Bridging is a forwarding technique used in packet-switched computer networks. Unlike routing, bridging makes no assumptions about where in a network a particular address is located.
0
votes
1answer
12 views
DHCP server on bridged connection
I want to put DHCP server on Ubuntu server to listen on 10.0.0.1 (internal network).
I also need to configure OpenVPN server on Ubuntu server (DHCP is going to lease addresses to OpenVPN clients), ...
0
votes
0answers
23 views
No HTTP connectivity in vbox guests with bridged network
I'm running Ubuntu 12.04 Server x86. Network connectivity is on eth2 for the host server (the 10ge card). I installed VirtualBox 4.2 using the downloadable deb package from VirtualBox's website. ...
6
votes
0answers
70 views
Why do I need to assign static ip address to the bridge and not to the physical interface? [duplicate]
I have bond0 with two physical interfaces in it.
Normally I used to assign static IP address to this bond0 to set up internet connectivity on the server.
Now, because of LXC virtual guests, I had to ...
0
votes
1answer
83 views
KVM guest has a wrong outgoing ip address
I have a KVM host with a bridge configured on eth0 that has a public ip:
auto br0
iface br0 inet static
address xx.xx.aa.111
netmask 255.255.255.0
network xx.xx.aa.0
broadcast xx.xx.aa.255
...
0
votes
0answers
31 views
if there are 2 NIC on the same machine, can a tcp client on one NIC connect to a tcp server on the other NIC?
I use tun/tap to create a tun NIC tun0 with IP 10.10.10.2,
and I have a real NIC eth0 with IP 202.112.34.49
then I run a tcp client which binds its socket to 202.112.34.49 and a tcp server binding ...
0
votes
1answer
165 views
Can't get network bridging to work
I'm trying to make network bridging to work on a Debian squeeze (I'm experimenting in order to make a QEMU/KVM virtual machine that will be visible to the outside network as if it were a distinct ...
0
votes
0answers
12 views
Virtual Box Router - Windows Host, Linux Guest [migrated]
I currently have Ubuntu Server running as the Guest OS in Virtual Box on a Windows 7 Host.
The Ubuntu Server gets its IP from DHCP and is Bridged to the my Network Adapter.
I've disabled Internet ...
0
votes
1answer
14 views
bridge on openVPN client
I have some problem with setting up what i call a "remote entry point" (i'm sure ther is a real name for this)
First things First : Here is my setup :
...
1
vote
1answer
590 views
Transparent Bridge on Windows XP
Bascially i need to set up a configuration like the following:
http://wiki.wireshark.org/CaptureSetup/Ethernet#Capture_using_a_machine-in-the-middle
I have a computer with windows XP and 2 nics. I ...
1
vote
1answer
949 views
ClearOS transparent firewall and web proxy mode possible?
In other firewall software packages I have seen the ability and am hoping it is possible with ClearOS to put it in to transparent or bridged mode where the device sits physically between the client ...
1
vote
1answer
74 views
Changing Linux Layer2 forwarding decision?
Are there tools to define in Linux something similar to Policy-based Routing, but on Layer2 level? Usual Linux bridge uses destination MAC to decide, which interface to send frame to. Can this ...
2
votes
2answers
2k views
Proper network configuration for a KVM guest to be on the same networks at the host
I am running a Debian Linux server on Lenny. Within it, I am running another Lenny instance using KVM. Both servers are externally available, with public IPs, as well as a second interface with ...
1
vote
2answers
1k views
Use MikroTik Bridge as a Public IP Firewall for Public Hosted Servers
We want to do this:
Internet<->MikroTik in Bridge Mode with Firewall Filter<->Hosted Server
The primary objective is to allow RDP and FTP in from the outside but block everything else from ...
1
vote
1answer
879 views
Centos/OVH: public IP on KVM virtual machine
Since a few days, I'm trying to configure my KVM vm to have a public IP address, without any success.
First, I'm on OVH, and you need to know they don't allow networking from different mac addresses. ...
2
votes
1answer
60 views
Linux: How to simulate several IP- and MAC-Addresses for networktesting in one linux box
I want to test a network with one linux-box which should get 100 different IP-Addresses, each with an own MAC which should be used as source MAC-address when communicating to other devices.
I've ...
4
votes
2answers
5k views
KVM network bridge with two NICs
Greetings,
I'm trying to set up bridged networking with KVM and am getting nowhere. There are docs and tutorials on the subject, but they all seem to conflict or don't provide enough info. I was ...
0
votes
0answers
36 views
Network bridge on windows server 2008 not working [closed]
I have the following problem:
I want to bridge 2 networks on Windows Server 2008 R2.
I do this by selecting both interfaces and pressing "bridge connections".
But after this I am not able to access ...
1
vote
1answer
32 views
openvpn (tun0 + bridge) : Comunication bridge --> tun0 works but not the opposite direction
My network is composed as follows:
Host A with ip 9.x.x.x and vpn ip 192.15.206.x (openvpn client)
Host B with ip 9.x.x.x and vpn ip 192.15.206.1 (openvpn server)
this host has a bridge br0 with ip ...
2
votes
2answers
33 views
Bridged network connection not working on Ubuntu VM
I am in a corporate environment and there is 802.1x authentication set up which is using my windows credentials + domain to authenticate. Setting up that information for my connection in the VM only ...
2
votes
3answers
929 views
KVM work with bridge network problems
I try to configure bridge network for KVM(refer to http://www.linux-kvm.org/page/Networking), and it worked for Guest OS, but I have two problems with my Fedora host OS:
1、I can not access internet ...
3
votes
2answers
2k views
Bridging LXC containers to host eth0 so they can have a public IP
UPDATE:
I found the solution there:
http://www.linuxfoundation.org/collaborate/workgroups/networking/bridge#No_traffic_gets_trough_.28except_ARP_and_STP.29
# cd /proc/sys/net/bridge
# ls
...
0
votes
1answer
45 views
VPN laptop as proxy gateway for Intranet computers truss bridge/bypass
I have a Windows 7 Enterprise VPN laptop to access my client's VPN network. During VPN session the laptop can not accept any request from my Intranet even if I open any door using Windows Firewall ...
4
votes
1answer
680 views
OpenVpn bridge interface does not respond to incoming packets from outer network !
We are trying to set up a roadwarrior vpn setup with openvpn. We want the people to be able to connect to our network via openvpn. And we want them to be able to see and connect to the machines in our ...
1
vote
0answers
16 views
Changing the mac address in a libvirt xml config file breaks network connectivity for the guest
I'm using Xen with libvirt and trying to set it up on a bridged interface. I am able to install an OS and everything works as I would expect. If I save the xml output from "virsh dumpxml guest", edit ...
1
vote
0answers
26 views
Network traffic is not being forwarded from a VM to the network using a bridged interface with Xen + libvirt
I'm having trouble getting network access from a VM that I'm running using Xen and libvirt. I've been trying different things and reading similar posts online for a couple of days but I'm really stuck ...
-2
votes
2answers
62 views
Linux Bridge allowing TCP but not UDP
I am using a linux bridge for monitoring some traffic on two vlans. I created two bridges br30 et br40 for each. My problem is that the TCP traffic make it through but not the UDP one. I thought of ...
-1
votes
1answer
289 views
OpenVPN server on Windows 7 - How to route specific IP addresses to clients?
Okay, so I do not have a strong background per se in computing, nor networking, and I'm really just starting to learn this stuff now, for a relatively small family business of ours. It is rather ...
1
vote
2answers
67 views
Disable IP on bridge
OK, I'm running libvirt on my server, I've only one interface, in order to use public IP in my VM I need to setup a bridge, everything OK so far.. But I don't want to setup a IP address at bridge ...
0
votes
0answers
31 views
OpenVPN bridge failed to forward packet
I have a pair of OpenVPN bridge working for my school. The bridge works well, it did bridge ip traffic between the 2 sites.
My problem is, if a user turn on a PC after the bridge has already started. ...
-1
votes
1answer
40 views
Debian bridged wifi connection doesn't start with system [closed]
I have t debian pc which is used as router.
I'm using hostapd for creating wireless acess point, and i've bridged ethernet and wifi using brige-utils.
My /etc/network/interfaces
auto lo
iface lo ...
0
votes
0answers
66 views
Routed libvirt/KVM network: response packets never reach guest
I'm desperately trying to get a routed networking up and running, but having extreme trouble with the setup.
My Dedicated Server has 2 public IP addresses in the same subnet. I want to use 1 IP for ...
0
votes
0answers
23 views
Route traffic through internal (VDE) bridge
I have two NICs configured, let's say eth0 with IP 10.0.0.1/24 and eth1 with IP 192.168.1.1/24.
IP forwarding is enabled, rp_filter is disabled.
I've created 2 tap interfaces and bridged them with:
...
9
votes
3answers
20k views
VMWare networking mode (NAT or Bridged)?
I am running Windows 7 within a virtual Machine from my Mac. I use Windows 7 for Visual Studio primarily and also to host a dev install of IIS. There are two things I need and I am not sure what ...
1
vote
2answers
2k views
KVM/Libvirt bridged/routed networking not working on newer guest kernels
I have a dedicated server running Debian 6, with Libvirt (0.9.11.3) and Qemu-KVM (qemu-kvm-1.0+dfsg-11, Debian).
I am having a problem getting bridged/routed networking to work in KVM guests with ...
0
votes
0answers
21 views
lxc bridged interface random connection losses
First, I create the bridge:
brctl addbr mybr
Then configure it:
ifconfig mybr 10.2.0.0 netmask 255.255.0.0 up
Then in lxc.conf, I have:
lxc.network.type = veth
lxc.network.flags = up
...
1
vote
0answers
80 views
debian KVM - network bonding fails with vlan and bridge
i have a Debian 6 system configured with 2 NICs
these NICs are used on a bond (bond0) which is used by bridge that require to use VLAN.
i can get connection between guests running on VLAN10 but it ...
-2
votes
1answer
26 views
connect to tap interface [closed]
Im working on proxy
I have this setup
LAN---[eth0 tap0]
LAN = 172.16.0.0/26
eth0 = no ip promisc
tap0 = 192.168.0.1/24
I want to communicate LAN with tap0 ?
0
votes
1answer
61 views
Xen guest - cannot get network connection beyond the host
I've just installed a XenServer 6.1. It came with a standard configuration:
network 0 connected to NIC 0.
I created a VM but I can't reach any network beyond the host.
From the VM (172.18.32.20), I ...
1
vote
2answers
73 views
How do I bridge multiple physical ports in ESXi 5.x?
As the title says, is there a way to bridge multiple physical ports in ESXi 5.x such that they are not load balanced? I essentially want each physical port to be "plugged" into two separate ports on ...
0
votes
1answer
30 views
Creating a bridge for Xen
I am currently stucking at creating a bridge for Xen. My current interface file looks like this:
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
...
1
vote
2answers
62 views
Default gateway and bridged interface
I have slackware based server with openvpn bridging, this is my settings of interfaces:
root@senior:/# ifconfig
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet ...
0
votes
0answers
35 views
how to carp two interfaces on same node?
I have this CentOS machine with 2 interfaces.
eth0--> br0 (.10)
eth1--> br1 (.11)
Although part of the same network, each interface is being fed from a different switch. I use each bridge in ...
0
votes
0answers
24 views
Virtualbox: Port forwarding to an IP other than the hosts fails
I've got an Ubuntu server image running within virtualbox using NAT.
I've started LXC containers within that ubuntu server image and configured bridged networking so they all have an IP on the same ...
0
votes
1answer
89 views
how to connect two different lans [closed]
I have in my office two different LANS with two different ISP. Lan A is faster than Lan B.
We want to share files and printers and everything as if it was only one LAN, the thing is that we don't ...
0
votes
0answers
72 views
OpenVPN: Run 'bridge-start' on boot before starting openvpn service (Ubuntu)
I've got OpenVPN working properly on my server, using bridge-start and bridge-stop scripts to create and remove network bridge, respectively.
How do I set these scripts up to run bridge-start at boot ...
2
votes
1answer
145 views
VirtualBox bridged adapter can ping but can't curl
There is a delicate server running Ubuntu Server 12.04.2. There are 4 useable IPs for this server: A, B, C, D. The server itself takes A.
The server is now running two VirtualBox guests, both with ...
0
votes
1answer
62 views
Can I bridge between two different networks?
I have a VirtualBox VM which has:
eth0: 10.0.2.15/24
default-gateway: 10.0.2.2/24
Within that VM I have 2 LXC containers (i.e. two other virtual machines)
VM1 - eth0: 10.50.50.50/16 (connects to ...
1
vote
3answers
278 views
Bridging eth0 to wlan0
I'm trying to create the followig setup:
+----------+
| Wi-Fi |
+----------+
...
1
vote
2answers
865 views
VMWare Player guest does not re-aquire IP on bridged interface after host loses and re-acquires network connectivity
I am running a Ubuntu Linux image in VMWare Player on my laptop. The host is Windows XP.
There are two network adapters configured in VMWare Player - one is host-only and the other is bridged. ...
3
votes
2answers
154 views
FreeBSD 9.1; bridge0 and default gateway issue
I've got a FreeBSD 9.1-RELEASE-p1 system with three nics, I'm using: igb0, sfxge1 and sfxge2. igb0 used for internet access and is default gateway. Other two nics, I need to use to create bridge0.
...
