OpenSUSE Network :: Interface Configuration With Bridges?
Apr 20, 2010
I have a little problem with my Linux Suse 11.2 Server. I have unused network card with one port, and one with 4 ports and two used ports.
so->
eth1 is connected to a dsl-modem
eth2 is connected to a switch
i want my suse server to route between modem and switch.
Somehow, I can't go in the internet via eth1. I have to create a bridge br0 to go in the internet. very strange, when i delete the bridge and set eth1 as primary device, i have no internet.
How can i route from eth2 (10.x.x.x) to (eth1 or br0 (80.109.145.x) to Modem (80.109.145.1)?
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Feb 20, 2011
This past Friday as I was performing regular maintenance on my RHEL / CentOS servers, I ran yum upgrades on them and when they rebooted, I realized there were network issues and I could not longer access them via Ping or SSH. When I jumped on the console, I realized that it created a new 'ifcfg-eth0' file with none of my static information & the old 'ifcfg-eth0' file with all my static info had been renamed to 'ifcfg-eth0.bak'. It appears that the MAC address on the new file and the old .bak file are different and I have no idea why. I have no changed or altered anything on the server.
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Jan 29, 2011
Suppose I have both a hardwired and a wireless network connection active on the same system at the same time. Can I tell my browser which one to use? Can I tell other programs which one to use? Or do they choose for themselves> Or does some automatic system protocol select which one to use for them?
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Mar 15, 2016
Is this a problem of systemd or network-manager however when I started to see this alert I noticed the nm-applet doesn't start automatically anymore.
Code: Select allsystemctl status network
networking.service network-online.target network.target
network-manager.service network-pre.target
zagor@Debian-635:~$ systemctl status networking.service
● networking.service - Raise network interfaces
Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor prese
[Code] ....
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Jul 27, 2011
I have a ppp0 entry with post-up options like this
mapping ppp0
map none photon-plus motorola
map timeout: 12
## map init-time: 12 # for slow drivers
[code]...
If I comment those off then no such problem, hence some how ppp0 executed automatically and there is no [auto ppp0] any where. How can I stop this forcefully ?
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Oct 31, 2010
For Ubuntu 10.04, I can configure the network by "Network Connections". This configuration is done by doing the following operation sequences(System->Preferences->Network Connections->wired->auto eth0). Then I can connect to and browse the internet. If I type the command "ifconfig", I can see the ip I configured for eth0. Part of the content is as blow:
[Code]...
I think there should be other files that keep the eth0 configuration content. What are they?
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Dec 10, 2009
I have b43 wireless. In network Configuration on system->administration the interface it appears as inactive it appers in hardware also as b43 associated to wlan0 but i cannot have access to any wireless network. What i have to do to put this b43 to work.
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Feb 14, 2010
Last night while setting up wired & wireless connection in openSuse 11.2 Gnome version via YAST's ifup, I got wireless but lost wired connection (interface eth0). Dmesg shows that eth0 became eth1. I cannot get eth0 back. Is there any way to remedy this situation, eg. get info from the Ubuntu partition in my triple-boot laptop, without having to re-install openSUSE?
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Mar 1, 2010
I would like to use zypper to update openSUSE 11.2 through the Virtual Terminals (tty1 thro' tty6).
Network Interface is wlan0 (Wireless LAN, home network through a Router) that requires a password using WPA2.
My question is how to start wlan0 through the command-line ?
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Jul 19, 2011
I'm having difficulty setting up my desired network infrastructure. Here's the situation:
I'm currently using an Ubuntu box as homeserver to do everything from sharing internet (via NAT), over DHCP & DNS to filesharing and even virtualisation.
However, since my machine is capable of virtualising Astaro Security Gateway properly, I would like to transfer and split up responsibilities.
I want to have my Astaro fully responsible for the internet and act as the gateway, and along with that disconnect my physical box from the internet and put it behind Astaro (basically making it just a member of the internal network).
The difficulty I'm having with this is that Astaro is running virtually on the physical box, and I can't seem to figure out how to configure the external interface. It needs to be up for Astaro to be able to use it, but it should not give the physical machine access to the external network.
I'm thinking I could set it to manual and not give it an ip address, but I'm not sure on this.
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Sep 3, 2010
how can I go about adding an additional lo interface, like lo:0? I need to create this interface, give it an IP and set it to not arp, so this box can be behind a load balancer. Just copying ifcfg-lo and changing the requisite attributes did not work, got an error saying "Interface lo:0 is not available".
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Nov 26, 2010
In previous releases 11.2 and lower it was possible to load the dummy network module using modprobe dummy0. But this module is not available for 11.3. So how to setup a dummy network interface?
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Jul 18, 2011
I have a ppp0 entry with post-up options like this
mapping ppp0
map none photon-plus motorola
map timeout: 12
[code]...
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Mar 24, 2010
There is a cable plugged in to the second network card, but that interface is not configured. I'm getting a lotof "martian source" alerts because of this.If the interface eth1 isn't started because it isn't configured, why am I getting these messages?
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Jan 6, 2010
I have 2 laptop with opensuse 11.2. One of them is connected to the Internet through a Mobile Connection with a CDMA/EDVO modem on the usb port. I want to share the Internet connection with the other laptop through the WiFi interface of each of them. How should I proceed?
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Apr 20, 2010
I have a work desktop plugged into the work network. As I opened my firewall settings I noticed that it is turned off. My question is how should I configure it? I saw that the interface isn't assigned to any zone... I should assign to internal zone and open some port that I need in order to work? There are some guidelines for configuring the firewall?
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Sep 19, 2010
Where can I find set up information in order to share internet between my Ipod touch and my laptop? Laptop is connected to cable modem and has wifi interface (so no wireless router).
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Aug 11, 2011
I have installed open suse 11.4, gnome but no luck with wireless settings so far. kernel version is iwl3945 here is stuff that i did but it says "scan is deprecated"
linux-1f6k:/home/rajbanul # dmesg | grep firmware
[ 7.249018] tg3 0000:18:00.0: vpd r/w failed. This is likely a firmware bug on this device. Contact the card vendor for a firmware update.
[code].....
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Apr 14, 2011
I found multiple sites explaining how to add IPs to a network interface as virtual interface like eth0:0. However I can add IPs to an interface as well using the ip command: ip a a 192.168.2.2/24 dev eth0 What I want to know is how I can make this persistent on rhel/centos.
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Jan 24, 2010
I have a laptop running 11.2 with an internal Broadcom-based Wi-Fi card that's working fine. I'm trying to get 802.11n going with the WUSB600N. The USB ID on this device is 1737:0079. I believe this means it's a "V2" with an RT3572 chip.
No driver loads for this device when it's plugged in. If I do a "modprobe rt2870sta", a driver loads, and syslog shows "rtusb init" and "usbcore: registered new interface driver rt2870". But ifconfig -a doesn't show a new network interface. I've also tried building the RT3572 driver from the manufacturer's web site. It builds fine, and modprobe will load it, but I get the same results as the rt2870sta driver.
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Mar 27, 2010
I have a Canon MX860 network printer but I cannot get it to connect with my openSUSE 11.2 computer
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Jun 19, 2010
i am using intel hardware on this working on suse linux 10.2 . i am not able to configure the network card IP address I have tryed using dhcp and static both way. Currently intel DG41RQ network card is assembled in my system. by using command ifconfig i can see only lo but eth0 is not displayed their.
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Dec 12, 2010
I've just installed OpenSuse 11.3 on my new laptop but I've skiped the network configuration during the installation of system, but after that when I use the command : dhclient eth0 I'll be connected without any problem except when I reboot the system, I should retype the command to connect
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Feb 9, 2010
I'm trying to setup the following on a red hat 5 HP DL380 server: (2 bonds mapped to 2 xen bridges on 2 different networks)
interfaces bond xen bridge network
eth0ð1 -> bond0 -> xenbr0 -> 172.16.6.0/24
eth2ð3 -> bond1 -> xenbr1 -> 172.16.5.0/24
For IP bonding I want the OS be responsible for configuring the Network Bridges(not xend). So I've commented out any line starting with '(network-script' in the /etc/xen/xend-config.sxp file.
My configuration is as follows:
1) For Bond0:
[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
USERCTL=no
ONBOOT=yes
[Code].....
So the static routes that are configured, do not seem to taking effect.
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Jan 7, 2010
Running CentOS 5.4 x64. Have successfully bridged eth2 with br2 by following the instructions here: [URL]../Networking (under the RHEL section) Have been running several KVM VMs successfully via this bridge.
I am now trying to bridge additional interfaces by using the same routine. Each bridge is named to correspond with the ethX device its bridged with.
Example of ifcfg-eth0 script:
DEVICE=eth0
HWADDR=00:16:76:D6:C9:45
ONBOOT=yes
BRIDGE=br0
[Code]...
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Dec 5, 2010
im compiling from source on a old rig i have, its running ubuntu 10.10 server edition and i finaly got all the dependencys installed to a point where ./configure actualy worked. but whne i try and run make this is what i get.
[code]...
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Apr 7, 2011
I am totally new to Linux and have just installed ubuntu 10.10. After configuring the network interface via dhcp I started getting these messages that come in so frequently I can't configure anything else.
[87.186415] Stack:
Why I am getting this messages and more importantly how do I get rid of them.
The installation is on a VM on Hyper-V.
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Aug 30, 2010
today I tried to configure a network route to a host for testing my network interface. Code: route add 192.168.1.15 eth0 As I have to eth interfaces and both interface got their IP from DHCP (192.168.1.11 and 192.168.1.12) and are in the same subnet, I shut the other interface down:
Code: ifconfig eth1 down Then I tried to test the interface by doing a ping to 192.168.1.15.
Problem: When I unplug the cable from eth0 (and eth1 is still plugged) the ping still works. Somehow my linux (it's debian) powers up again eth0 and pings over this port.
How can I stop my linux doing this. I just want to have the route added only on the one interface - not the other. Is it maybe some case of a default-gateway?
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Aug 20, 2010
Config: Squeeze, 2.6.32-5-amd64I just installed squeeze and the network is up and nm-manager deamon if working but the Gnome applet doesn't seem to work as usual. It indicates no network although the network is available as indicated by ifconfig and route below. When I switch WiFi on, the nm works flawlessly. When I click on the applet icon it says "Wired Network: device not supported" (or similar, msg in french is
eth0 Link encap:Ethernet HWaddr 00:1f:e2:12:ea:d8
inet adr:192.168.0.182 Bcast:192.168.0.255 Masque:255.255.255.0
adr inet6: fe80::21f:e2ff:fe12:ead8/64 Scope:Lien
[code]...
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Dec 26, 2010
I have a laptop connected to the the net thru an adsl modem, when I switch off the laptop network interface,(thru system-config-network) the light of the laptop network card plugged in the router stays on ( green) where as in my pc, when i do the same thing , the light of my pc network card goes off in the modem
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