networking

  1. [SOLVED] Linux Bridge not working

    Hello all, I have a proxmox 7.1-12 instance and I use an IPv4 bridge there called vmbr1. Unfortunately I can't ping the VM and the host via vmbr1, there seems to be no traffic at all. Host Config: auto lo iface lo inet loopback auto enp9s0 iface enp9s0 inet static address...
  2. Netplan dying on VM

    I am running PVE v7.7-1 with a VM running ubuntu 18.04.4. I encountered weird errors regarding my networking interface on the VM when I tried to restore from a snapshot. The networking configuration was working fine at the time of the snapshot, and before the restore. I am seeing weird errors...
  3. VXLAN SDN Network with MTU <1280 means Containers and VMs cannot start

    I have deployed a VXLAN setup on my homelab cluster and I can get connectivity between containers on various hosts, as long as the MTU on the VXLAN zone is greater than or equal to 1280 (the minimum size of MTU in IPv6). My intended final state is one where the VXLAN networking is encapsulated...
  4. Networking interface won't start after snapshot restore

    Hello all, I had something weird happen today, and I can't seem to figure out the root cause of it. The issue actually stumped my entire company and it was recommended to me that I just rebuild the VM entirely. I obviously don't want to do that, as it has important stuff on it, and it would...
  5. [SOLVED] Move pveproxy/web gui to VLAN interface

    Hello, After putting some thought into it I would like to move my proxmox GUI to another interface. Here is what I want to accomplish: Take the gui off of this address 192.168.10.3 auto vmbr0 iface vmbr0 inet static address...
  6. High Bandwidth (Download) Causes VM to Lockup

    Hi there, I'm having an issue on my hosts (2) wherein whenever I download large files/ISO's or run Speedtests etc and it consumes most of the available bandwidth for my ISP downlink (1Gbps), it seems to tank the Windows VM I am using at the time to download. I am connecting to the Windows VM's...
  7. qm config command issues?

    I have run into a situation when creating VMs using the qm config command from the command line. The QM CONFIG command fails when I include any "net" options to create the VM NICs as part of VM creation. However, once the VM has been created, the QM SET command does work successfully with the...
  8. 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...
  9. Long term reboots of CEPH cluster

    We are solving a long term issue with a 3 node proxmox CEPH cluster. From time to time one of the nodes in the cluster just accidentally reboots. The physical setup is as seen here: Lets focus at pve1 configuration which represents the same config at the other nodes. Here is the pveversion...
  10. SDN Networking Issue - Missing Vnets

    Hello all, I am very new to the PVE world, and I am trying to test the SDN beta feature. During initial configuration I am running into an issue that is not posted anywhere. I have installed the libpve-network-perl & ifupdown2 packages, everything seems to go smoothly when creating controllers...
  11. Proxmox Ceph Cluster - VLAN Tagged VM's not Communicating

    Hey Everyone, I am slowly reaching the end of my Ceph Cluster project and the absolute last thing I need to accomplish is setting up my PVE so that I can create VM's for the different VLAN's in my existing environment. So far I can confirm I can create VM's and have them migrate successfully...
  12. [SOLVED] No connection from LXC or VM

    I've been starting to expand my home lab a bit, and I installed proxmox 7.1-7 on a thinkcenter. To test things out I created a Windows server 2019 vm, an Ubuntu 21.04 server vm and an Ubuntu 21.04 LXC. Some details about the network: - Gateway is at 10.10.15.254/24 - Proxmox is at...
  13. Using two different Ip Scopes

    I am curious if there is away to do this without expensive hardware. .. What I am looking to do is separate one particular VM from my Host/VM ip scope. My host and VMs currently using 192.168.0.0/24 but I have a linux vm that is accessible from the outside via SSH and would like to separate it...
  14. 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...
  15. Running Ark Server in VM - Networking Help

    I have a Ark server setup and running in a Windows server VM on my Proxmox machine. I can connect to my server in Ark when I am home and on my local network, but as soon as I try to connect when I'm off my home network I cant join. I've setup the firewall in windows to allow the ports, and...
  16. PVE + Hetzner vSwitch network issue

    Hello, I am having a very odd issue with my setup - it is on PVE (7.1-10) running on a Hetzner dedicated box and using vSwitch additional network. Background and setup: I have a Hetzner vSwitch attached to my server. That vSwitch has an additional /28 public network on it. When working with...
  17. Public-facing Proxmox cluster randomly loses http connection on nodes in a rotating/random fashion

    Recently hired, I don't think this is a perfect proxmox setup and would like to improve it. Currently, our proxmox cluster has its 3 nodes assigned public IP addresses that we use to connect to them. Fairly randomly, we lose http connection to a node(s) and then just connect to one of the...
  18. Einbrüche im ausgehenden Traffic

    Servus zusammen, ich habe bei meinen VM's ein Problem mit der stabilität im ausgehenden Netzwerk Traffic. Solange nur ein VM aktiv ist hält sich der Traffic stabil, in dem Moment in dem aber auf dem Host System gearbeitet wird oder eine zweite VM zugeschaltet wird, bricht der Traffic alle paar...
  19. [SOLVED] No Internet

    Hello, I recently updated my Proxmox VE 6 server which led to all my VM losing access to the internet via a bridge made. I googled some fixes and found one which looked promising, it included entering the public IP in I believe the CIDR field of vmbr0; upon doing this it did not fix my issue...
  20. IOMMU setup problems

    Hello, ProxMox community, The problem I have recently purchased a Converged Network Adapter (NIC) Intel 82576, and I am having problems setting this up. When I start up Proxmox, the computer isn't connecting to the internet. When I am in the BIOS, the NIC lights up as it's receiving data but...

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