networking

  1. M

    IPv6 incoming and outgoing

    Hi, I am a little bit of a beginner when it comes to the IPv6 protocol and the way Proxmox/linux handles it. For context, we run a mail server on a guest inside a Proxmox box (bare-metal at a web farm). Everything IPv4 is configured and works great. Recently however, a client's MS Exchange box...
  2. Y

    Container or VM

    I would like to make a router for a 10G+ bandwidth (BGP+QoS+Firewall). Of course I will passthrough the network cards inside to the VM/Container. What is better for that purpose: Container or Virtual machine?
  3. R

    [SOLVED] ufw blocks dns queries from vm?

    Hello, I can not resolve any hostname on my debian vm as long as ufw is enabled on proxmox. is there some configuration or some rule that I can add? I'm running proxmox on a dedicated server, the installation was made with the hoster's iso. it originally came with following networking: auto...
  4. T

    ISCSI SAN Network Unavailable on Boot or Cable Disconnect

    Greetings, We're running ProxMox 7.1-5 on Dell R7525 servers (AMD cpu) with (2) Dell Broadcom 57414 Dual Port 25GbE SFP+ nic cards attached. We've got (2) 25GbE switches cabled correctly and connected to our ISCSI storage appliance. One card is in Riser 1 and the other is in Riser 3; I'll...
  5. R

    Not hitting above 1gbe in VMs

    Greetings. I just installed an Intel X520 to a 10gbe/2.5gbe switch and I'm still limited to 1gbe on my VM (OMV). I used ethtool to check the physical links and both my bridge and my physical are 10gbe on my hypervisor (Proxmox). Bridge: Settings for vmbr10: Supported ports: [...
  6. T

    [SOLVED] Display Off-site PBS Host IPs

    Hey all, Simple question: Is there a way to see a local PBS instance [Public] IP from a remote? local (off-site) <-- Pulls from <-- remote (on-site) In short, I know the on-site (remote) PBS IP, but not the off-site (local) PBS IP. Checking /var/log/auth.log, /var/log/wtmp.log...
  7. A

    No Networking After Proxmox 7 Upgrade - OVH

    Hi all, I followed the guide on upgrading from Proxmox 6 to 7: https://pve.proxmox.com/wiki/Upgrade_from_6.x_to_7.0 The host I have done it on is a test server before I roll the update out to production servers and after running the upgrade I have no networking. I have seen a number of users...
  8. G

    Database Server With vRack & Failover IPs

    HI, I'm struggling to get my head around H/A with OVH and vRack. I have a small database server I want to provide some redundancy too. I have three servers located in the same region and vRack configured with a subnet of IPs. Can someone give me an example of the networking? I was thinking I...
  9. T

    [SOLVED] Reconnect Proxmox Backup Server to PVE Cluster

    Hi Everyone, My local Proxmox Backup Server stopped networking for some reason (possibly a driver issue?) while running as a VM under BHyve, so I issued a systemctl restart networking and things returned to normal. However, the Proxmox Virtual Environment cluster now shows the PBS repository as...
  10. gurubert

    PVE Cluster Service IP

    I would like to ask for a new feature: Service IP for a PVE cluster. I.e. the Proxmox cluster manager should be able to configure an IP address that is always active on one of the nodes (maybe the cluster leader). This would make it easier for automated tools to talk to the API. In case of a...
  11. P

    Proxmox OPNsense und Hetzner

    Guten Abend alle zusammen, ich habe seit ein paar Tagen mit Mac Abuse Meldungen von Hetzner zu kämpfen. Komischerweise sind die Unerlaubten Mac Adressen die Hetzner mir in der Mail zugesendet hat, Mac Adressen die automatisch durch die OPnsense erstellt werden. (siehe Bild) Wisst ihr ob man das...
  12. W

    iSCSI high network usage

    I mounted my synology nas via iSCSI and created a LVM on it and made it avaiable to my 3 nodes. One of those nodes is unused and is just there for quorum. On that node that runs no VMs I see really high transfer from my NAS to that proxmox instance (45MB/s continuously). Even after I remove...
  13. A

    PCIE passthrough NIC (SFP+ card) - very slow performance

    Here's what I have: Proxmox installed on a very powerful machine (RAM/CPU-wise). I have granted generous amount of CPU + RAM to pfSense guest. Now I have a 10gb uplink 9000 MTU connection for WAN. It's fiber / SFP+. I am doing full PCIe passthrough. (all functions of card selected, PCIe...
  14. P

    Option for double bastion Terraform setup?

    Hi, so due to security policies of my company, I am in need of a double bastion networking setup to connect to my VMs in Proxmox. If I were to ssh into one of my VMs the steps would be: my_pc -> ssh jump_server -> ssh pve-node -> VM However, using Terraform with proxmox provider, I am able to...
  15. H

    Warning : enp0s31f6 directory non-existent

    Hi, We installed proxmox for our client, but lately we got this error message in the log file warning : enp0s31f6: post-up cmd 'echo 1 > /proc/sys/net/ipv4/enp0s31f6/proxy_arp' failed : returned 2 (/bin/sh : 1: cannot create /proc/sys/net/ipv4/enp0s31f6/proxy_arp : directory nonexistant)...
  16. H

    Using a public IP for each created VM

    Hello guys, I'm pretty new to Proxmox and virtualization/networking in general and I've searched for this topic quite a bit. So basically my problem is that I have a dedicated server on Hetzner with the IP (65.21.121.xxx) and I got a subnet package from them for me to assign an...
  17. E

    Centos7/cpanel guest 2 subnets on Hetzner not working, help appreciated

    I got a second subnet to put on the centos 7/cpanel server but can not get the second network to run, configs below The original working subnet is the one on vmbr 5 and the new one on vmbr6 Host cat /etc/network/interfaces # network interface settings; autogenerated # Please do NOT modify...
  18. C

    Rerunning cloud-init

    Hi, I have a VM set up with cloud-init according to the instructions at https://pve.proxmox.com/wiki/Cloud-Init_Support using the Ubuntu Focal cloud image. This all worked flawlessly the first time I did it (thanks!). However, later I wanted to change the network configuration without...
  19. T

    Basic networking question

    Hello, I am new to proxmox and trying to figure out why my VM can't communicate with the outside world. Here's a diagram of what I have put together: The node itself can communicate with internal IPs as well as the internet at large, but the VM can only communicate internally. I'm sure...
  20. A

    No network traffic for qcow2 hard disk IO over NFS

    I have a Ubuntu Desktop VM with two hard disks. Both reside on an NFS server and the connection is 10GbE. One disk is in raw format and one in qcow2 format. The image files are called vm-106-disk-0.raw and vm-106-disk-0.qcow2. Both are 200 GB in size and attached using VirtIO SCSI controller and...

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