom install steps, just loaded the .iso and installed Ubuntu server ...
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ESXi VMs randomly lose network on reboot; only resolution to pull NICs and reassign new NIC driver with static MAC
We have one ESXi server (HP-ESXi-6.0.0 build-2492585) that has multiple VMs on it that have exhibited the following behavior:
When the VM is rebooted it will occasionally just lose all network ...
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NIC teaming on Windows 7
My understanding is that NIC teaming isn't natively supported on Windows 7 OS?!
Is there a way to do it using some third-party tool?
What are your experiences?
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After making my VM highly available I get "Could not find Ethernet switch" error when trying to live migrate
I normally create new VMs from the Failover Cluster Manager GUI. But this time around I went a different route because I had to (due to time constraints and available resources at the time). For ...
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Windows Dual NIC - Will this setup cause an ip address conflict?
My company has three subnets total of which two subnets have the same set of ip addresses... 192.168.0.x. This has not been an issue before but we are going to establish a VPN connection between two ...
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Storage Network Stops Transmitting Traffic
I have a troublesome issue.
I have a 10Gb storage network serving a VMWare vSphere 5.1 environment.
Storage: TrueNAS(NFS) with a Chelseio T320 10Gb Nic
Storage: Dell PowerVault MD3600i(iSCSI)
...
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Need to configure 2008 server with 2 NICs on different subnets
I am working on an application that requires a 2008 server to have 2 NICs for security purposes.
NIC 1 will be connected to the customer's enterprise network with a static IP and is routable. It ...
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Email flow issues when additional NICs are activated in Exchange 2007
I am currently working in an Exchange 2007 Environment which is quite basic - an EdgeSync Server and an CASHUB. Both of which have two NICS, ostensibly for an internal and external interface in the ...
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2008 Server 2 NICS Unable to maintain routing
I have two Windows 2008 Servers. One is a domain controller and the other is a member of the domain.
The domain member machine has 2 NICs, one for internet facing traffic and the other for private ...
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Disable (or switch off) a network interface on windows but keep the "plug and play"
I'm looking for a good workaround to do this on Windows 7 and Windows XP:
Disable or make ineffective the network interface (ETH, WIFI, any NIC).
If the user connect his ETH cable, the network ...
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Sharing internet connection on Windows XP with 2 NIC's and seperate networks
This is the basic setup. The goal is to get Host 2 to use Host 1's second NIC to connect to the internet without using any special routing software or anything on Host 1.
What I can do: Configure ...
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setting up 2 subnets, Windows Clients (30 nodes), Linux Server, Samba, FOG
Its my first post on serverfault and my first time to setup this kind of network, so my apologies in advance if it is not well formed.
I'm planning a small (education center) network that has about ...
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How To Upgrade Network Driver To BNX2i
we have a server with a Broadcom NetExtreme II card which supports iSCSI offloading. According to the dell documentation, we need to be running the bnx2i driver to use the iSCSI offloading engine.
We ...
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Increase network bandwidth between 2 servers
Is it possible to increase the network bandwidth between 2 servers on Windows Server 2008 and Windows 7 ?
For example : Use 2 Gigabit NICs on each computer to have 2 Gigabits/sec between 2 machines ?
...
user59333
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How should I set up multiple NICs for Hyper-V?
I have a PowerEdge server that has 1 management NIC and 4 other NICs. I have the management NIC set up so that I can access iDRAC and it works great. Now I'd like to set up Windows 2008 R2 Hyper-V. ...
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Hyper-v Core backup so slow across LAN
Our T610 server has 2 Gb NICs and a guest VHD thats 28GB in size. When I copied that VHD from our file server [Server 2003] to the local drive on hyper_v core it took over 3 hours.
This concerns me ...
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Windows XP mode: externally configure NIC
We're internally running a lot of stuff on windows xp mode (While upgrading fully to Windows 7), and it is very often required for the people running the xp mode to change their NIC settings to access ...
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Macs don't connect to wifi access point but PCs will
So, as a side project I'm going to try and figure out why the wifi APs in my building exhibit the following behavior:
- They typically allow all types of computers to connect without issues
- ...
Josh
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Windows Server 2008 R2 Virtual Network Setup
Some background: I'm very much new to networking in general, and virtualization in particular. I'm trying to set up a series of VMs as we are transitioning to a thin client setup. I have been ...
jpearl01
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Public traffic to go over 1 NIC and private traffic to use another NIC
Currently we have a Windows XP computer with 2 NICs. We want all traffice destined for private IP addresses to go in/out of NIC (10.1.1.20) and all public traffic to go in/out NIC (173.x.x.x)
Our ...
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Multiple IP addresses on one NIC register twice in DNS server
We've got a build server (Windows Server 2008 SP2, 64-bit) which has one NIC and two IP addresses registered to that NIC (192.168.1.30 and 192.168.1.31). The build server is registering two identical ...
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Loading an eBPF program causes IRQ affinities to be modified - (ixgbe driver)
I am working on an eBPF/XDP application running on a server with Intel 10G X550T NICs, using the ixgbe driver.
I need precise control over how the work is distributed between cores, so I'm disabling ...
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Unable to establish link between Mikrotik router and Mellanox NIC
I am trying to establish a 25 GbE link between Mikrotik CCR2004-1G-12S+2XS router and a server running Windows Server 2022 with Mellanox NIC (MCX512A-ADAT).
For cabling, I tried using the official ...
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Efficient parallel file transfer between two hosts using mutliple 10GbE NIC ports
I need to regularly transfer large amounts (several TBs) of video files between two servers on a 10G network. I want to decrease the overall time it takes to finish the job.
I am running CentOS7. I ...
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Communicating with identical IP addresses on many distinct networks [closed]
I would like to be able to connect to a small group of networked hardware (let's call it a Rack) via a switch and a NIC in a Windows 10 Pro computer. The system hardware has fixed 192.168.0.x ...
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Why does my Realtek gigabit NIC not advertise 1000Mbit mode?
I currently have a NAS (openmediavault based on debian) with a Realtek gigabit NIC (ASRock Q1900-ITX on-board LAN), but it won't advertise that it is gigabit-capable. ethtool eth0 gives the following ...
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when should I raise an alarm if I see dropped packets ( packet_in or packet_out)
I am trying to create a simple anomaly alarm detection by looking at the KPI of my Linux servers. I was wondering when should I flag an alarm if see dropped packets ( both packet_in and/or packet_out)....
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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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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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Cannot set 1G speed on 10G nic using ethtool
I have a linux server with 10G fibre nics:
xyz@xyz48:~$ sudo ethtool p1p1
Settings for p1p1:
Supported ports: [ FIBRE ]
Supported link modes: 10000baseT/Full
Supported pause frame use: ...
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vagrant fails to bring up additional adapter for centos vm using virtual box provider
this is in continuation of the question asked here about host only adapter on dhcp
I upgraded to vagrant 1.6.3 and the updated Vagrantfile to following setting for multiple adapters
# add additional ...
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FreeBSD Nic Setup - Dual NICs with lagg
I have a server running FreeBSD 9.0. It has two NICs using the igb network drivers. I was given a range of IPs, for example's sake I'm just going to make up some IP addresses, so let's say 192.168.0....
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Cannot browse HTTP to a load balanced VIP from w2k8 boxes, but can get to it from w2k3
I have a strange problem and am looking for suggestions.
The environment:
several VLANs on the same switch, that all talk to each other via the ASA using hairpin routing:
VLAN 500 - Windows 2003 ...
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Disable PCIe device on Dell R610
I have a Dell PowerEdge R610 system sitting in a co-location facility. It has four onboard NICs and a 2-port PCIe NIC in one of the slots. I'm usually working with HP servers, so I have the ability to ...
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Bonding NICs with Procurve 1400-24G switch
I was looking to bond two or three NICs together to increase throughput. Now, this should be straight forward if done computer to computer, but since there are 3 computers involved which require ...
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2 Nics, 2 Gateways. How to choose which NIC to use for web surfing
I have 2 NICs in my machine, and we have 2 internets services on our LAN; one is a DSL one is a partial T-1.
I have one NIC with the DSL as the gateway, and the other NIC has the T-1 as the gateway. ...
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Why have a server with 6 NICs [closed]
So we are using a pretty powerful server at work, a Dell PowerEdge R710 Server, which comes with 6 1GB NICs. I've searched and thought a lot but am hard pressed as to why one would want a server with ...
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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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Reading NIC bandwidth usage instantly
I want to create a script that runs on a linux server, that script should read bandwidth usage of NICs installed on other servers and then store them in memcached.
So I need a command that reads ...
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How to properly setup a server "teaming" across multiple NIC's in windows server 2008?
Ok, I have read about installing multiple nic's in a server and expanding the throughput capabilities through load balancing. I might be using this term incorrectly. Now, depending on the application, ...
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How can you tell which NICs offload processing from the CPU?
Cheap NICs like Realtek utilize the CPU to do some work. Better NICs like the Intel Pro line perform more work on the NIC leaving the CPU with less to do.
When purchasing NICs, how can you tell if ...
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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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Dual Port Server Nic Question
I'm speccing out a new server that will need to have two physical network connections. I'm looking at one of these:
http://h10010.www1.hp.com/wwpc/us/en/sm/WF06a/15351-15351-3328412-241644-3328421-...
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Communicating via separate network cards
Assume you have a web server with two network cards (and their associated ports), let's call them A and B. The idea is to connect one port (A) to the internet and the other (B) to some isolated ...
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Multiple network cards, controlling where my traffic goes
This is an Ubuntu 12.04 server install. I have multiple network cards, eth0 and eth1 lets call them. eth0 is connected to the internet, and all of my traffic goes through it, until eth1 gets plugged ...
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New server, Old nic
I have a relatively new server that I need to add an interface to. Sitting right next to me I happen to have an old 3Com 905b TX. This card came out of an old Windows 98 machine. It hails from back ...
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