how to configure a bridged connection in where we are required to enter username and password.I am currently using PPOE type connection of my modem(A Nokia siemens ADSL modem).
View 3 RepliesI am trying to get a bridged connection to work in centos
Here is the network diagram [url]
There are two interfaces in linux system , they are bridged and connected to the windows system I am not sure if I need to enable STP in the bridge or not?
I have a bridged network setup ifconfig -a gives following output
Code:
br0 Link encap:Ethernet HWaddr 00:26:b9:82:42:38
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::226:b9ff:fe82:4238/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:150779 errors:0 dropped:0 overruns:0 frame:0
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3) What are these vmnet1,vmnet2,vmnet3,vmne4 which I see above. I used kvm and virt-manager to create a bridged setup.
I have installed qemu/kvm and created a Bridged network connection which works just fine(Windows 7 VM won't work in NAT mode.)
But when I try to use NetworkManager it says that I have no network connection because the network isn't managed, (I set the settings in ifcfg-br0 and ifcfg-eth0 to be managed)
The real problem is that now I can't use my VPN connections (I have many) in NetworkManager.
Is there a way to have both of these pieces of functionality?
I am using FC14
I have virtual box installed which automatically installed bridges for my network adapters. This has always worked fine. I'm attempting to set up a static IP for this machine now. I use NetworkManager, and the physical connection (eth0) is set to static IP of 0.0.0.0, and the bridge (br0) attached to eth0 was set to DHCP. I changed br0 to my desired static IP and lost net connectivity (I'm talking about the host, not the virtual machine - I'll get the host working first). Re-enabling DHCP restores connectivity. So I don't know what the problem is, but I am unable to assign a static IP to the bridged connection. Do I have to do this differently? Do I need to remove the bridge so I am using just eth0 again, assign the static IP to eth0, and then re-install the bridge? I haven't tried that yet because a) I don't know how to remove & reinstall the bridge, because it was done automatically by Virtual Box installation, and b) I could probably do that if I had the time figure it out but right now I don't.
I set up a static IP on wlan0 on another machine using Network Manager and it works fine. That machine also has Virtual Box installed but for some reason doesn't have the bridged connections. (Perhaps because it runs Ubuntu, not OpenSUSE, if that makes any difference)
I posted this in the Networking section, but should probably be over here. Couldn't move it. I have a transparent proxy in place. I have Webmin installed on the server. Is there an app that can monitor bandwidth in real time? Also run reports? I have SARG installed, but seems to only monitor HTTP traffic, I need to monitor all traffic. I have a bridged connection, but monitoring the outside interface is fine too.
View 5 Replies View RelatedI am unable to make my VPN connection to my university work correctly. Before, it would work some of the time without changing any settings. Now it never works. Unfortunately my institution does not provide support to linux users (outrageous!) so I'm on my own. Here is a link to the configuration instructions for windows and mac users, I've tried to configure mine based on this information but I have not been able to do it.
View 2 Replies View RelatedHere's my setup: Slackware 13.1 External IFace = eth0 / DHCP (assigned from comcast) Internal IFace = eth1 / 192.168.0.0/24 I've made it connect/authenticate, but I can't get anything to route through it..
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Really wanting to try and get this setup to where all computers on my lan are forced through the VPN, i've tried most of all things I've googled, and no real luck.
How to set up a bsnl bridged internet connection wth username and password in kubuntu 10.10 ? i tries pppoeconfig but it didnt give me any solution.
View 4 Replies View RelatedI virtualised backtrack on windows 7, and set up the network connection to bridged mode, but my networking still fails.
dhclient eth0, outputs many DHCPDISCOVER but no DHCP offers.
My brother has a Ubuntu server attached to a LAN with Windows PCs. I set up an openVPN tun service on the server, let's call this VPN1, so that I can connect remotely from my Ubuntu desktop. The server has one NIC and the LAN has a router that is the gateway to the internet.
My brother would like to remotely access his windows network when roaming with his Windows laptop.
Therefore, I would like to set up a second VPN service, this time tap, that is bridged with his LAN. Let's call this VPN2.
The LAN subnet is 192.168.1.0/24. The internet gateway is 192.168.1.1
The NIC has a fixed IP set by the router of 192.168.1.150
How do I set up VPN2 so as not to trash VPN1? That is, if I bridge eth0 with tap0 how will that impact VPN1's tun0 that is using eth0? Do I need a separate NIC for the VPN2 bridge?
I want to configure socket timer to release socket(port) once the connection is terminated. Do we have something in Linux OS to configure this delay to release socket?.
Any command, link or man-page anything will be helpful.
I browsed a lot but unable to find it.
I currently have one of our clients set up to use a routed VPN for their 5 laptops to connect to the server remotley. And this works brilliantly. They are about to bring on a remote office that will need a VPN connection back to the main office, so I was going to set up a bridged connection between the two sites (and possibly more sites in the future).
So my question is whats the best way to go about this? Can I have one instance of OpenVPN running with tun0 set up for a routed connection to the laptops and add a second tun (tun1) to the config that will be for the bridged connection between the sites? Or am I going to have to run multiple instances of OpenVNP, one for the routed and another for the bridged?
If routed and bridged have to run in seperate instances, will I have to add another instance for each new remote site that needs a connection? Can a bridged config connect to multiple sites, or have multiple tuns in the one config?
I've set up bridged networking so that I can have KVM virtual machines that are accessible from outside the host. I can access both the Host and my VM from other machines on the local network, and from the VM I can access the internet but from the Host I can only access my local network. Since I can access the local network and the same issue applies regardless of whether I use host names or IP addresses I suspect it's not picking up the gateway properly.
How do I go about allowing the VM host to access the internet while still having bridged networking so I can access my VMs?
What I've checked so far:
Ping Google DNS (8.8.8.8 )
From Host: Destination Host Unreachable
From VM: Suceeds
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The issues are only with accessing things outside of my subnet. I can access other machines on the same subnet from the Host just fine.
I have two eth interfaces bridged in CentOS, one of these interface is connected to a Windows Server, I can do a ifconfig down on both these interfaces and there is no change of status at the windows side, I don't get the message that 'network cable has been unplugged'
Is this behavior normal ? I think when you shut an interface than you get the interface down message at other end ? And what becomes the status of the bridge if I shutdown one of its interface ?
I have an Ubuntu 10.10 host running in VirtualBox 4.0.8 r71778, and I need to setup a LDAP authentication network between two VM's: a Maverick-based distro and Ubuntu Server 11.04.
Screenshot of the two running perfectly fine:
[URL]
Using NAT, I can have the two VM's up and running on VBox, but they get the same IP (10.0.2.15).So I googled it and quickly found out that I needed to change the VM's network interfaces to Bridged Networking. So I tried that. Here's two screenshots of the default configurations:
1- Ubuntu Maverick based distro:
[URL]
2- And here is one of the Ubuntu Server:
[URL]
(I'm Portuguese, that's why there are mixed languages in the UI)It's pretty stupid to explain like this, but whenever I try to start one of those two using Bridged Networking, I get a black screen full of errors (I can't take a printscreen of that, so I took a bunch of pictures - yeah, it's lame, I know ). Then, I have to press the power button to shut down my host, and restart the pc.Here they are:
[URL]
Where I think the problem is:
[URL]
My host is currently running Linux kernel 2.6.38-10.I have dkms, linux-header-generic and build-essentials installed (and the VB extension package too)And my host is a laptop, connecting to the internet using the router my ISP provided me.How can I solve this? Is this some kind of bug regarding 2.6.38-10 kernel?I don't have other pc's to test my LDAP authentication, so I needed the two VM's to have different IP's.
Newbie Question: How do I setup networking on openSuSE 11.4 on an HP Proliant DL385 G7 with 4 NICs to host Windows 2008 R2 on Xen? I've installed openSuSE 11.4 with all the patches (and most of the server patterns - Mail and News, LAMP, LDAP, Samba, etc.), and I've installed Windows 2008 R2 in a Xen virtual machine. I'm having problems configuring the 4 NICs eth0, eth1, eth2, eth3 are "bound" without an ip_address as br0
eth0 connects to my ISP - currently through a private LAN - It connects directly to the router with static IP 192.168.0.105 Eventually, one of the other NICs will serve ip_addresses via DHCP to a separate LAN (for use in an office setting), and eth0 will be set with a static IP from the ISP That means, eth0 will be static to the ISP, and the other NICs will attach to a switch serving private ip_addresses in the 192.168.0.xxx range.
Currently, I have br0 unconfigured and eth0 static. I have configured eth0 in the External Zone and br0 in the Internal Zone in the firewall, and all the correct ports are opened (afaik) I have enabled masquerading. Hostname, Domain (workgroup), DNS Server addresses and IPv4 Gateway are configured.
Windows 2008 R2 (Guest VM in Xen) "sees" the other machines on the network, and "browses" the internet, although it will not download patches except intermittently. I have not tried connecting to it from the LAN Eventually, I wish to run Windows Terminal Server. openSuSE cannot "browse" the internet, though it initially did. What am I missing? I "think" I need routing or NAT, or I may have my bridge setup incorrectly, although I've tried almost every combination. Google says Xen should be setup with either NAT or a Bridged Network.
Output of ifconfig:
br0 Link encap:Ethernet HWaddr 3C:4A:92:76:B8:F2
inet6 addr: fe80::3e4a:92ff:fe76:b8f2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:953 errors:0 dropped:0 overruns:0 frame:0
TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:119849 (117.0 Kb) TX bytes:368 (368.0 b)
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I've got a Fedora 13 box running a bunch of VM's w/ bridged networking.
For some reason, every 10-15 minutes the vm's networking freezes and the vm's become unresponsive to pings and any other network traffic for 10-15 seconds. It eventually gets restored.
I don't see any error messages other than this occasionally on the host: eth0: received packet with own address as source address
Here's the two interface configs:
Im using fedora 13 x64 install from DVD. Has anyone else found problems using vmware 7.0.1 or 7.1. My bridged networking will not pickup a dhcp address, and even if I configure static my network will still not work, yet NAT works fine. Even configuring bridged to use a dedicated device doesnt work. Workstation worked fine on Fedora 12 but this seems to be a reoccuring problem in every other release.
View 5 Replies View RelatedBridged successfully but cannot access the Internet.I installed VMware in my Fc13,and installed XP sp3 in the VMware.I can access the Internet in XP,I set the network as Bridged with Fc13,but Fc cannot open a page,but I ping google.com,it can display: Code: Pinging google.com [64.233.183.104] with 32 bytes of data:
then nothing.I still cannot access the Internet in my Fc13.
I have been trying to set up bridged networking, but I keep failing. I am using Fedora 14 x86_64 KDE as host with qemu-kvm and SPICE. The plan is to install a windows server, a few windows clients and then rawhide as guests on that. Naturally I want to use bridged networking for the windows guests.[URL]..But those both leave the guest without internet access. Is it really this difficult, or am I doing it wrong(tm)?
View 3 Replies View RelatedI'm having trouble getting Fedora 15 to work with my em/bond/br configuration as it did in Fedora 14. I've got a bonding interface over em1 and em2, and then individual bond vlans (bond0.2, bond0.10, etc...), I then have a similarly named bridge interface (br0.2, br0.10, etc...) for kvm. Regardless of if I assign bond0.2 or br0.2 the IP address, I am unable to ping the gateway, but the native untagged VLAN (bond0, br0) has no issue at all.
To try to isolate this issue down to the switch or Fedora 15, I went with a plain em setup and configured em1, and em1.2 which works as expected. This issue has been plaguing me since Fedora 15 came out and I'm about to trash it and go back to Fedora 14 (Which didn't have this issue), but some of the new kvm features have kept me trying to get over this incomprehensible hump.
I'm configuring a CentOS 5.5 2.6.18-194.17.1.el5.centos.plus server in order to have multiple VirtualMachines in it. The throughput of the machine is at least 300KBps (yes KB), I configured two web servers one on the virtual machine and the other in the physical machine, the difference was: 300bps-3 KBps on the virtual machine, 230KBps on the physical machine.
The configuration is as follows:
Code:
If I attach the public ip address to the virtual machine this gets smoothly.
Just something that struck me while working on our virtual servers today.
I have bonded 3 NICs at the host in Ubuntu Server 8.04 LTS. They are using mode 0 for Round-robin. Point is to increase the speed/performance of all the servers, but mainly the fileserver. The fileserver is a virtual server running Ubuntu Server 8.04 LTS on VMware Server 2.0.
1) I noticed the NIC in the slave OS reported link speed as 1000 and Im unable to change it as the NIC (virtual one) doesnt support it. Does this not really matter, as the NIC doesnt exist, and it will run at higher speeds anyway? Or do I have to remove the bond on the host, bridge all 3 interfaces from the host to the slave OS, and then make a bond in the slave OS?
2) While at it, does mode 0 only increase performance on data being sent from the host or does it also increase the available incoming bandwidth?
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?
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Are there detailed instructions for Suse 11.2, anywhere, on installing a hardware dial-up modem and configuring it to get an Internet connection?
View 2 Replies View RelatedI am using Ubuntu 9.10. I just got a Linksys WRH54G wireless router. I want to protect my wireless connection by putting a password to it but when I enter the Router's default IP address (192.168.1.1) into my browser to open the 'Utility Welcome screen', the browser does not respond.
According to the Router's manual this is because PC' TCP-IP is not set to automatically obtain the IP address.
I recently bought a dell inspiron 14 n4010 and i've installed windows and Ubuntu 10.04 in it. The problem is that i'm not able to access internet in my ubuntu. I'm using asianet broadband connection and i'm able to get internet in my desktop when i connect the cable to the system. But when i did the same with ubuntu 10.04 in my laptop, i'm not able to get internet access. I'm able to access internet in windows though. But i hate using windows.
View 9 Replies View Relatedway of life and am having trouble accessing the internet.
View 6 Replies View RelatedI have 2 pc's at home, neither v flashy but both more than capable of running this. Previously I had them both running XP SP2. One pc has 2 NICs in it and the second only one. So, PC1 (now running Ubuntu desktop 10.04) has the 2 NICs installed ...
1) A realtek NIC which is on 'eth1' and from which I receive internet connectivity from the router of this shared house. (2 other people connect their PCs to the internet via this router.)
2) A 3com NIC on 'eth0' which I have connected (using a crossover cable) to the Intel 'PRO100 VM' NIC on PC2.
Admittedly this took me some time to get half working. Currently I can connect to the internet through 'eth1' OR to PC2 via 'eth0' BUT NOT AT THE SAME TIME. However, If I disconnect one (by left clicking on 'disconnect' under the top of screen menu bar, then the other one will immediately work ... and visa versa.
I had this working when both PC's were running windows XP but now in trying to educate myself further I have installed Ubuntu on PC1 and am attempting the same thing. I refuse to accept that as alot of these thread responses state, that it 'can't be done'. Quite clearly it can be done since the physical connections and hardware are no different, its just about ensuring that the protocols are all correct and that I haven't done something stupid.
I am very keen to learn more about computer networks and equally keen to educate myself in the ways of Linux, in fact I am studying to gain a network qualification as we speak but at this stage its still a little confusing. I have learned an awful lot about the fundamentals of networking but the 'hands on stuff' is where I really need to test myself.