Ubuntu Networking :: Ethernet Port Not Recognized?
Jul 27, 2011
I am running 11.04 on a Dell Inspiron 1501 (the first gen.). I was using my Ethernet port to connect to the internet until about two weeks ago - suddenly the system no longer recognised that port even existed and just kicked me offline. I am able to get online now with a wireless card (replaced the broadcom card, that was a whole different can of worms...).
why my system is unable to connect with the Ethernet port? If I plug in the cable nothing happens.
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Oct 6, 2010
while my brother was browsing the web on my windows partition he had a blue screen pop up, one of the soft/hardware error ones, not a true BSOD, anyways, ever since my lan port on the computer seems to not be activiating as no wired connection is recognized. The lan port/card is directly attached to the Mother Board, it's a gigabyte motherboard in a self-build computer. I'm just wondering if there's anything I can do to troubleshoot this and see if it is truly a hardware problem or if its something else.
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Aug 30, 2010
i have an embbeded hardware that uses bootp for booting from a Network Managemnt Host (NMH)on the same ethernet. The embedded hardware has both kind of ports i.e ethernet as well as E1/T1. I would like ask, what do i require to establish a communication-link between the embedded hardware and the NMH throuh E1/T1 ports of embedded hardware, so as to make it boot through from E1/T1. Further, NMH possesses only ethernet port. Just to refine my questions i'd like to know what additions do i need to do on my NMH , like may be i have to put an E1/T1 port or is it possible that the E1/T1 port can be directly connected to an ethernet port on the other host.
pardon me if i am not making absolute sense here as my knowledge is limited on Layer 1 and layer 2.
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Jun 17, 2010
I just installed 10.04 on my new netbook and I am suprised to see that the ethernet is not recognized. When I run
Code:
ifconfig eth0
the result is
Code:
no such device
The machine was working fine before I installed Ubuntu. I am suprised to see this problem as I have already installed it on a few machines without any problem such as this.
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Feb 19, 2010
A command like (single quotes used in the command):
Code:
ssh -L '[::1]:3128:127.0.0.1:3128' ...
is getting an error message like:
channel_setup_fwd_listener: getaddrinfo(::1): Address family for hostname not supported
This is supposed to be an IP address, not a hostname, for the localhost in IPv6. Anyone know what is wrong with this? Addresses like this work OK in rsync. I know I can use ip6-localhost as a hostname. But right now I'm testing actual IP addresses in IPv6 to see what programs can or cannot handle it.
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Jul 29, 2010
I can't figure this out for the life of me. I am new to Linux too. Wireless works fine. I plug my Ethernet in and turn off wireless and I cant surf the web, download, etc...Network Manager finds the wired network under eth0 and it works perfect on my non-linux desktop (nervous to even mention Vista around here). Firewall was set up with basic setup (I didn't make any changes). I have a Sony vaio VPCCW21FX with fedora 13. Can anyone point me in the right direction?
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Apr 29, 2010
I have a Dell Studio 1501 Laptop and I want to bridge the wireless with the ethernet port so I can hook my xbox360 to my laptop.
I've spent the last 2 hours trying different techniques but nothing is working.
I'm running Ubuntu 9.10 so the last thing I tried was going into the network manager, clicking on wired, editing the ethernet port and allowing it to share. This did nothing.
I tried to share the connect with firestarter but that did not work either.
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Apr 20, 2011
I am using ubuntu 9 but unable to connect to internet via my usb Siemens c110 modem. I have a dual boot system of both windows7 and ubuntu9. I am using the same modem in windows7 and have installed virtualbox where i have installed the same ubuntu9 but there it automatically detects the wired connection(usb)[eth0] but in the actual boot it doesnt detect anything. I have typed in the terminal sudo ppconfig but it was unable to find anything.
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Jun 21, 2011
I am running Ubuntu 11.04 and i am curious to if there is a way to share my established wireless connection through my Ethernet port.. I know it was possible in Windows by going to adapters and bridging the wireless, and Ethernet adapters. how to make this work in Ubuntu?
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Mar 1, 2010
I changed to a 4 port ethernet router (D-Link DSL-2542B Adsl2+)with intention to share Internet access with my brother (he's on Vista).Initially it all went well,but 3 days ago there were connection problems occured on the part of the ISP. Without realized the problem,I had reset the router.This morning I've been informed by the ISP that the connection has been re-established.So,I accessed the Internet via the 4 port router but failed to do so (server not found).Suspecting that the problem was from the 4 port router,I reverted to my old Adsl router (DSL-520B single port) and without any problem I managed to access the Internet back.I really need help to configure back the 4 port ethernet router to its initial state.
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Jul 21, 2011
I'm running an ubuntu maverick server, and I'm having a slight problem with networking. I've only got one ethernet line running into my room, and I've got loads of computers. The server has 2 ethernet ports, one integrated into the motherboard, one on a PCI card that I took from my old server. The on board ethernet never worked on my old server- but I only tried it out post-install, it was hooked up to the card during install (For the record, networking on linux has *never* worked for me if I installed then plugged in the networking stuff after the fact). So I just used the card instead. Transferred the hard drive into a new machine, and lo and behold, it would only work after I transferred in the card from the old one. What I wanted to set up is a basic NAT system, where the network connection is routed through from my server to my main desktop- but when I run ifconfig, my card is not detected, just lo and eth0. How can I fix this?
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Aug 13, 2010
I am using Ubuntu 10.04 Lucid and VMware 2.0 server. I have a an XP virtual machine that is needed for work. When I am at home and I place my cat 5 cable to my cisco catalyst switch, my XP VM recognizes the ethernet card on my laptop and bridges fine with ubuntu and works fine and I can get to my network. When I take my laptop to work and I go to a site and I plug it into a World Wide Packet 311 management port on the switch, my XP Virtual Machine does not see the network no matter what setting I set it too(100 full, 10 full, 10 half and etc). It simply says that the network card is disconnect. Ubuntu see the network fine and I can ping and talk to the network without any issues but the VM does not.
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Aug 5, 2010
I have recently installed Fedora 13 on my netbook. I wish to use my HP Officejet via the HPLIP utility. The problem with this is that when I have the firewall turned on, the printer is not recognised at all during setup. When the firewall is switched off, the printer is recognised. The printer in question is an HP Officejet 8500a which is connected via Ethernet cable to a wireless router. I would like to know if there are any network ports (that's used by HPLIP) that I could 'turn on' in the firewall that could let my computer recognise the printer.
[Code]....
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Nov 8, 2010
I have a simple server running Ubuntu Server. Usually the server connects to the network by Wifi, so there is usually no cable connected to the Ethernet port. I noticed that there is a dhclient3 running on eth0 anyway. It is causing undesirable disk activity. Obviously, it is never going to get a response as long as no cable is connected. I can kill the responsible process manually, but I wonder first what is starting the process and how I can prevent it from being started. If there is a way to get the server to boot without starting this process, I wonder whether this is the right solution. Connecting to the network by Ethernet is the failsafe when Wifi doesn't work. I guess what I would like to see would be a way for the server to detect when eth0 does not have a cable connected and not start dhclient in that case, but to activate dhclient when a cable is connected.
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Jul 6, 2010
I have a server in a colocation environment where I'm allotted 25Mbps. I'd like to avoid exceeding that for obvious reasons. Is there a way I can set the link speed or at least throttle the bandwidth for all services?
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Mar 11, 2010
I'm currently using Ubuntu 9.1, and a motherboard which has two Ethernet ports on it.
What I would like to do is bridge these ports, so I can plug in another Ethernet cable and run it to an unmanaged switch in my room (handy for my work laptop when on-call and building other PCs, etc).
I.e. Router --> 8-Port Switch --> My PC.
Eth 0 --> 192.168.1.100 static
Eth 1 --> 5-Port Switch --> DHCP
I believe this is the config to make the ports bridged:
ifconfig Eth0 0.0.0.0
ifconfig Eth1 0.0.0.0
brctl addbr Bridge0
brctl addif Bridge0 Eth0
brctl addif Bridge0 Eth1
ifconfig Bridge0 up
- How do I save this so upon reboot it sticks?
- How do I force Eth0 to remain as a static IP of 192.168.1.100?
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Jul 28, 2010
I have a Dell WLAN 1397 Half Minicard, 802.11 b/g card in my laptop, and I can't seem to get ubuntu to work with it. I tried this method:
1. Synaptic Pack Manager
2. Check "Install from Boot Disc"
3. Reload
4. Install and apply bcmwl-kernel-source
5. Reboot
This didn't work for me, so I tried entering sudo apt-get install bcmwl-kernel-source and that also didn't work. Another thing I tried is formatting my Ubuntu partition and reinstalling, and retrying both of those methods. The ethernet port does work, however.
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Feb 25, 2010
I want to transfer the audio file on linux machine using Ethernet port, is it possible?
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May 20, 2010
I recently installed a new CPU and motherboard in my Media Server, but the ethernet port isn't showing up under ifconfig. Is there any way to install additional drivers? EDIT: The model is Realtek RTL8111/8160B.
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Dec 8, 2010
I have installed Ubuntu 10.10 on a new hard drive on an old Acer Veriton M464 but the network adapter is not recognized.
System/Preferences/Network Connections (Wired tab) shows no connections.
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Feb 10, 2011
Pl can anyone guide me to connect centos 5.5 using ethernet port to ADSL Broadband modem which is configured in PPPoe mode?
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Sep 7, 2010
Running CentOS 5
System see the device with an lspci, yet will not load
Vendor:Device ID is 14e4:1691
Broadcom BCM57788 on board ethernet controller
Cannot find driver or anyone that seems to support it. Am I missing something?
This is in a Dell computer.
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Mar 4, 2010
i can't install debian 5 in my emachines G725 notebook, the ethernet card is not recognized, it's name: Atheros AR8132 PCI-E Fast Ethernet Controller .
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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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Mar 7, 2014
I tried to install the latest stable version of Debian (download yesterday : Debian Wheezy 7.4.0) on my new computer Fujitsu Celsius W530.The version installed is exactly this one (given by the commande "uname -a") :
PCNAME 3.2.0-4-amd64 #1 SMP Debian 3.2.54-2 x86_64 GNU/Linux
=> A Debian Wheezy 64 bit
I have a problem with the Intel ethernet card : I217-LM (the model was verified on the Fujitsu specifications and also on the Windows 8 I use on another partition).During the install procedure, Debian did not find the ethernet card.I continued the install without it and after I tried to make it found.I got a Linux driver in the Intel Web Site but I saw after that Debian loaded yet this driver (e1000e), so I did not install the driver from Intel (I needed to get linux-headers and to compil the files).
So when I force the system to load the driver, it gives no error but the device is still not found when I try to bringup the network interface.URL...
- understand why I see the Device (with "lspci" command) and the module "e1000e" (I tried also the "e1000" one) loaded with "lsmod" command ?
- make the card work to allow my debian for connecting to internet ?
Here some commands which can show you the problem :
Code: Select all~# lsmod | grep e1000
e1000e 120822 0
root@PC-DEV-JB-debian:~# ll /lib/modules/3.2.0-4-amd64/kernel/drivers/net/ethernet/intel/e1000e/e1000e.ko
-rw-r--r-- 1 root root 184K févr. 2 02:04 /lib/modules/3.2.0-4-amd64/kernel/drivers/net/ethernet/intel/e1000e/e1000e.ko
[code]....
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Feb 18, 2010
I want to do a simple port redirect, i.e. whatever comes trough whatever interface on port AAAA will get redirected to port BBBBI thought that iptables -t nat -I PREROUTING --source 0/0 --destination 0/0 -p tcp --dport AAAA -j REDIRECT --to-ports BBBBhowever it doesn't work, e.g. nc -v -w2 -z localhost AAAA gives:
nc: connect to localhost port AAAA (tcp) failed: Connection refused
while
nc -v -w2 -z localhost BBBB
[code]....
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Aug 4, 2011
I have a program which requires running on port eth0. My current connection is named eth7. how can I change this? I went to /etc/network/interfaces but did not see the connections for eth0 or eth7 in that location. I also tried to change it in the "Network Manager" but that just broke my connection and returned errors. What Can I do?
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May 7, 2010
I keep on getting intermittent ethernet failures using a Gigabyte GA-MA790FXT-UD5P 790FX motherboard with a built-in network card. This is a problem on all operating systems.After many intermittent failures I think I've finally found the solution; turn the PSU off, wait until the CMOS light goes off (about 15 seconds), then turn the PSU back on. It appears a bug with Linux where a setting on the firmware of the network card is occasionally incorrectly modified causing it to malfunction, when power is removed from the device the setting resets to default and normal functionality is restored.
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May 2, 2010
My computer has 2 HDDs attached to 1st and 2nd SATA ports of my mobo respectively, the 1st SATA drive is empty while the 2nd have my Windows Vista on it. I also have a Perc/5i RAID card with 2 RAID arrays defined.
I am going to install Ubuntu 10.04 x64 to the 1st SATA driver (I expect it will be /dev/sda), but when I try to install, I found my drives are recognized as below,
/dev/sda > 1st RAID array of my Perc/5i
/dev/sdb > 2nd RAID array of my Perc/5i
/dev/sdc > 1st SATA drive < I need to install ubuntu on this drive
/dev/sdd > 2nd SATA drive
I don't want to install 10.04 as /dev/sdc because I may add more arrays to my raid card which from my experience of 9.04, it will probably change the drive letter of my current /dev/sdc and then system will fail to boot.
Is there any way to force my 1st SATA HDD as /dev/sda during install ?
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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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