Fedora Networking :: Did Network Manager Kill Eth0 Access
May 6, 2010
I have a troubling networking situation that is compounded by the system being remote without any out-of-band mgmt in place nor a serial connection - but am relying on a coworker entering commands into the terminal for me, or doing stuff in the GUI I have an FC12 i386 install running, that was up and stable for 6 days. Primarily this was only being used for a deployment of nTop. Up through Monday evening, I was connecting to the system (in NY) via VNC (here in SF), and was successfully watching nTop do its thing.
Tuesday morning, I go to connect to SSH and I can't get in. The NAT translation is still in place on the firewall, but there is no connection to the NIC/eth0 from the router. This is what I've had my coworker run:
[code]...
I was going to try and have her run the /sbin/mii-tool eth0 tomorrow a.m. just to verify that the interface isn't physically bad? But this is a brand new desktop, and I can't for the life of me understand why this interface went down. I also have the internal IP on a DHCP reservation, which is the same IP listed in IPADDR in the ifcfg-eth0 file - could this be a problem? should I remove the DHCP reservation? I did this so I could SSH to a public IP which I have NAT'd back to the internal 10.0.x.x address I had my coworker take a look at the GUI, and the eth0 properties are "inactive" and the "Activate|Deactivate" buttons are greyed out.I suppose I can have my coworker grab the /var/log/messages and copy to a USB drive, then email me that from another workstation.
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May 3, 2010
I'm running Kubuntu 10.4. My problem is that Network Manager keeps defaulting back to Auto eth0. I have created a new wired connection and set my manual addresses. I have ticked the 'connect automatically' button. Every time I reboot or wake up it reverts back to Auto eth0.I did have wicd installed but this was not reconnecting after wake up (said it was connected but I couldn't ping etc), this is a pain also.
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Jan 23, 2011
I'm working in windows, and that's why I have been able to access the network. In F14, I was able to access the router address while the internet access ain't. Tried restarting network, and still the problem persists. Tried [URL] and the only thing that i've infered is that IPv4 Failed: FATAL plus, the routing table showed 0.0.0.0 as one of the entries (Gateway). So, i've deleted the wired network configuration from the Network Configuration and checked whether the os would pick it up automatically. It still didn't work.
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Aug 19, 2009
5.10 Breezy configured as machine controller. Works great eth0 is a fixed IP to communicate with controller comms board. Not easy at all to alter - the comms board is hard coded to listen on eth0 for commands.
I can use eth1 as the default gateway and ping google.com, etc. But when I now attempt to communicate with the controller with netcat, e.g.
Code: echo !HH | nc 192.168.1.6 80
I obviously never get an answer since the request is passed via eth1. Using the -g option with netcat doesn't work either. I had a look at iptables but it doesn't seem to be able to do what I want. How I can still use eth0 as my communication port to the controller whilst eth1 is the default gateway?
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Feb 26, 2010
I'm running Fedora 12. I've been using Amahi for a trial but this blew up. Last attempt to use it flagged up a problem with Ruby on Rails release version incompatabilies. I've removed Amahi using the software toolk. I now have no internet access and no ETH0 in network manager. How do I get my ethernet back?
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May 27, 2009
i'm trying to install virt-manager , to run a couple of virtual machines, i created a virtual nic vnet0 and bridged it to my eth0, i have configured the /etc/network/interfaces file with proper static ip, but i beleive the network manager is renaming my nic to eth1 and causing all kinds of problems. I uninstalled network manager and now i can ping anywhere in the network, but not outside it. ie google.com
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Jul 1, 2010
I'm trying to configure internet access using KDE network manager. Added new VPN pptp connection, set gateway and other options but manager tries to connect for about a minute and breaks then. Here is /var/log/daemon.log
Code:
Jul 1 17:35:22 dvinokurov-desktop NetworkManager: <info> Starting VPN service 'org.freedesktop.NetworkManager.pptp'...
Jul 1 17:35:22 dvinokurov-desktop NetworkManager: <info> VPN service 'org.freedesktop.NetworkManager.pptp' started
[Code]....
As I understand the main problem is in "(IP Config Get) timeout exceeded".
Configuration: Kubuntu 10.04 x86, VPN server with MSCHAPV2 auth, no compression, no encrypting.
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Jun 1, 2011
Should I be able to see eth0 in the Network Connections control program that ships with Kubuntu?Its not there. See screen-shot.eth0 definitely exists and I can access the Internet no probs but it doesn't show in the above.
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Sep 1, 2011
I connect to the WPA2-secured wifi of a university. They use 802.11b/g on the 2.4 GHz band and 802.11a/n on the 5.2 GHz band. Both have the same SSID xyz (for roaming).Now, when I connect to the SSID xyz, ubuntu 11.04 (natty) chooses the Access Point with the highest Strength. However, this is a 802.11g Access Point which is very slow because of high usage and there is no 802.11n available. Slow pings make it unusable.network-manager is just too stupid to connect to the much faster 5GHz 802.11n AP.Windows 7 autmatically connects to the 5GHz 802.11n Adapter with 300Mbit/s. That's what I would expect from ubuntu as well. I think Mac OS X also performs great in such situations.
The only workaround for me is to enter the BSSID (Mac-Address) of the 5 GHz AP directly in network-manager. That works and I have 802.11n with up to 300 Mbit/s. However, this is not the perfect solution, because now I can't use roaming any more (we have lots of APs here!).Do you have any Ideas to prefer 5 GHz band over 2,4 GHz band? I also tried the "band" gconf option as well as kernel module options of module iwlagn with no success.
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Mar 31, 2011
I used the network manager to configure my eth0 interface.It is working fine. I have found the nameserver entries in /etc/resolv.conf files. But the /etc/network/interfaces file does not carry the ip, netmask, gateway,network and broadcast entries. It only has a entry for the lo interface. where are the settings for eth0 as done by the network manager, stored in case of ubuntu?
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Aug 19, 2010
If I made a distro from scratch it would have been Lubuntu, cept I'm sure my theming would have been horrible. Now Ive installed on a couple of my Laptops, and even had a few friends convert, and for the most part everything is hunkus doris, cept one small issue thats keeping me from slapping it on my trusty laptop. I'm lost as to what the problem could be. Ive tried just about all I can think of, but I use sprint mobile broadband to connect to the net and then use Network Manager to share this connection with the laptops and Palmtops around the house. I can get my sprint modem to connect thats not a big problem the problem is now I cannot get the Auto Eth0 to connect to send out as a share. It just refuses to connect. Now this is not a Lubuntu problem at all Im sure its somehow a Lxde problem, as Mint Lxde, PeppermintOS, and so on do the same thing, refusing to connect Auto Eth0 while Sprint is connected. Any Gnome based distro this works flawless, as does Xfce distros, so Im sure this is somehow something within Lxde. Im sure its down to just "missing" a file or some stupid overlooked thing.
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Jul 30, 2011
I am using FC 2, and I get 'eth0 failed' during startup.
I am configured for DHCP
device is 'inactive' under network device control after reboot
click 'activate', sometimes I can surf, others not.
When I can't get online, sometimes deactivating and reactivating works.
edited connection to 'activate device when computer starts'
eth0 still fails at start-up, and device is inactive.
I am supposed to use FC2 for my schoolwork
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Feb 4, 2011
this is my config etc/network/interfaces
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
[Code]....
the problem is the client which access through hostapd can connect to internet but the server no (eth0 is the interface connected to internet)
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Jan 23, 2010
I'm trying to connect to the VPN of my employer; after fix various minor issues I reach this point in which the DNS entries and the default gateway of the VPN are overwritten with the values of the eth0 device that appears by default. Therefore the vpn is not useful.
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Nov 15, 2010
This week I did a fresh install of Ubuntu 10.10 on a newly assembled PC. The hardware I am using is below.
My wife has a Macbook with built-in Wifi connected to our Linksys router. Previously, the connection would drop 0-2 times a day. She would turn off Wifi on her Macbook, turn it back on, and it would reconnect immediately.
Since getting my Ubuntu PC, these disconnections have become more frequent, every 30-90 minutes. They effect both computers simultaneously. And now, I MUST turn off Wifi on my Ubuntu box to regain the connection. Switching it off and on with the Mac doesn't help. Unplugging the router doesn't help. I have to run upstairs and uncheck "Enable Wireless" on the Ubuntu Network Manager outlet.
The connection doesn't seem to drop if the Ubuntu PC is sitting idle. But it can happen with web surfing, Samba file transfers, or torrent downloading.
I noticed that Encore has a linux driver for my card called RT2860. It looks very difficult to install. Ubuntu automatically uses RT2800. So I don't know if this could be a driver issue. Also, shouldn't my bit rate be more than 1Mb/s? Both the router and the card are 802.11n. Are the dmesg errors something to be concerned about?
Machine Brand and Model (PC/Laptop): Self-built Desktop. AMD Phenom, Gigabyte motherboard. Router Brand and Model: Linksys Wireless-N Broadband RouterWRT160Nv2. (I already updated the firmware to the most recent version)
[Code]...
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Mar 11, 2009
I updated my FC10 just a day back. The problem is that Netwrok Manager has disappeared. And in spite of re-installing it, it doesn't appear on the panel when i enter 'NetworkManager' as root in the terminal.I have a USB modem right now. Update was made through a broadband connection. Ethernet works perfectly well but this USB modem of mine doesn't work at all. And I have to use USB not Ethernet.
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Jul 7, 2009
I have got DHCP issues with Network Manager. Whenever I try to connect using static IP it works, but when I use use Netowork Manager with DHCP, it seems to try to connect and soon says "Network Disconnected"..I've managed to connect to wlan and eth using network, so there shouldn't be any hardware/driver issue.
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Jan 20, 2009
I have run Fedora 9 and 10 on my Dell Inspiron 640m for about 6 months now and generally experience very few issues with it. Specifically I've been running Fedora 10 KDE 64bit since it was launched. Up until I had to reload it a couple of weeks ago my Vodafone Huawei E172 3G dongle worked perfectly with Network Manager. Since the reload the dongle is detected by the OS (lsusb lists it correctly, etc) but nothing I do will make it appear in Network Manager.
I've tried manually configuring a GSM connection then plugging it in, but no joy. I've also tried using it in my Acer Aspire One which runs Fedora 10 XFCE and it work, but when I try it in another Dell Laptop running Fedora 10 KDE 64 bit it doesn't. I'm assuming that a recent update must have caused some issue as it has definitely worked in both Dell laptops in the past. As mentioned I've reloaded recently but the other laptop hasn't been.
I'm unsure where to go from here. I haven't been able to get Vodafone's beta drivers working under F10 (although I did under F9) and can't find any posts on this issue. The version of Network Manager that I'm running is NetworkManager-0.7.0-1.git20090102.fc10.src.rpm, which was released shortly before I reloaded. Chances are I just didn't try my dongle between the update coming out and the reload, so didn't notice the problem before hand.
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Mar 10, 2009
I'm running Fedora 10. My Network Manager settings are all grayed out. They are uneditable. I can see the detected settings, but not change them. All of the settings fields are disabled.
Is there a way to enable these, so that they can be edited?
Starting with the menu in the upper left corner of the GNOME screen: System/Preferences/Internet And Network/Network Connections
The Network Manager window appears correctly.
I see all automatically generated settings that were created for my various devices:
In particular, I want to be able to edit "Auto vmnet8", for VMware usage.
I know about the workaround of going back to the manual network configuration as used in older versions of Fedora, such as editing the files in /etc/sysconfig/network-scripts/ifcfg-* and then enabling the old "network" service and disabling the "NetworkManager" service.
However, this workaround really won't work in this situation. The VMware interfaces, vmnet1 and vmnet8, are virtual interfaces that *only* exist when the VMware services are running. The VMware services are started *after* the old manual network configuration would be applied. So, at the time the scripts in /etc/sysconfig/network-scripts are processed, the vmnet1 and vmnet8 devices do not yet exist! I'm hesitant to change the numbering of services, lest other things break (VMware on Fedora 10 is rather fragile already).
I love the feature of NetworkManager to be able to automatically apply settings to newly materialized network devices (such as vmnet1 and vmnet8 when VMware is loaded). However, I need to also be able to edit those settings.
Is there a solution that will make my Network Manager "Edit" window not be entirely grayed out? I can see the settings pages just fine, but unfortunately, they are all disabled and I can't edit them at all.
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Jun 23, 2009
I got a little problem with network manager. I got two connections in it, with two different DNS-Servers, because the one of my provider is very slow I surf with opendns, but sometimes that slows down too, so I want to change if necessary. Both connections got the same fixed IP.That worked all fine, until I got my new router (it's a Netgear WGU 624). It's connected by cable and I configured it like the old one. But for some reason instead of connecting to the manually configured connections, my fedora 10 creates a new one "auto eth 0" with a dynamic IP. So every time I boot or switch on from standby my PC connects with this one and I have to manually set it to the right connection. There's no chance to edit or delete it cause those two buttons are grey and won't work. I also tried restarting network manager manually and I also tried starting it with su as root.
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Jul 20, 2009
I lost my network manager applet after removing kde-desktop. restore it, as I dont find it in add to panel applications I dont have any clue, also how could I add bluetooth applet in notification area.
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Jan 13, 2010
I currently managed it to get a pptp-connect to my home network. now I have another little problem. NetworkManager always routes the whole network traffic over my home network if i am connected to the home network.If i set the "Use this connection only for resources on its network" I have do manually say:
Code:
route add -net 192.168.1.0 netmask 255.255.255.0 dev ppp0
After that only the correct traffic runs over the vpn. Now my question is it possible to setup the route via the networkmanager gui?
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Mar 27, 2010
After an update in mid-February I can no longer get Network Managero run anyinterface. I tried downgrading ppp, but that did not help. I have tried to delete all devices, but there is no user interface from which I can do that. Network Manager does not appear in any system tray. I even did a complete remove and reinstall, to no avail.This is true on both 32 and 64 bit Fedora 12, and on laptops, desktops and VBox VMs.Here is what I see in messages.log:
Code:
Mar 27 12:09:46 vmf11x64 NetworkManager: <info> Activation (eth0) Stage 4 of 5 (IP6 Configure Timeout) scheduled...
[code]...
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Dec 21, 2010
I'm trying to share internet connection with my wifi capable mobile device. For that I'm creating ad-hoc wifi connection in networkmanager with 'shared to other computers' ipv4 option. And there is the problem - the device cannot get the setting via DHCP. The firewall is adjusted properly by NM, dnsmasq is started. I've looked at dnsmasq arguments string and found that the temporary config file which is provided by NM is empty. So, where else should I look for a possible reason or should I just post a NM bug?
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Feb 22, 2011
I just installed F14 today, all day I have been trying to get my wifi to work, I keep running in problems I found many threads with links to download drivers. I did that and in the README file loses me. It talks about compile driver from the source code.
PHP Code:
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May 15, 2011
Fresh install of Fedora 14 from Live cd.Used it for an hour or so, d-loaded some programs, had ti all running great. Wired connection to internet. Had the Network Connection Manager icon in panel. There was an icon saying new updates, alot of them, like 400 or so. Told it to go ahead and up date, left room. Came back hour later was done, said it needed to re boot, so I did. From then on, no internet, not icon, no Network Connection in the drop down list for preferences.
What I have tried:Worked off live cd, again, all works fine, icon, manager, internet all there.In installed version: In terminal, typed service Network Manager, it said unrecognized service.Did yum install network manager. It started to do it, but looked like it was trying to get stuff off mirrors, and of course there is no internet access. error PYCURJ ERROR 6.Of course I can re install, but I figure I will just end up in the same place a few hours from now.
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Jun 26, 2011
I have a laptop with ipw3945 on. I don't want to use Network Manager. this is my wpa_supplicant.conf
PHP Code:
[code]....
I do as root:
PHP Code:
[code]....
In another terminal as root I do:
PHP Code:
[code]...
but no IP address got.
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Aug 24, 2011
does Network Manager in Fedora 15 support bridging and if so, can you configure the bridge using your wireless interface? All of the information I've come across so far said that you can NOT create a bridge using a wireless interface, and that Network Manager doesn't support bridging, but this info was also from Fedora 12 and below, so I don't know if it's still relevant for Fedora 15. I would certainly hope that by now you can make a bridge from a wireless interface. Even the lowly VMware Player offers this option.
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Sep 23, 2010
I am running Fedora 13 and using Ndiswrapper with my pci wireless card. my router is a netgear wgr614v9 wireless router with wpa2-psk. When I try to connect to my network the only options I see for security are dynamic WEP (802.1x) and WPA &WPA2 Enterprise and for authentication all I see is TLS LEAP Tunneled TLS and Protected EAP (PEAP). I can connect to my network when I drop security on the network but other wise I am stuck. I have been trying to fix it for about a week now by myself to no avail
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Aug 30, 2011
I'm a new fedora-user and are having some problems setting ut everything as i want:
The host to always use WIFI
The host to not see the ethernet-connection.
The guest to use ethernet
The guest to be able to get wifi when no ethernet is avaible.
The guest to install from PXE
The guest is going to be a Windows 7. Nothing is done so far, as i cannot figure out how to do this.
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