linux bridge

  1. [SOLVED] LXC's on different linux bridges can still ping each other

    Here I am again, the issue is quite simple (and was probably there for a few months but I never realised). The promox I took over already had one linux bridge setup, VMBR0 (which I'm guessing is from the installation), I then created a second linux bridge to isolate my lxc's and vm's >> VMBR1...
  2. [SOLVED] VMs are losing network access for a few seconds. Host does not.

    I am having issue with one of my Proxmox nodes. VMs are losing network access for a few seconds (1 - 5). Host does not. By "losing network access" I mean they cannot reach (or be reached) other devices on the same subnet. Each VM drops connection at different time. Host is Dell R320 running...
  3. [SOLVED] Linux bridge - many duplicates in mac address table for the local interface

    I am trying to debug a short network interruptions (1-10 seconds) that happens to VMs in my home 3 nodes Proxmox cluster. Those interruptions happens about once every hour so they are quite a pain to debug. While trying to debug this issue I stumbled upon an wierd output from "brctl showmacs...
  4. Pfsense / Proxmox virtual network

    Hey Everyone, looking for some advice as im busting my brain. I have this 6 port pc initially i thought i could setup pfsense on it with 1 port Wan and other 5 LAN being able to assign same vlans to multiple ports. but turns out pfsense only lets you assign vlans to 1 port by restrictions. Now...
  5. Bonded vmbr but only 1 port works at a time

    Hi, Hope you can help me solve why only one ports is active at a time in a bonded virtual bridged port. I have PVE on a bare metal unit with 6 intel I211 ports. In a bonded pair, it seems like only one port is active at a time. The config in the interfaces file is for LACP mode which, from...
  6. Proxmox on DigitalOcean ( VM network connection problem) HELP!!

    1. install proxmox on debian 11 | ( https://pve.proxmox.com/wiki/Install_Proxmox_VE_on_Debian_11_Bullseye ) 2. installation a success 3. The default network configuration that remained was: 4. I need to configure LINUX BRIDGE, but I can't at all
  7. working interface fails when added to bridge

    Hi All, I have an Intel x540-T2 10gbe ethernet card that works perfectly with Proxmox 7.1-10. That is, until I try to create a Linux Bridge with it. The interface (enp139s0f1) works at the pve host level as one would expect... ssh, nfs, etc. all work. If I take that interface down and create...
  8. Linux Bond + Linux Bridge (Not Working in VM)

    Hi, I'm facing an issue: This is a screenshot of my Network Interfaces: I have created bond0 by using eno1, eno2, eno3, eno4 without setting an IP Address on the bond. After this, I've created vmbr0 using bond0 and my Private IP Range which is 172.15.200.1 (Gateway: 172.15.254.1) I can...
  9. Hetzner: IPv4 Routed to VM not working proberly

    Hello, for the last couple of days we try to switch our Proxmox installation from a Linux bridge to a routed setup with Proxmox. The Linux bridge worked just fine, but won't allow us to route IPv6 traffic to the VMs at the same time. Still we can't employ a IPv6 Linux bridge as Hetzner doesn't...
  10. How to setup Proxmox networking configuration with two public IPs and a VLAN?

    My hosting provider is Vultr; I run Proxmox on a dedicated BM server. The host perfectly connects to the internet; however, any VM I create does not connect to the network. Desired outcome: The hypervisor Proxmox has its public IP, then one VM should have its dedicated public IP (the second...
  11. Can't get VLAN tagged traffic across Linux Bridge

    Hello, I can't seem to get tagged VM traffic to my router. I am successfully routing vlan traffic on another proxmox node using an OVS config, so it's a node specific issue. 192.168.1.1 is my pfsense router. I have rebooted the node multiple times in between network changes. I initially...
  12. Same IPv4 address on every VM

    Hi, I recently bought myself a DELL PowerEdge R470 Server and installed Proxmox 7.0.13 on it. It's working great, but all the virtual machines have the same ipv4 on the internet. They only have different IP addresses on my local network. I looked a bit around but I couldn't figure out how to...
  13. Internet in the vm are not working properly

    Hello Everyone, I am a newbie in proxmox and i dont have much idea on it so I hope I will get the solution for my problem here. SO I have a proxmox machine and with a public ip in vmbr0 (eth0 bridged) i dont know why this is bridged but it works fine. I have created another bridge interface...
  14. Network breaks when I add Linux bridge

    Hello everyone, I'm trying to create a Linux bridge in Proxmox 7 but facing the below error. iface eth0 - ip address can't be set on interface if bridged in vmbr0 (500) cat /etc/network/interfaces #without vmbr0 # The loopback network interface auto lo iface lo inet loopback # The...
  15. Deploying layer2 device in transparent mode

    Hi All, Recently we were trying to setup F5 BIG IP VE edition on our Proxmox cluster purely for L2 optimization on some links. We created vm with two interfaces. each interface attached to Linux bridge like this. router1 -> f5(on proxmox) - > router2 eno1 -> vmbr1 (router1 to proxmox) eno2 -...
  16. Proxmox not working after adding Linux Bridge

    After I add the bridge (vmbr2), and hit accept it works as it should. But if I reboot I can no longer SSH in or get to Proxmox via GUI. Than to get back in I must boot to an emergency CD and disable the vmbr2 bridge. Any help would be much appreciated, below is my /etc/network/interfaces file...
  17. Proxmox on Debian 10, keep losing connection after creating Linux Bridge and then rebooting

    I'm trying to install proxmox on debian 10. Following the official wiki and everything works great until I try to create a llnux bridge. The machine loses internet connection after I create a linux bridge and reboot. I've tested this out with 3 different reinstalls. I've tried it with and...
  18. Untangle NIC passthrough / VMbridge

    I'm trying to use Untangle as a VM on proxmox. I watched some guides on youtube and they mentioned to passthrough the NIC directly to Untangle. However, I'm facing a problem after doing that. When I passthrough the NIC, I am unable to get any connectivity to Proxmox and other VMs. I tried to...
  19. Unclear how to network bridge

    Issue: I cannot ping between the 2 machines, since adding a Proxmox Linux Bridge via GUI. Attempt to resolve: I followed the Proxmox Network Configuration guide > Routed Configuration. Setup: My network topology: Internet > mobile > SIM > Wi-Fi hotspot on > Wi-Fi NIC > machine0 > machine0's...
  20. Pfsense with VLANs migration from ESXI

    I have been using ESXI for 5 years now on a 2011 mac mini with no issues. The setup is: - Dual NIC (one on board, one thunderbolt adapter) - One NIC is dedicated to WAN - The other NIC goes to a managed switch in a trunk port that has 3 VLANS + untagged for LAN - The switch connects to a unifi...

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get your own in 60 seconds.

Buy now!