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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What's causing the delay in my network adapter binding to the network?
I have a server that takes several minutes for the NIC to bind itself to the network upon startup (it has a statically-configured IP). This causes the WINS and Intersite Messaging services (and ...
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106 views
Server 2008 on VMware vSphere 5.1 - nic takes 20-25 mins to connect to the network
I have VM with Server 2008 R2 on it that I just recently installed Exchange 2010 on. It has been working 100% till today. This morning I installed ESET (antivirus) on the machine and then this ...
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2answers
59 views
VMWare NIC's on Virtual Machines
I'm running on esxi(which has 2 physical NIC intern -extern) 2 Ubuntu 12.04VM's each connected to internal NIC. How could I bridge theme to have internet on both of theme without to use for each one ...
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59 views
I need file upload to networkless OS with IPMI
Using an IPMI-mounted iso file, I've installed a simple Ubuntu remote server (no X, no Java, etc). However, the kernel has no driver for the NIC. So, after booting it, I am stuck. I've compiled the ...
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2answers
82 views
Impact of Traffic through the first NIC on the second NIC
I have two NICs on a RHEL 6 server. They are both set at 1GB/sec full duplex. The first NIC has lots of small (< 100 byte) TCP socket writes. The second NIC is used to receive a 50 MB/sec TCP input ...
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103 views
networking with one NIC and access to internet and virtual machines
I have installed opennebula and I have followed this tutorial.
Unfortunately I cannot ssh to the virtual machines that appear to be in a running state and already have an IP.
The problem might be that ...
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1answer
162 views
can't connect 2 subnets through RRAS 2008 r2
I'm working on a project for a networking class. In VMWare Workstation, I have to set up a 2008 r2 server with DHCP reservations for 2 clients on separate subnets and have them ping each other.
Here ...
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1answer
92 views
I couldn't get 2 NICs working together on Ubuntu 10.04
I've got an Ubuntu 10.04 server with this configuration:
eth0: 192.168.10.XXX mask 255.255.255.0 gw 192.168.10.254
eth1: 192.168.0.XXX mask 255.255.255.0 gw 192.168.0.3
eth0 is used for incoming and ...
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1answer
198 views
Ubuntu Only Utilizes One Link in 802.3ad
I am currently using an Intel PRO/1000 PT LP Quad Port Server NIC with Ubuntu 12.04 LTS Server 64 Bit. I installed Gnome so I have a GUI.
I downloaded bmon 2.0.1 to monitor the network, and right now ...
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1answer
102 views
Mirror traffic from x network card to VMware player
I have 2 Network cards and I am trying to monitor traffic going through one of them (the internet facing one), so that I can see what sites are visited the most and how much data is being used.
I'v ...
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1answer
409 views
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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48 views
Added a new NIC, can't reach any devices off the interface (ubuntu)
I was wondering if anyone could help me narrow this problem
I have a gateway running Ubuntu server 10.04 (LTS) and I have added a new NIC to it which is a Intel PRO 1000PT GbE, bringing the ...
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1answer
88 views
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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1answer
52 views
Installing ESXi/ Hyper-V using NIC supporting iBFT
We can install ESXi to a iSCSI target if we have NIC that supports iBFT. But what I am trying to see is if we can install ESXi by booting off an iSCSI target which is a mounted ISO? How about Hyper-V ...
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1answer
146 views
Assigning two IPs to one NIC in CentOS
I have been following this method described here:
http://linuxwave.blogspot.com/2010/01/setting-virtual-ip-in-centos.html
To assign a virtual IP to one NIC.
Basically I copied ifcfg-eth0 and makde ...
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1answer
113 views
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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156 views
MAC address allocation for channel-bonded interface
I've configured Channel-bonding (on RHEL/CentOS) with with balance-alb (mode=6) option:
BONDING_OPTS="mode=balance-alb miimon=100 updelay=200 downdelay=200"
which is working fine and according to ...
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1answer
242 views
Remotedesktop to windows 2008 server with 2 nics
Hi I have 2 NICs on a Windows 2008 R2 Server. nic1 with ip address 192.168.2.1 with gatewaty 192.168.2.254 and nic2 with ip address 10.96.6.253 with no gateway. The windows 2008 server is connected to ...
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1answer
224 views
Dual NICs - Dual LANs
Summary: I need to setup a single PC with two NICs - to access a service on LAN 2
NIC 1 - Data network, web access.
Range: 192.168.1.x
Sub: 255.255.255.0
Gateway: 192.168.1.1
NIC 2 - No Web access
...
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1answer
487 views
Sharing IPs between multiple interfaces in VLAN
I've got two servers with 3 interfaces between them all on the same VLAN.
Server 1: 1 NIC, 1 IP block (/29) with subnet 255.255.255.248
Server 2: 2 NICs, 2 IP blocks (one /28 and the other /29) with ...
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1answer
507 views
Multiple IP's using one NIC connectivity problem - Windows
I have a frame relay network that is directly connected to a GPRS network. I also have a ADSL high speed network and recently I have been trying to achieve the following network configuration using ...
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1answer
227 views
Strange Network Card Issue (not showing in device manager)
A friend asked if I could have a look at one of their computers because they kept losing all network traffic (local and internet).
Unfortunately I forgot to write the motherboard name, but it was an ...
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1answer
269 views
Is there a method to send UDP output to one logical NIC such that it gets sent out two physical NICs on different subnets?
I have an application that needs to send UDP multicast data "from" either one or two physical NICs on a single Windows Server 2008 machine. In the two NIC configuration, every datagram needs to be ...
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1answer
106 views
3 Servers, 2 Work Fine, One Has Network Issues
i have 3 servers, all relatively the same hardware/config, etc. I run some data pulls on all 3, and on 2 of them, they have 1 nic, and they work fine. On the other , there are 2 nics, and unless they ...
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204 views
Wifilink 5100 AGN mass update
We are using a Meru enterprise wireless network with 180 APs. Recently, many users connections are dropping frequently. After much troubleshooting, we have determined much of the trouble is due to ...
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94 views
Dell Equallogic SAN - 4000 series to 6000 series connectivity issues
I have a 4000 series in production with two physical NICs and a group IP.
I have a 6000 series in a DR site with four physical NICs and a group IP.
4000 series NIC1: 10.0.12.2
4000 series NIC2: ...
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190 views
Do Gigabit ethernet single-mode fiber network adapters exist?
I am attempting to set up a server with a total of four single-mode fiber ports - two need to be at least 1Gb and two must be 10Gb. I have found a variety of 10Gb single-mode fiber network adapters ...
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107 views
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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351 views
NIC Teaming , Multi-Homed, Active/Passive
I'm fairly new to NIC Teaming.. So I apologize if I’m not making any sense while describing this. I’ve, of course, set up plenty of simple Active/Active NIC teams for our servers without any issues ...
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277 views
Intel PRO/1000 PT LP Jumbo Frames in Ubuntu 12.04 LTS
I am having issues getting jumbo frames enabled in Ubuntu using an Intel PRO/1000 PT LP NIC with two bonded 1Gb lines.
Following the readme that comes with the Linux driver, Ubuntu will not allow me ...
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127 views
Linux FOG Server Memory
I'm a computer tech at my high school, and our technologically-superior head just got fired. He just set up a Linux FOG server before he left, and we have to re-image all the computers in the school ...
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358 views
NLB NIC w/ Static IP permanently “Acquiring Network Address” after adding more IP's to the cluster
We have a 2 node NLB cluster. I recently added more IP's to the cluster range, after which point, the NLB NIC's on both of my nodes ended up in a permanent "acquiring network address" state.
The ...
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395 views
Receive Side Scaling disabled on a NIC Team
OS: Windows 7 Pro
I'm working on a HP Compaq 8000 Elite Convertible Minitower PC and I added another NIC, I configured NIC Teaming (Switch Fault Tolerance mode) and I'm getting a pop-up box that ...
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81 views
Routing requests through a VPC guest
I’m trying to route requests to specific subnets through the XP Mode VPC guest in windows 7. I have a loopback adapter on the host set to 192.168.233.1 and then a second NIC in the VPC attached to ...
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31 views
if there are 2 NIC on the same machine, can a tcp client on one NIC connect to a tcp server on the other NIC?
I use tun/tap to create a tun NIC tun0 with IP 10.10.10.2,
and I have a real NIC eth0 with IP 202.112.34.49
then I run a tcp client which binds its socket to 202.112.34.49 and a tcp server binding ...
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8 views
Specifying empty list for vim-cmd (nicorderpolicy)
I am trying to modify nicorderpolicy-{active/standby} using vim-cmd for ESX5.1. I want the adapters vmnic0 and vmnic1 to be both active; when I add new adapters using CLI, both are passive, so first I ...
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16 views
add VLAN on XenCenter 6.1
I'm installing XenCenter 6.1 on HP Blade server BL460G7, boot from SAN.
I assign ip to static, but i can't find where i can set vlan on Xencenter.
I can't ping anywhere else beside the ip it self. I ...
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76 views
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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37 views
routing internet via WLAN, but still connect to local LAN
I have 5 computers which are normally connected to an LAN, which is connected to internet access. However, rarely the internet provider has a fault and this causes the LAN to lose internet ...
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49 views
linux ethernet card ping problems?
I have a very strange problem with my ethernet card. Here is ethernet card details:
description: Ethernet interface
product: RTL8169 PCI Gigabit Ethernet Controller
vendor: Realtek ...
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0answers
58 views
Xen with high packet loss
I am experiencing a extreme strange problem...
We got a Dell R410 Host with Xen 4.1 installed(Ubuntu 12.10). In this host, we created 6 VMs, one of them is a HVM Windows and others are all PV ...
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92 views
Ubuntu 12.04 LTS NIC Broadcast Multicast (Link is not up)
We have 3 Dell PowerEdge 2950 Servers.
2 x 3.2GHz 5060 Dual Core
16GB RAM
6x146GB
Recently, one of the servers experienced a NIC failure so we decided to replace all the NICs on all three servers ...
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127 views
Route Private IP to Public IP using dual NIC host setup/KVM
I have the following KVM setup:
Host(Centos 6.3) eth0(br0) -> Public IP (156.x.x.x) eth1(br1) -> Private IP (192.168.0.1) ip_forwarding enable
Guest VMs(Centos 6.3) eth0 bridge to br0 -> Private ...
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42 views
server with bonded NIC connected to wireless bridge causes network connectivity issues
I've have a wireless bridge (tew640mb) that connects to a wireless router. If I connect a machine with one NIC into a port on the bridge, the network connection is fine. If I connect a machine (with ...
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176 views
Dual Nic, one keeps dropping
I'm running windows server 2008 r2 on a dell poweredge 2850. I have 2 NICs, one is configured behind a firewall with a dhcp server on the main local LAN and another one has it's own dedicated ...
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70 views
Site stopped working after adding NIC card
My boss made a bit of blunder yesterday, he added a secondary NIC card to the a machine hosting a website so that it could be part of the local network. He also added it to the <blah>.local ...
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72 views
Disabling a NIC on Dell Server using iDRAC 6
I want a NIC to be disabled via a script so as to automate the process of remotely installing a server so that i can PXE boot via one NIC. I could power on the server and do some basic stuff with ...
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150 views
Network shuts down randomly on gentoo (Intel PRO/1000GT NIC)
I have a gentoo router with 3 NICs running on 2.6.35-gentoo-r4 kernel. It seems like one of the NICs (Intel PRO/1000GT) for local LAN (eth1) randomly stops working like once in a few days (there is ...
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28 views
Driver Versions Don't Update
So I have a whitebox server running two Intel 82575EB Gigabit NICs. I tried to update them using the newest drivers (v17.0), but after update (which appears successful) the driver version shown by ...
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299 views
3 NICS on Virtual Box Running Smoothwall & /etc/network/interfaces configuration
I have a question about configuring my '/etc/network/interfaces' The setup would be just like this with one caveat.
The “smoothwall machine” would be in a VirtualBox of smooth wall running on a ...
