networking

Hello, today I updated my Proxmox VE nodes from Linux 6.8.12-16-pve to Linux 6.8.12-18-pve and now Thunderbolt networking isn't working anymore. The driver "/lib/modules/$(uname -r)/kernel/drivers/thunderbolt/thunderbolt-net.ko" is missing. Did I miss something in the changelog or was that an...

Hello everyone, I'm experiencing a recurring network failure on a Proxmox VE host using a Broadcom NetXtreme-E 100G NIC (BCM57504). The NIC stops transmitting, triggers a TX timeout, and then fails to reset correctly. After that, the interface is disabled and vmbr0 loses connectivity until the...

My Proxmox is behind a TV and access the network over LAN. To enhance my w-lan I would like to use the W-Lan of my Proxmox device as access-point. Is it possible to configure an access-point that support W-LAN Roaming?

I started migrating from pure Bridge Network Setup towards Bond based Network Setup on several of my Hosts now, after I accidentally created a Network Loop by plugging in multiple NICs (physical Interface connected to vmbr0 in Proxmox Network Configuration) into a Physical Switch, all while...

Hi everyone, I’ve just registered on the Proxmox support forum and I’d like to ask for some advice regarding managed network switches that work well with Proxmox, especially for VLAN usage. To give some context about my setup: I currently have 3 Intel NUCs and one GPU rig, all running...

I know that there has been many different discussions on here about deploying Proxmox clusters where each node is in a different location / different data center but I want to know how I could get multiple nodes into a cluster where each node has a public IP but the latency between each node is...

I want to do a VPN that only has access to one VM, and not the rest of my LAN (server is a homelab, there's another non-proxmox server with some open services). It seems that proxmox firewall does not work for non-proxmox applications and/or does not filter the VPN connections. I was going to...

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I know this has probably been asked before, but I can't seem to find the answer. I have 2 Proxmox servers 1 HPE DL360 and 1 HPE DL380 both have dual 10gig nic. (not clustered) - DL360 lives on 192.168.1.80, and DL380 lives on 192.168.1.81 - DL 360 has an ubuntu server vm that houses all my...

I'm sure this is going to be a painfully beginner question and I apologize from the start: I'm attempting to expose a single VM to 8080 and 443. Unfortunately, networking is not my strong suit. I have two rules assigned to it, set up as shown here: (and then for HTTPS the source port is set...

Since this is not a first I share here a brief summary of an awful event which lead to considerable downtime. Running a Proxmox cluster with OPNSense as firewall, this firewall is the first point of entry for all traffic. Yesterday I switch off routers (1 ISP and 1 wifi router) as I did before...

Hey everyone, I’m pretty new to all this and planning to run Home Assistant on my mini PC. Originally, I was going to install it on Ubuntu Server, but I’ve since learned that Home Assistant OS is probably the better choice because of the add-ons. So that makes my original plan kind of...

Hi all, is it correct that by default Proxmox 9 in a 3 node cluster configuration with CEPH for VM migration use VMBR0 network? Current node network config does use a separate network for CEPH Cluster (10.10.10.x/24), CEPH Public (10.10.20.x/24), COROSYNC (172.16.1.x/24) and VMBR0...

Hello! Recently decided to build out a more proper homelab and started experimenting with Proxmox; apologies ahead of time if I missed something basic, still very much a beginner. Stumbled across an interesting issue where I am unable to reach services running on a VM from my local network but...

Hello all, I was recently testing VM to VM bandwidth/speed on various machines in my homelab. I was doing these tests with iperf3 from within several VMs because I was not quite getting 25gb speeds accross my network. I eventually got to the point where I was looking at both the Proxmox BIOS...

Hi, I have an Ubuntu 24.04 VM running on Proxmox with a Virtio network device. Network performance on this VM is extremely slow compared to other VMs on the same host. Details: Proxmox VE 8.x Guest: Ubuntu 24.04 LTS Network: Virtio (paravirtualized) MTU currently 1500 (tried raising to 6000...

Please delete this tread. As usual, my mistake. Was re-using a LAN IP address I had used before which was part of a firewall rule to block outbound connections! I could ping, but tcp was blocked so it was a little hard to diagnose. ______

Hi, Sorry since I'm a noob I should probably not use that kind of setup but either way. All was working fine on my old HPe G10 blade server BL460c But just after upgrading to the new kernel update 6.14.11-2, it seems to goes to shit. No network connection available remotely since then during...

Hallo liebe Proxmox Community, ich habe aktuell folgendes Setup: Dedicated Server bei Hetzner (AX41-NVMe) Der Server ist öffentlich nicht erreichbar, sondern ausschließlich über einen IPSec-Tunnel angebunden (verbunden mit einem Linux-Cloud-Server → daher privates Netz). Netzwerkübersicht...

Once upon a time I successfully upgraded several Proxmox pve nodes from version 7 -> 8 (or was it 6 -> 7) being lazy and since it didn't seem to cause me any problems I didn't do a widely publicized step of, I believe if memory serves, adding source /etc/network/interfaces.d/* to /etc/network I...