Fedora Networking :: Network Bridge Setup Disappears After Reboot
Nov 18, 2009
I am trying to set up bridge, and everything seems to be ok, except 1 thing, it disappears after reboot. So, what I am doing:
Code:
brctl addbr br0
brctl addif br0 eth0
and adding /etc/sysconfig/network-scripts/ifcfg-br0, here it is:
Code:
GATEWAY=192.168.1.1
DEVICE=br0
BOOTPROTO=none
NETMASK=255.255.255.0
DNS1=208.67.222.222
DNS2=208.67.220.220
TYPE=bridge
HWADDR=00:18:f3:75:18:78
IPADDR=192.168.1.3
IPV6INIT=no
ONBOOT=yes
USERCTL=no
and my ifcfg-eth0 is:
Code:
GATEWAY=192.168.1.1
DEVICE=eth0
BOOTPROTO=none
NETMASK=255.255.255.0
DNS1=208.67.222.222
DNS2=208.67.220.220
TYPE=bridge
HWADDR=00:18:f3:75:18:78
IPADDR=192.168.1.3
IPV6INIT=no
ONBOOT=yes
USERCTL=no
How to make it working after reboot?
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Dec 8, 2008
I want to set up a bridge using bridge-utils within /etc/network/interfaces like is shown here in this guide: [URL] The problem is that, at the same time, I want eth0 to have a specific static IP address. Right now I have a configuration for eth0. This guide tells me that I should not configure eth0 outside of the br0 configuration.
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Feb 4, 2010
Im trying to setup multiple domU through the default bridge setup. I am able to access only one of them through the network at a time. If you ping one of the domU it works perfectly but you cannot ping any of the others until you stop pinging the one and even then it takes a bit before you can. Ive looked around for a while and seen similar problems but nothing ever seems quite the same. Im probably missing something really stupid. Or is this the way the bridge is supposed to behave? Do i need to use a routed virtual network?
[Code]....
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Oct 27, 2010
I followed this tutorial => https://help.ubuntu.com/community/OpenVPN
I'm working on ubuntu 10.10 OS
So everything is ok when i start the tutorial with my interface on code...
The only way I can make it work again is by setting the interfaces back to
auto lo
iface lo inet loopback
>> then reboot
and after that put back the br0 settings in the interfaces en restart the network.
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Jul 29, 2011
How do I setup a network bridge in Linux (Ubuntu)? I want to use my computer as a "router" for my Xbox 360.
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Aug 22, 2010
I've currently got a Xen box with 3 Virtual machines on it, in a routed setup. I'd like to put them all on a private internal network as well, which I'm assuming I'd do with a dummy network card and a xen bridge, but I can't find any information about setting up the xen Bridging setup on top of the existing network-route instlal.
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Oct 4, 2009
I tried google but without success. I have a small home network and one computer has to work as a bridge (comp1), it connects to the internet through wlan and is connected with cable to other computer (comp2), I would like to to make that second computer member of a local network with internet access.I was trying this:
Code:
ifconfig wlan0 0.0.0.0
ifconfig eth0 0.0.0.0
brctl addbr br0
brctl addif br0 wlan0
brctl addif br0 eth0
[Code]...
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Nov 15, 2010
I've been having issues with my ubuntu server (10.04 LTS) lately. Every once in a while, anywhere from 3 days to a month or more, the server will just disappear from the network. All manner of trying to reach it from the outside fails, even from the LAN. Since it's headless, this is kind of problematic. After a hard power down or reboot, the server will always come back online, but this is very annoying for a remotely administered server.
What should I look for when trying to determine why the server keeps going offline? I can't tell if there are any other issues like a hard lockup or anything, just that it is not on the network anymore when this happens.
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Jul 8, 2009
The problem in a sentence: a F10 machine seems to disappear from the network after running for a couple of days, however, the network is accessible from the machine itself. My setup: A router with two machines connected via ethernet. Both are essentially desktop computers, one is a standard machine that is booted every day (let's call it Desktop) and the other runs continuously, having only a keyboard attached (let's call it Server).
After running for a few days, Server becomes inaccessible from Desktop. It doesn't respond to ping, ssh fails etc. Even the router shows that Server is disconnected from the network. There is a ping running in Server that pings a machine in the internet with an interval of 60 seconds, the output is directed to a file. The file shows no failed pings, it even succeeds when the router shows that Server is disconnected.
The most peculiar thing: a random keyboard event (e.g. pressing Shift) will make Server reappear. I don't have to do anything else, just press Shift on Server's keyboard and a few moments later everything is back to normal. The router shows that Server is connected and I'm able to do ssh to Server.
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Nov 5, 2009
How do I configure a network bridge to start on boot?
I have two network interfaces eth0 and eth1.
Here is my current network script configuration:
Code:
#/etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
HWADDR=00:10:18:4e:5e:a7
[Code]....
The bridge will come up if I restart the network service after boot....but it won't automatically come up when the computer starts.
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Jun 15, 2011
I have created a mount point (/media/a500) for my Iconia Tablet and added the following to get it to mount automatically.
First download and install mtpfs......Then do this
Code:
sudo nano /etc/udev/rules.d/51-android.rules
SUBSYSTEM=="usb", ATTR{idVendor}=="0502", MODE="0666"
sudo mkdir /media/a500
sudo chown user:user /media/a500
[Code]...
This works just fine for Fedora 14 but on Fedora 15 the mount point disappears on reboot ie there is no /media/a500 folder. a500 appears under devices in Nautilus and mtpfs is ok as I can mount the device via the command line by creating the mount point setting ownership and running
Code: mtpfs /media/a500
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Aug 7, 2011
Sometimes after I reboot, by desktop background is just a black screen. When I go to the settings folder, it shows the image that it previously was, but i have to change either the "zoom" or "tile" settings, or just change the image in order for it to reappear. I really have no idea why this happens, and certainly does not happen with every reboot. If it helps, I am using Intel Ironlake Mobile.
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Jun 19, 2011
I have an adsl modem acting as a bridge to my router my setup was working well for more than year now , but then the internet went slow . I set the modem back to PPPoE the problem was with the DNS server of the ISP so using ifup i set the dns t 8.8.8.8 (google) the connection is back , but when i set the modem back as a bridge slow internet does the router know that my dns is 8.8.8.8 or i should set the dns on the router ? I can't see an option to set the dns on the router ( i just enter my username and password from the isp to use PPPoE mode ) by the way i called the isp support they kept telling me to restart , i told them i did but i never restarted my pc . I'm sure if i tell them i'm running linux they will blame the os !
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Jun 29, 2010
I'm trying to setup a Centos box to act as a backup server for our intranet between stores. I have two interfaces in it, the first one is currently connected to my local network and is using dhcp to get its ip address and such, the second one is set to a static ip address and is connected to an independent network that just has a DigiBoard Portserver hooked to it and no connection to the regular network. What I am doing is using ssh to portforward the telnet port on this box to the main server so when you telnet into the box from the second interface using the portserver you get connected to the main server.
I plan on using this over DSL lines as a backup when our main dervice goes out to allow the portservers at the remote locations to seemlessly connect to the main server by just moving the network cable from the local net to the backup server. My problem is that when I have the everything working I am able to ping the second interface ip address from the normal network even though the secondary card does not in anyway externally connect to the network, this is a problem.
Eventually I want to duplicate the main server address so that the normal portservers and other terminals on the remote site will not have to be reconfigured to access the backup server. All I want is to be able to tell the managers is to switch a cable while the main connection is down and not have to manage a bunch of config files to get the store back up. Right now if I duplicate the main server ip address and it is accessible through the first interface I'm guessing I'll see all kinds of problems relating to duplicate ip addresses on the network. I've tried some routing and iptable stuff but I'm not real familiar with either so I had no luck. Is there someway to block the internal connection between the two interfaces so the only thing that sees the duplicate ip address is the second interface?
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Mar 3, 2010
setup linux in bridg mode for my windows server ?
my both linux and windows has 2 network cards each.
basicaly it is vLan cards, each server has 2 network cards. one to main switch and one to local IP.
data will be going like below:
internet ----------------> eth0 --> linux --> eth1 ----------------> Windows.
i have vLans on both servers. And i need cross connection setup. And use linux in bridg mode / cross connection .
actualy i want to use Iptable rules to filter bad packets and forward good packets to windows. i have scripts how to forward packets to windows. but the problem is i dont know how to setup both servers in this topology. and how to make linux as bridge.
All it should be in transparent mode. Not in NAT mode.
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Jun 28, 2011
Does anybody know how to setup bridge interfaces on fedora 15 (VirtualBox4 interface and my LAN interface)?
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Mar 10, 2009
I have installed fedora core 9 and configures the ifcfg-eth0 script as below. my problem is the network is not coming up after reboot. after the reboot if i restart the network service(service network restart) network is coming up.
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Apr 7, 2009
Using Fedora 10, can anyone tell me how to setup the network scripts to create two network interfaces for vlan x and y. Both interfaces should obtain an ip from dhcp and both interfaces should run over eth0.
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May 25, 2010
Cannot activate network device eth0!"device eth0 does not seem to be present, delaying initialization".i cannot find my network card while i set up network configuration Now I use dual boot window 7 and fedora 9,I cannot find my network card in select network adapter while network configuration ,i have a network card Atheros AR8132 PCI-E fast Ethernet controller NDIS(620)and for wired in Accer laptop .
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Apr 7, 2010
I have installed CentOs 5.4 for Snort sensor , on the location where i intend to place the Snort sensor to listen for internal firewall leg (LAN) the switch doesn't support port mirror so i would like to create with 2 nic's bridge and pass trough the firewall internal leg my question how do i set such configuration.
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Jan 24, 2010
the wireless connection works very well when i start using. but once, after my sister took hold of my computer for a moment. the wireless don't seem to work anymore. i asked her what she did but she says nothing. she may ot may not be lying but that doesn't matters. what matters is i cant reinstall back the wireless network.when i first formatted my notebook to ubuntu 8.0, i followed an online instruction to enable wifi to work. it works perfectly well. so when the problems occured, i tried using the same instruction but it doesn't work anymore.
the wireless network does not appears under connection anymore.
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May 3, 2010
I am running ubuntu 9.10 on a dell xps m1530 laptop dual booting with windows 7. I am trying to achieve the following setup.
Wireless router <=========> Laptop <-----> Switch <-----> PS3
---- wired
==== wireless
Both laptop and ps3 have static ip addresses
The reason for this is I can connect to the internet on my ps3 through my laptop, and I can stream from my laptop to ps3 through wired connection. This works fine in windows 7 all I had to do was right click bridge connections. As I dual boot I don't want to have to make any changes to the settings on the ps3.
My interfaces are:
eth0 - wired
wlan0 - wireless
I installed bridge-utils and created a bridge and added both eth0 and wlan0 to it. However I could not get it to work. I have also tried internet sharing through network manager and firestarter.
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Nov 13, 2010
I setup a network bridge on pc A, with windows 7 installed on it, using windows default bridging tool. I connected computer B to computer A and Im trying to connect to the internet through the network bridge on computer A. Computer B (client) has two OS's installed, win XP and linux(tried with different distributions, didnt work). On windows XP everything is working, when i try to ping the router (after computer A) it also responds. On linux system nothing is working, and im not quite sure why.
I set up linux to receive IP adress from DHCP, which is router in this case (behind computer A), same way windows XP was configured. I decided to ask here, because I couldn't find anything on the net. My guess is windows-made bridge supports only windows-OS's but that would be kind of strange (its just a software bridge).
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Apr 26, 2011
I am trying to set up a network like this:
Internet <---> Router <---> Debian server <---> Windows PC
I want the server and PC to both have internet access, and I want to be able to forward ports from the router to the server. I know how to configure the server to give the PC internet access, but how would I assign an IP address to the server and give it internet access? I have used a very similar setup a few years ago, but I can't remember how to do this.
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Jan 28, 2010
On about 90% of bootups I find that network manager has disappeared from the notification area to be replaced by a random duplicate of one of the other icons (at random). If I remove the notification area and add it again all is fine.
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Jul 14, 2011
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Sep 21, 2010
I have reinstalled 10.04 several times and have the same result. After the install everything works and looks great. Then after the first power down and reboot the top menu bar and bottom panel are gone.
The desktop wallpaper (bare of anything) is there, still responds to right-clicks, etc, and the system seems to function, but the menu bar is missing. The extents of the desktop are still the same, so it's not the desktop extending outside of the screen display area (mouse doesn't disappear over the edge).
I can alt-F1 to get to the menu bar menu items, and they function - appearing from the top edge of the screen, but cannot activate them via mouse. I have reinstalled several times and this consistently happens every time. I had 8.10 on this box and it didn't do this. I reinstalled 8.10 and it was fine again, and then back to this with reinstalled 10.04. The 8.10 was a virgin install and I reformatted the drive on every install so there's no legacy crap clinging on.
I can use ctrl-alt-del to shut down/restart/etc., and alt-F2 gets me the command line. All seemingly functional.
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Jan 5, 2011
I had a thread earlier asking for help installing Ubuntu Server to my homemade atom based NAS, but I gave up on that (GUI's are more helpful to me ) and so now I'm running Ubuntu 10.10 Desktop 64bit edition.Last night I was finally able to get mdadm set up. I have two 1TB disks set up in RAID1 config. I used
Code:
sudo mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sdb1 /dev/sdc1
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[code]....
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