networking

I have an issue with two Proxmox hosts which are misbehaving when establishing connections with pretty much anything. My own applications, apt, curl, ping, you name it. Both on the host and within LXC containers, things keep attempting to connect via IPv6, even though no IPv6 service is...

Hi I'm currently experiencing hardware issues. I am having to change things round to try and get things working; plug in a GPU etc Is there any way to avoid the ID of passed pcie & bridged network device changing? Each time I plug in I have to currently switch items to get things to work, and...

I've purchased a dedicated server from a data center as well as 4 reserved IP addresses. I've been trying to make this work for 10 hours but for some reasons VM's I create on Proxmox can't connect to the Internet. I am trying to assign these IP addresses provided to me by the data center but...

I've got a debian 12 VM with a CIFS vers 3.0 mounted filesystem, but for some reason i keep getting "CIFS: VFS: sends on sock xxxxxxx stuck for 15 seconds", leading to error in file r/w in the VM and at the same time my web browser briefly loses connection to the proxmox management plane, as...

ok, i have jumped through the hoops to enable SR-IOV on our proxmox host, and have the resulting list of virtual functions listed when i do a ```lspci```. the issue i have now is, how does one assign a vLan tag to said virtual functions so that the vm is sitting on the proper network? i can't...

I've setup a simple zone with automatic DHCP, a vnet and 10.0.0.0/24 subnet with SNAT enabled. On the host I have 2 bridges configured: - vmbr0 with public IP 1.1.1.1 - vmbr1 with public IP 1.1.1.2 (Those aren't the real IP addresses, just substituted by me). When creating the subnet and...

I have been attempting to get my networking to function correctly for the past few days. My setup is a dedicated server through OVH. I have 1 main IP and 2 additional IP addresses with virtual MACs. I have my main node within proxmox setup with the default eno1, eno2, and vmbr0. eno1...

Hello, been using proxmox for about a year now and I am trying to improve the security of my cluster. Treating all traffic as a problem until proven otherwise. the Block IPv4 link-local (1000000102) rule on my PFsense firewall keeps blocking traffic from my proxmox VMs coming out of the cluster...

Hello guys, I am currently facing an Issue in our Proxmox Cluster as described in the Title. It does not matter on which Node the VMs are on, or if they run Linux or Windows, it happens on every single one. However LXCs in the same VLAN are not affected, since they dont use the VirtIO Adapter...

I have a server with 2 10G-baset Intel X710 LAN ports and is unable to maintain active connection with the switch. Link go up and down continuously. With the concomitant transition to the enterprise repository and upgrade to version 8.2 the problem has worsened making the server unusable. I...

I figured out my issue before this post could be approved to go public. Wasn't a Proxmox issue, but was a networking issue. Home switch had sticky ports, and each lxc/vm generates their own mac address. Suffice to say, issue is resolved. Not sure if I can delete this thread. If not, maybe...

Hi, I'm hosting Proxmox at Hetzner, which gives me a Proxmox instance behind a public IP. I managed to get proxmox to have an internet connection with the following /etc/network/interfaces config. And vmbr1 and the #nat is my attempt to get it to work for VM's. auto lo iface lo inet loopback...

I run OPNsense as a FW, I have a 4xPort lacp to my main switch also 4xPorts lacp which all my Vlans go through. from my switch to my proxmox server I have a 2xPort lacp. I cant get Internet access or ping any other Vlans/devices from Container or VMs that are not on the main proxmox-mgm...

Hey everyone, this setup runs in a datacenter on a public IP 37.x.x.86/26. The server has got one physical interface eth0. The current setup works nicely with a masqueraded private subnet 10.10.10.0/24 and the single public IP. I now bought two additional IP adresses, because i need public IPs...

Hello, i hop you guys can i help me. Currently i have proxmox in the hetzner cloud on a root server. I have 3 Public IP-Adresses. 1. Public IP: 138.XXX.XXX.126 (Proxmox Interface) 2. Public IP: 138.XXX.XXX.96 (pfSense WAN -> LAN) 3. Public IP: 138.XXX.XXX.105 (pfSense WAN -> Mailserver) Hetzner...

Hi, I'm having an issue where I cannot add new interfaces to VMs, or even create new VMs, because proxmox lists my vmbr0 bridge type as 'unknown'. This means that I have no devices listed in the 'bridge' option box when creating interfaces or VMs, and therefore they cannot be created. I can...

Hi, I'm having an issue where I cannot add new interfaces to VMs, or even create new VMs, because proxmox lists my vmbr0 bridge type as 'unknown'. This means that I have no devices listed in the 'bridge' option box when creating interfaces or VMs, and therefore they cannot be created. I can...

Hi guys, Got a question about internal networking between VMs. I've created a secondary Linux Bridge (vmbr1), and I'ved added the bridge to three VMS; two win10 vms, and truenas. I've assigned a secondary IP for each o the vms: 192.168.2.1 = Truenas, 192.168.2.2 = Win10VM1, 192.168.2.3...

Hi, I wanted to try nftables on Proxmox, it seems quite nicely done, bravo! I guess most users don't use any output filters, but if using them in iptables, we get a stateful output rule, allowing to only open INPUT for a given port, and assume that it will go out. Chain PVEFW-HOST-OUT (1...

Alright context. I have 2 nodes in a cluster. Dell R620 Dell R720 Going to talk about 3 devices total. All have 10Gb networking to each other through a switch Both machines are running the same pve version (8.1.10) and kernel versions, both are fully up to date Both machines have the same...