Networking :: Creating A Virtual Ethernet Adapter?
Apr 14, 2010
I am trying to setup a VPN using OpenVPN to allow a secure connection between my smartphone and my LAN. I have been reading an OpenVPN book and some tutorials on how to setup the server side, but I'm stuck at how to create a virtual device. The OpenVPN book says when installing OpenVPN the installer (or aptitude to be more precise) should ask me if it should create a TAP/TUN device. The thing is, it doesn't ask me anything at all. It just installs, that's it.
Most tutorials simply tell me to create a new device in the network/interfaces file. Where is the difference? What should I do now? I like having options, that is one reason I like Linux, but this does confuse me. My second question is about the IP range of the virtual adapter. Should it be in the same range as my LAN, or should I use something entirely different?
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May 20, 2010
I have two pci network adapters. I see them in pci device list (lspci). And I see them using ifconfig. How do I relate them - which pci device corresponds to ifconfig network adapter ? (I can't open my hardware and relate them using MAC stickers)
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Aug 26, 2010
I've just arrived at uni and to set up my wifi apparently I need my "media access control which is listed as the phsyical address for ethernet adaptor local area connection." on windows you can find it by using the command ipconfig /all but that didn't work when i put it into terminal.
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Dec 26, 2010
just recently I made the move back to Ubuntu from Windows. Upon re-installing I noticed a problem with me connecting to the internet. Previously on Windows I had updated my Ethernet Adapter driver, upon installing I would have to disable and re-enable the device to let my computer have access to the internet. My problem here is how would I go about fixing this on Ubuntu so I can have internet access on Ubuntu
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Jan 17, 2011
The Wired Internet adapter isn't working with Ubuntu 10.10, and without this working, I can't get my updates for the Broadcom WLAN adapter. I have a Realtek RTL8101E/8102E PCI-Expredd Fast Ethernet controller. I have looked for solutions, but haven't found any relating to my problem.
To be specific: Ubuntu 10.10 is recognizing the Ethernet adapter as eth0. When I try to manually connect after inserting an Ethernet cable connected to the Internet, it tries for a couple of minutes before telling me the adapter's been disconnected. The connector lights remain the same on the port as they always were.
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Feb 12, 2011
I have this tread, for a ASIX USB ethernet adapter. Still don't work.Tody i bought a Davicom DM9601 USB 10/100 EthernetI read here about this work out of the box, since 2.6.21 kernel. I have Linux Mint (Ubuntu 10.10) with 2.6.35-x kernol version; lsusb detect it; dmesg, detect it; at configure, automaticly get the MAC address, but just didn't work; with ping command, i get network is unreachable.
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Jul 8, 2011
Ok so I tried to follow the directions here: [URL] However, I couldn't find 2010_0915_RT3572_Linux_STA_v2.4.0.2.tar.bz2. Instead, the closest I could find was 2011_0407_RT3070_RT3370_RT5370_RT5372_Linux_STA_V2 .5.0.2_DPO.bz2, so I tried it. I edited config.mk and rtusb_dev_id.c as chili555 advised. I tried to edit linux_rt.h, however, the only file I saw was rt_linux.h. I edited it according to chili555's post, message #7. I went back to the root directory of the extracted .bz2 file and did
[Code]...
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Mar 24, 2010
My Eth0 has 3 virtual Ethernet (eth0:1, eth0:2, eth0:3)
Eth0 -> 202.1.1.1
Eth0:1 -> 202.1.1.2
Eth0:2 -> 202.1.1.3
Eth0:3 -> 202.1.1.4
I am unable to ping them (202.1.1.2 - 202.1.1.4) from Client's PC.
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Nov 11, 2010
I m facing problem in creating virtual network adpater. I want to have multiple mac address for a single NIC.
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Nov 10, 2010
Is it possible to create virtual network adapter on the same physical network adapter? or How to give or have multiple MAC Address to the same adpater? I m working on centos 5.3.
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Jul 3, 2010
I need to set a NAC (PacketFence) system , i would like to set in my case eth0 to work with several different VLAN'S i created ifcfg-eth0.2 copied from orginal ifcfg-eth0 and changed the ip and append VLAN=yes but when i am triyng to load ifcfg-eth0.2 i get error
I must missed something
My ifcfg-eth0 goes as follow
Code:
My ifcfg-eth0.2 goes as follow
Code:
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Jul 3, 2010
I need to set a NAC (PacketFence) system (CentOS 5.5), i would like to set in my case eth0 to work with several different VLAN'S i created ifcfg-eth0.2 copied from orginal ifcfg-eth0 and changed the ip and append VLAN=yes but when i am triyng to load ifcfg-eth0.2 i get error
my ifcfg-eth0 goes as follow
# Intel Corporation 82578DM Gigabit Network Connection
# Normal VLAN Lan adapter (Managment)(On-boad 1st NIC)
DEVICE=eth0
[code]....
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Aug 23, 2009
I have spent considerable hours searching forums and googling. I have yet to find out what "lm-sensors acpitz-virtual-0 Adapter: Virtual device temp1:" is actually looking at. I have an Abit IP35 motherboard with Ubuntu 9.04 installed.
Here is the output from sensors:
Virtual Device Temp 1 keeps going up to 121 degrees and the computer shuts down. None of the others overheat. Also, my bios does not show my voltages to be set like it lists above. The bios in the motherboard is the latest from Abit.
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Jul 6, 2010
I`ve got a dual boot of win 7 and ubuntu 10.04. After I put the system to sleep in win7, it was unable to start the ethternet adapter back (Now after system boot, the lights around the ethernet port blink for a few times and then turn off. This repeats in a while). Now it is disabled in ubuntu too. Is there any way to start it again? It is a Realtek RTL8111/8168B PCI Express Gigabit Ethernet controller.
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Jan 18, 2010
I have opensuse 11.0 on a PC with Broadcom NetXtreme BCM 755 ethernet adapter. I am not able to connect to the internet. what could be the problems. how to solve it?
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Jan 31, 2011
I'm installing Debian 5.0.8 on a Dell Latitude E6410 using the network install x86 CD.
Unfortunately, it won't detect my Ethernet adapter. Specifically, I get the error: No Ethernet card was detected. If you know the name of the driver needed by your Ethernet card, you can select it from the list.
lspci shows: 00:19.0 Ethernet controller: Intel Corporation Device 10ea (rev 05)
That should correspond to the e1000e driver. But, if I select it from the list, the install CD still fails to detect it.
Ubuntu 10.10 and Windows 7 are able to use this device with no problem.
Does anybody know what I can do to make Debian use/recognize my ethernet adapter?
Edit: Additional Info:
I think this is an Intel 82577LM Gigabit Ethernet chipset. If I switch from the graphical installer to the console and run lsmod, I see e1000e with a use count of 0.
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Dec 22, 2010
I recently got Fedora 14 installed and much to my dismay my Ethernet adapter (Intel 82566DC) didn't work. This is left me disconnected from the internet and made it impossible to install any packages. Googling and searching the forums got me these bits of information: [URL]. From what I gather, the 2.6.35 kernel is at fault. So I can solve this by installing the most recent e1000e ethernet drivers. Long story cut short, it didn't work too well for me. I couldn't simply make+make install it, which demanded other packages to be installed first. These in turn had other dependencies. After several failed attempts and ideas I'm at my wits and end and left with two options:
1. Installing an RPM (hopefully it shouldn't have any dependencies). Is there a site where I can download the driver RPM directly? I can't install and use rpmbuild, because I can't even connect to the internet.
2. Waiting for a newer version of the kernel. How long will I have to wait and how easy will it be to update it, without internet connectivity?
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May 2, 2011
I am using this code to get some info about ethernet adapters.
Code:
How do I determine the media type of adatper? For example wireless, bluetooth, ethernet(802.3) etc.?
Another one which is based on getifaddrs is here:[url]
If it's easier to get media type using getifaddrs then I would use this method.
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Aug 12, 2010
I have spent them with Fedora and liked it a lot. Today I decided to install CentOS as this looks like something I would like to be using in the future. However a problem I could not solve came right at me after the first boot.
I have one eth0 device which is onboard lan and that was correctly recognised and activated. The second device is F5D5055 Belking USB Gigabit ethernet adapter. There was no problem with it whatsoever under Fedora. According to all the info it should be automatically recognised on kernel 2.6.14 and later. However when I plug it into the USB port, I can see its correct name in the device manager but it is not recognised as a network device. I have configured my Fedora as a firewall/router for my lan and definitely want to use that interface.
Hopefully without needing to do anything in the realm of compiling kernel, cause that is where my half a day long attempt to fix the problem left me.
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Jan 29, 2010
i have just installed fedora core 12. my pc has 2 lan adapter. 1. onboard rhine. 2. intel card. os has given eth0 to onboard card and eth1 to intel but i want eth0 to intel card and eth1 onboard card.
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Jun 25, 2009
I've an USB Network Controller product from China with no driver for Linux... It's seem in my FC10 not correctky fuctional... On Windows it worked as SR9600 USB To Fast Ethernet Adapter... here is my log...
Code:
[root@home ~]# dmesg | grep USB
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
hub 1-0:1.0: USB hub found
[code].....
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Nov 4, 2009
I have Installed centos 5.3 and enabled virtualization on it. now i want to create virtual mechine , while trying this im getting following errors :i have used virt-install command then it has asked some questions and i have answered them of what ram , location e.t.c .. after that a warning came reagarding partition , then an error came like : input / output error during read on /dev/xvda i have ignored this error and continued installation at last i have got an error:like LVM operation failed : vgcreate failed for volgroup00 , the installer will now exit.
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Jan 7, 2011
know of a way in Linux to have a virtual ethernet (e.g., eth0:1) appear as a "real" ethernet (eth1)? I ask because I have an old Shuttle box that only has one mobo ethernet and no way to add more. I'd like to use it in my Oracle RAC lab, but RAC requires two physical ethernets. You can't fool it with eth0 and eth0:1. RAC won't setup correctly if there's only one eth adapter, so I'm wondering if there is a way to fake two ethernets. I do not care about performance or reliability - it's my home lab. I fully realize that this violates every principle of HA, but I'm just using it to study. Worst case, I can get a USB dongle ethernet adapter, but I'd prefer to avoid the cost if possible.
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Jun 1, 2010
I'm having some trouble creating a VM of Ubuntu 10.04. I've downloaded the ISO. I've created a new VM using the VM Assistant. I selected "Use operating system installation disc image file" and chosen the ISO. When I run the VM, it sits at the following screen:
I've selected Virtual Machine > Install VMware Tools. Nothing happens.
Could someone point me in the right direction?
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Dec 8, 2010
[URL] using Ubuntu on Virtual Box and creating SWAP partition on /dev/sdb1. I tried this guide and getting error
Code: [URL]
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Dec 24, 2010
i have jsut installed hypervisor tools and was trying to setup xp in a virtual machine.. but i keep getting this error unknown OS type hvm
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Jun 28, 2010
I need to ask about Virtual Interface, as I need to use my ethernet interface to act as two ethernet ports. As I need to give eth0 an IP address and give eth0.5 another ip address, and make some natting and other issues. Can I do that with the same interface?
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Sep 1, 2011
My laptop was working fine on wireless till the userinterface changed and it defaulted to ethernet and now it won't let me go back on wireless How do i disable ethernet?
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Mar 9, 2011
I want to create a virtual serial port in Fedora. I'm using Java code to communicate over a serial port. I want to test this code with out any serial devices connected.
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Apr 14, 2010
I'm quite new to linux, but I've managed to grasp some basics. Now my intention here to create a virtual directory, which I resorted to creating an Image File so that I can mount it and have my folder have a dedicated storage. I will mount this image as a loop device. Well it's not much of a problem, but I would like to know whether this is suitable. Say I want to create a 25GB Image.
Code:
dd if=/dev/zero of=/home/disk-img/25GB.ext3 bs=1G count=25
Is this recommended? I'm using block size as 1G which is really huge, so I was wondering, if this is actually recommended. From what I read, some said that it's only advisable to use 4096k or lower, but what I found was that these suggestions are very dated (year 2003), and it is now 2010, so I would like to know if it makes any big differences.
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