Fedora Networking :: Configure A Network Bridge To Start On Boot?

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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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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Fedora Networking :: Network Interface Will Not Start On Boot?

Sep 6, 2009

I'm a newbie on Linux and trying to find my feet so please be kind.I have installed vmware on my XP laptop and have installed fedora core 9. Network setting on the VMware is set to bridged. My interface eth0 which is using the wireless does not start on boot. I have to run ifup ifcfg-eth0.The file ifcfg-eth0 had onboot=yes and NM=no, so i changed it so that the NM=yes.However this does not resolve the problem at all. I have put the file back to its original configuration and I have disabled network manager and have had no luck

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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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Jun 27, 2011

How would I configure my box to connect to a modem in bridge mode?

I have a server at home that im migrating over to be the default-gateway/router. I have everything else setup (dns,dhcp etc) now just need the ppoe part, or so i beleive?

I have two interfaces. eth0 (lan) and eth1 ready to connect to the modem.
The modem is in bridge mode ready to go.
What is my next step? Are there any good guides, I didn't find any.

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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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Nov 27, 2010

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Feb 21, 2011

I set up a virtual bridge for a virtual machine (qemu-kvm) using a qemutap interface:

Code:
# brctl show
bridge2 8000.0022648a3dcc no eth5
qemutap2
I can ping and ssh to the server ...
Then I try to copy (scp) a file (2.8 M) to the server and, near the end, the copy stops and the server stops responding to ping and is not able to ping nothing except itself.

"ifconfig down ; ifconfig up" and the server is on line again.

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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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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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Ubuntu Networking :: Wireless To Wired Network Bridge

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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Ubuntu Networking :: Connecting To Internet Through Network Bridge

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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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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Fedora Networking :: NetworkManager Won't Configure Network Until Login

Jan 9, 2011

I'm on F14 and can't seem to get NetworkManager to behave. I seem to remember being able to start my machine and see my static address configured right after boot. For some reason, that's no longer the case. When I finish a boot, I'm not getting any address until I log in. I've tried editing the ifcfg-eth0 both by hand and by the system-config-network. I've played with the "Available to all users" checkbox on both the nm config applet as well as the system-config-network gui. I can't seem to get it to behave predictably and give me my static without having to be in a gnome session.

Here's my ifcfg-eth0 from /etc/sysconfig/network-scripts

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Fedora Networking :: To Configure Network In Rescue Mode ?

Aug 16, 2011

I made a big mistake. While logged in as root i deleted the /bin directory by mistake. I cannot boot up now...I tried to re-install with the upgrade option...Did it partly but it does not go to the login. I tried a rescue operation and have gone into /mnt/sysimage...However I do not know how to copy my data files over the network to another computer. If I could do that it would be great...I can then backup my file and reinstall.

However I do not know how to setup the network in rescue mode..

Agter going into the network option ...It gave 2 places where I could enter the values ipv4 .and ipv6...I tried entering the old IP address in the first oprtion ........./....Its prompting for some entry to be put after the /. I think its a 3 digit input. Not sure what has to be done.with namesserver and default gateway....I have a small dlink hub and normally (when the system was running) I just needed to go into network manager and enter the machine ipaddress, subnet mask 255.255.255.0 and some value for the default gateway which was not really there....It worked, i could remote connect with another computer in my LAN. How do i enter the 255.255.255.0 in rescue mode?

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Jan 18, 2011

I set up a bridge device but I can not figure out how to pass parameters into the ifcfg-vmbr0 in particular I need to pass:

maxage
ageing

fd and stp seems to be passed by DELAY=0 and STP=on the others? I have not found anything in the post, tips, docs how could I do?

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Fedora Hardware :: Use A Bridge So A KVM Virtual Machine Can Be Exposed Directly To The Network?

Jan 5, 2010

I'm having issues with my GigE Marvell NIC. The problems have started recently. Anytime I push network bandwidth over ~9MB/s, I loose all network connectivity. Stopping the network, rmmod'ing and modprobe'ing the sky2 module and then starting the network again does not resolve the issue (even though eth0 dissapears and then comes back). The only non-standard configuration (as far as desktops go) in my network is that I use a bridge so a KVM virtual machine can be exposed directly to the network. I'm currently testing the problem to see if it exists outside of the bridge.

[Code]...

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Fedora Networking :: Allied Telesyn USB Modem AT-AR206 - Configure Network To Use DSL Line

Jun 9, 2009

I have been using an ethernet ADSL Westell modem for years and would like to upgrade to a newish Allied Telesyn USB Modem AT-AR206 in Fedora Core 10. The modem power goes on when plugged into my pc and lsusb shows that it has been recognized with this:

Bus 002 Device 003: ID 1110:9022 Analog Devices Canada, Ltd (Allied Telesyn) ADSL Loader

I used system-config-network but don't have the option of adding this new hardware.

How do I configure my network to use my DSL line?

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Fedora Networking :: Getting The Wireless Network To Start Automagically?

Sep 27, 2009

Where I can get my wireless network running by typing the following lines of code:

Code:

But I have to do this every time I boot the machine. Ideally, I want the machine to do this on it's own at startup.

Also, I'm totally new to linux and I don't really understand what the 1st line of code is doing? The 2nd is just to check that the 1st line worked, and the 3rd does the settings for the wireless network I'm connecting to.

If you want to get into why I have to do this every time, then look at my original thread. But I started this new thread just to find out how I can get these lines of code done automatically at startup.

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Fedora Networking :: Two NIC's Can Be Bridge Together Even Though They Are The SAME Subnet?

Aug 9, 2009

I have 2 NIC's in a box. One of them is external and doesn't matter for this question I don't think.

The other NIC is 192.168.100.3. It hosts an iSCSI Target and SMB Share on my LAN. It's works great.

I have another PC that has NIC at 192.168.100.101 and it hosts my DHCP (Scope: 192.168.100.5-25) server for my LAN.

I have a hardware firewall at 192.168.100.1 and it serves inet to the LAN on a different external connection.

So...

I currently have a WAP (cheap p.o.s. netgear router in WAP mode that keeps overheating). I want to eliminate the WAP device and add a WiFi NIC to the Top PC above.

So, on the first system I would have:

NIC 1: External IP and External Gateway
NIC 2: Static IP 192.168.100.3
Proposed WiFi NIC 3: Static 192.168.100.4

Question:

If I bridge NIC 2 and NIC 3 like this:

# brctl addbr br0
# brctl addif br0 eth0
# brctl addif br0 eth1

Then I simply put the WiFi in Ad Hoc, will another WiFi in Ad Hoc (for example my laptop) be able to "see" 192.168.100.101 (DHCP) & 192.168.100.1 (Gateway) (via WiFI 192.168.100.4 through the bridge to 192.168.100.3 and on to the LAN)?

Also, can the two NIC's be bridge together even though they are the SAME subnet?

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Fedora Networking :: How To Setup Bridge

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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Jul 3, 2009

I want to connect my dataone broadband connection in bridge mode in fedora 7. As i am currently using a bridge connection through this modem (smartAX MT882) in win XP, i want a bridge connection in fedora 7 too to access the internet from linux. I have gone through some forums discussing this issue. somewhere i have found the option "adsl - setup" and tried it in my fedora 7. But it is showing the message "adsl- command not found" on this issue. I need a detail step by step procedure for brigde connection using datone in fedora 7.

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Aug 3, 2009

I'm trying to set up a Linux box with three ethernet interfaces as a bridge where I can do some packet filtering. I don't want this box to have any IP stack, packets that are allowed through the filter should be forwarded without changes just the way a switch would do it. I have build a kernel with ethernet support but no IP stack. It detects my interfaces, and I can bring them up with the ifconfig or ip commands. But when I try to start a bridge with brctl I get this error message:

can't setup bridge control: Address family not supported by protocol

A google search for that error message gave me no results at all. The command I used was "brctl addbr br", which does work on a full installation. Does brctl require IP support in the kernel? That would be a bit odd I think, since brctl doesn't do anything IP related, everything it does is at lower layers?

Does anybody know what the above message means, and what I might have been doing wrong?

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Fedora Networking :: Cannot Forward Internet Over Bridge?

Feb 27, 2010

What I am trying to do: bridge 2 NICs in my linux box eth0 connects to linsys router (which in turn connects to internet) eth1 connects to Xbox 360

What I did:

Code:
ifconfig eth0 0.0.0.0
ifconfig eth1 0.0.0.0
brctl addbr br0
brctl addif eth0
brctl addif eth1

[Code]...

I'm sure this is a bridging issue and there is just some option I'm not setting correctly. Also, the reason I'm connecting the Xbox 360 directly to the linux box and not to the router is for traffic monitoring purposes. Note that all connections and functionality work perfectly when the Xbox IS connected through the router.

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Fedora Networking :: Iptables On Bridge Ports?

Apr 21, 2011

I'd like to pass all traffic between bridge ports via the FORWARDING chain, so I changed following sysctl parameters:

Code:
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1

[code]...

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Debian Configuration :: Configure Vino Remote Desktop To Start At Boot?

Jan 29, 2011

Kernel: Linux 2.6.26-2-686 (i686)
Compiled: #1 SMP Thu Nov 25 01:53:57 UTC 2010
C Library: GNU C Library version 2.7 (stable)
Distribution: Debian GNU/Linux 5.0.8
Desktop Environment: GNOME 2.20

Gnome comes with Vino Remote Desktop as part of it's package. I want Vino to run at boot so that I can login remotely.I am using VNC-4.1.3 for remote viewing. However, I can only view remotely once I have logged-in locally

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Fedora Networking :: F-12 Openvpn Server Does Not Start At Boot

Nov 23, 2009

This was working and stable on f-10 and f-11. Fresh f-12 install including openvpn, Copied /etc/openvpn/* to new system as root from working f-11 syatem. /etc/init.d/openvpn start (and stop) works as advertised HOWEVER when set to start at boot using chkconfig or Services Configuration program, openvpn does not start. I must manually start it every time. When started, it does work without error messages in the log.

I tried removing the NetworkManager-vpn module with no effect. Thought it could somehow be overriding the auto startup of openvpn at boot.

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Fedora Networking :: The Eth0 Device Does Not Start On Boot?

Mar 29, 2010

I just finished installing Fedora 12 on a rack mount server. I was modifying the /etc/sysconfig/network-scripts/ifcfg-eth0 file to use a static IP address, but now nothing works. The device does not boot on start up or anything.Currently, ifcfg-eth0 looks like:

Quote:

DEVICE=eth0
ONBOOT=yes
BOOTPROTO=none[code].....

The eth0 device does not start on boot; the server does not get the IP address, is not reachable over the network, and will not connect to the internet....

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Oct 5, 2010

I have a server that is on both a standard network and a virtual network, as follows: server1 attached to standard network server1 acting as Dom0 with two linux DomU guests (under Xen) I only have one network card. How do I configure server1 to have a different hostname on the standard network than on the virtual network? Here are the relevant network configuration files for server1:

/etc/sysconfig/network-scripts/ifcfg-eth0:1
DEVICE=eth0:1
BOOTPROTO=none
NETMASK=255.255.255.0
IPADDR=192.168.122.9

[Code]...

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