Questions tagged [network-bridge]
Questions about configuring and using bridging interfaces
303
questions
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17 views
Share wireless connection with fixed ip, on different networks
This question How to share a wireless connection through ethernet with fixed ip addresses? mentions how to share a wireless connection through ethernet with a fixed ip address. This is useful when ...
0
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1answer
30 views
No IP for host ethernet when network bridging with netplan
I used netplan on Ubuntu 20.04 Desktop and used a yaml file like the one on this website:
https://webby.land/2018/04/27/bridging-under-ubuntu-18-04/
However, my host doesn't have a ip now? How can I ...
0
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0answers
18 views
How to permantly disable snooping on bridge interface?
On Ubuntu 18.04, IPv6 networking might fail on bridge interface. Disabling snooping immediately solves the issue.
Following Where to put configuration to turn off multicast snooping on bridges? and ...
0
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1answer
400 views
Ubuntu 20.04 Netplan Bridge interface fails at boot
2 new Ubuntu Server 20.04 installs (1 on Hyper-V 1 on bare metal) fail to correctly start bridge interface at boot time. running netplan apply manually will successfully start the bridge (this is ...
0
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1answer
12 views
How do I save a virtual interface?
Say I create a virtual bridge interface and configure it as follows:
ip link add type bridge name br1
ip link addr add 10.10.10.1/24 dev br1
How do I make it so that this configuration persists ...
0
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0answers
31 views
ubuntu20 LTS GA : br0 keeps entering block state/then forward state
I updated from 18.04 LTS to 20.04 LTS (nice ...)
BUT
I have a bridged network br0 with two KVM behind it.
When I ssh to the IP address associatred with br0 it works then
15 minutes or so later the ...
1
vote
1answer
97 views
How to configure a bridge interfaces with DHCP in 16.04 LTS?
I have a computer with 3 network interfaces:
eth_adsl : Ethernet interface linked with my ADSL box
eth_local : Ethernet interface linked with my local network
wlan_local : WIFI interface for my local ...
0
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0answers
26 views
Connect to both private network and second pc directly
I'm trying to configure a machine (PC1) to be connected to my local network, and also have a direct connection to a second PC (PC2) plugged directly into PC1.
I ssh into PC1 and control it headlessly....
0
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0answers
74 views
Create bridge network for virt-manager VM to get DHCP IP from router
I am using virt-manager for managing qemu VM but I need to create a new bridge network with my WIFI adapter (wlp2s0) such that my VM can get the IP address directly from my router and not via NAT.
My ...
2
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0answers
40 views
Open Virtual Switch for bridging Physical network On Ubuntu Server 16.04
I am proof of concept for a client, the requirement are the following:
Stretch across 2 site the ERP network (stretched VLAN), this is needed due to dated machinery that have to talk to a particular ...
1
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0answers
21 views
Port forwarding Linux->Windows
My situation is the following: I have an old laptop with Wi-Fi and Ethernet onboard, windows PC with no Wi-Fi and my new laptop with both. I want to have remote desktop access from my new laptop to PC ...
0
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1answer
28 views
bridge ext_br not displayed in brctl show command
I have installed Ubuntu 18 in a baremetal server. As the interfaces are in ens3, ens4 etc..I mapped them to eth0,eth1 etc by following steps from google creating a file along with mac addresses in it.
...
0
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1answer
275 views
Why does host and bridge get an IP but not the virtual machine?
I'm struggling to connect my KVM virtual machine to the local network.
$ brctl show br0
bridge name bridge id STP enabled interfaces
br0 8000.4c5262097e59 yes ...
0
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0answers
43 views
How can I reset the network configuration of an Ubuntu partition that I can't boot into?
I've been putting a lot of work into getting my new home server set up in the way that I'd like. I went with Ubuntu for a familiar GUI and creature comforts that come along with it, but it's basically ...
0
votes
1answer
72 views
The loss of the internet connection due to the network bridge configuration
I'm following the tutorial on how to set up KVM on Ubuntu 18.04.
There is a line saying : "Before you can dive in and start making virtual machines, you're going to need to set up a network bridge." ...
0
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0answers
51 views
How to create bridge to use my wifi into VM?
I want to use my wifi and create a bridge for my VM, so my VM gets its own IP address from my router and I can easily ssh into it.
When I create a bridge with nm-connection-editor, I see only the ...
0
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0answers
97 views
Bridge link losing DefaultRoute and DNS scope after hot-plugging slave interface - why?
Using 19.10 (eoan). Here's a bird's-eye view of the setup:
netplan is set to put wlan0, eth0, eth1 in a bridge, br0
netplan statically sets br0 with DNS servers (and IP4 address, gateway4, etc.)
...
0
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0answers
17 views
Host cannot connect to Internet but Guest VMs can
Running 18.04 Ubuntu and I made a bridged interface to allow my VM to share the connection. However much to my surprise, the VM is able to fetch packages from the internet, but my host cannot anymore. ...
1
vote
1answer
258 views
How to troubleshoot network problems for virtual machines connected via a bridge (Ubuntu 18.04)
On my server (Ubuntu 18.04 LTS) I am running a KVM virtual machine which has been running fine for over a year or so but recently - probably because of some update - the virtual machine would lose ...
0
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0answers
15 views
Bridged network does not seem to brodcast, or I cannot ping an IP on a different subnet through the bridge
Scenario - I have an Ubuntu 14 system that I installed GNS3 on. My local subnet on eth0 is 192.168.2.30. virbr0 and virbr1 exists and are assigned 192.168.122.1 and 192.168.100.1 respectively. I am ...
0
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0answers
25 views
Docker kills OpenVPN connectivity
An OpenVPN bridge-mode server is running on my Ubuntu 18.04 home server. I use it to access my entire home network from my workplace, and to access my workplace PC (wp-PC) from any of my home machines....
1
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0answers
56 views
Bridging two interfaces together, forward traffic
I'm currently trying to create a setup that forwards traffic through a Ubuntu server to a switch, which then multiple servers will be connected to (each assigned an individual IP(s)) The Ubuntu server ...
0
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0answers
22 views
bridging wlan to KVM guests
running 18.04 I am trying to bridge a wireless LAN adapter so I can extend the network to KVM without routing any of the wireless traffic on the host - all using netplan.
here is my config:
network:
...
0
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0answers
213 views
Connecting Ubuntu Server to the Internet through Windows 10 laptop and Ethernet cable
I am running Ubuntu Server 18.04.3 ("Computer A") that is connected to a Windows 10 laptop ("Computer B") by an Ethernet cable. Computer B is connected to the Internet through WiFi. I am trying to ...
2
votes
1answer
71 views
Using a system with a Linux-based OS as bridge (for WIFI and ETH) [duplicate]
Context:
I have an old working system with an Ubuntu version correctly running on it.
The problem to solve:
The wifi where I work does not reach every place in the office. The idea is to use this ...
0
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0answers
33 views
Netplan apply breaks LXD network
Soon as I run netplan apply, all my LXD containers become unreachable via their IPs.
Then, I have to reboot the containers for them to reach the network again...
My LXD Profiles uses Linux Bridges, ...
1
vote
0answers
214 views
Connecting wireless interface to bridge - MAC addressing
I've been playing around with my network settings and tried to use hostapd to create a WiFi hotspot based on the virtual software access point virt1 (10.10.0.1/24). This does work flawlessly using NAT ...
1
vote
0answers
63 views
Create a WiFi access point that shares the Ethernet connection
I'm using Ubuntu Server 18.04 on a Raspberry Pi 3. The idea of what I'm trying to achieve is represented by the following schema:
Raspberry Pi
WiFi ┌──...
0
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0answers
33 views
passing untagged traffic
how can i pass untagged traffic from auxiliary bridge to virtio interface, Where we are sending mirror traffic from a switch to the aux port Then to the kvm virtual interface
Regards,
nnakhle
3
votes
1answer
1k views
How can i configure Tor with bridge and privoxy to proxy entire system
Accessing to some repository and website for sanctioned countries always is a big challenge for developers. I try to find the best and easiest way to proxy entire system in Ubuntu with Tor, privoxy ...
0
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0answers
253 views
Netplan Bridge Stuck in Degraded Mode
I'm trying to add a Bridge on 18.04 Server VM on Hyper-V with LXD Installed and the bridge never comes up and never gets an IP Address. Hopefully someone sees what I'm doing wrong.
network:
version:...
0
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0answers
43 views
Bridging issues within a small network (slaves cannot share master's internet connection)
I have a central machine with Ubuntu 18.04 LTS Server installed that is connected to the internet via a static IP address, and I created a subnetwork with several (6) other computers (also with Ubuntu ...
0
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0answers
57 views
Many bridge networks on Ubuntu Startup / Boot
When I start ubuntu 18.04, there are MANY Bridge Networks in my ifconfig. I can't connect some networks, (not cabled nor wifi) until I delete some of them.
After delete them, systems works perfectly....
0
votes
1answer
593 views
Linux bridge as a trunk port
does anyone know if linux bridge supports passing multiple VLANS? I have seen many example like eth0.VLAN_id then add this to the BR0 for example and that works. What i am actually looking for is to ...
0
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0answers
155 views
Where are all the network-bridges coming from, ifconfig shows me?
I'm using Ubuntu 18.04.3 LTS
As I'm a developer, I have Docker, docker-compose and Virtualbox and Vagrant installed
If I enter in a terminal:
$ ifconfig
I got a long list of network bridges.
...
1
vote
1answer
42 views
Bridges without an IP
This answer states that a network bridge doesn't always have to have a IP address. It mentions this entry for /etc/network/interfaces:
auto br0
iface br0 inet manual
bridge_ports eth0
which ...
0
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0answers
141 views
Attach multiple physical Interfaces to a KVM VM
I am trying to set up multiple VM's on a Server with multiple network interfaces via KVM and network bridges. The idea is to have a Bind/ISC Server with an IP on Bridge#1 that assigns IP's and ...
3
votes
1answer
629 views
Bridging LAN and WIFI using netplan not working and killing AP
I'm trying to extend my local LAN network via WiFi and would like all devices in the same network. The setup is as follows:
DHCP/DNS server running inside the LAN
separate PC linked to the LAN, with ...
1
vote
1answer
790 views
Define hostapd configuration settings on netplan
I recently discovered that netplan can manage hostapd accesspoints, but this is the extent of the example config:
wlp1s0:
access-points:
"guest":
mode: ap
# no ...
0
votes
1answer
115 views
Creating a home server to act as a wifi access point and home router (Ubuntu server 18.04)
I'd like to set up a home server with several responsibilities
Wireless AP for local networking
Ethernet switch for local networking of various devices (HTPC, networked printer, etc)
Home firewall ...
0
votes
1answer
387 views
Connecting two ethernet ports with a bridge kills local network
I've just finished rebuilding my NAS, now using an Intel-based SBC with two Realtek ethernet ports (Odroid H2 for those interested). Everything worked fine so far, up until I tried to use both ...
0
votes
0answers
117 views
Ubuntu 16.04 static route with 2 interfaces and a bridge. Use one interface just for local traffic
I have a Ubuntu 16.04 install with 2 connected interfaces both with static IP's one in a bridge configuration. The networking service refuses to set the gateway on boot and I have to add it manually ...
0
votes
1answer
106 views
Ubuntu 18.04 with routing but need VM bridge
I have set up routing on my Ubuntu 18.04 desktop box. I have one dedicated ethernet port for my internal network that serves DHCP. I have my wireless NIC set up for internet access. Network works ...
0
votes
0answers
132 views
Cant connect to external App from the docker container
I have a rest api based microsercvice application where I have multiple docker containers within a dev-server. The IP of dev-server is 10.192.168.xxx. I have the an external application to which I ...
0
votes
0answers
91 views
KVM Bridge Sees VM Mac Address on Wrong Port
I have an Ubuntu MAAS managed KVM. Primary network for the host is an balance-rr bond with a static IP Address. The virtual machine is attempting to use MAAS configured bridge to PXE Boot but it's not ...
1
vote
1answer
195 views
Ethernet cable not detected after force shutdown in Ubuntu 18.04
My Ubuntu 18.04 shutdown forcefully because of a power outage.
Now after restart, I have two new accounts
dnetmaster
netplan daemon user
In my user profile, the internet does not work.
After ...
0
votes
1answer
71 views
Unable to ping or rdp from UBUNTU 18.4.2. HOST to KVM windows7 Guest VM -but able to ping to other linux guest centos
Unable to ping to only Windows guest. able to ping to other guest.
HOST os Ubuntu 18.4.2
What i did so far-
Tried to change device to virtio,rtl8329,e1000
Internet is working on guest.
Windows 7 ...
1
vote
1answer
58 views
LXC - two bridges
I'm trying to create two different bridges to use with LXC.
I have the following configuration:
/etc/lxc/default.conf:
lxc.net.0.type = veth
lxc.net.0.link = lxcbr0
lxc.net.0.flags = up
lxc.net.0....
1
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0answers
200 views
Bridged network for LXC - Ubuntu 18.04
I'd like to create a bridged network for three containers, with static IP addresses and connected to the internet through the ethernet card of the host machine.
For example, with the bridge named ...
0
votes
0answers
57 views
Routing Traffic on additional IP to VM
I've setup a Windows Server 2012 VM on Ubuntu 18.04 for testing purposes.
The VM is running but without internet access. I've also got a second ip from my host, Hetzner.de.
The Ubuntu server has ip: ...
