networking

  1. E

    [SOLVED] Networking issue, (Proxmox on a hyper-v guest)

    Hello, As a new user of Proxmox, I've installed it on a virtual machine running on a Hyper-V server (with the goal of exploring Proxmox and potentially migrating my server fleet to Proxmox in the future). I'm having difficulty setting up VMs (tested with Windows 11 and Debian 12) because I...
  2. C

    Struggling to create Ceph OSD on Node that is not apart of same Gateway/LAN (4 Nodes, Different LAN)

    Hi everyone, I have 4 nodes in my Proxmox Datacenter. Two nodes are in North America and two are in Asia, thus they are both in different geographical locations and networks. Node 1 (10.10.100.1) Node 2 (10.10.100.2) Node 3 (10.100.200.1) Node 4 (10.100.200.2) I have successfully setup Ceph...
  3. S

    ifupdown and ifupdown2 issues

    Hello, i have the issue that on one proxmox machine the label internal is showing with "ip a" and on the other machine it isn't. I got two proxmox installations where i configured the following: auto lo iface lo inet loopback auto eth0 iface eth0 inet manual auto vmbr0 iface vmbr0 inet...
  4. L

    How do I reset network interfaces

    I have been trying to setup pfSense but I accidentally set the pfSense vm to the integrated network controller on my server (one of the 4 ports on a dell r720). I have already run (VM number is 104) qm stop 104 qm destroy 104 Any help is appreciated!
  5. N

    Problem with VLAN and DHCP

    Hi all! I recently installed proxmox on my server, and now I'm trying to get networking in order. The problem that I have, is that for a certain VLAN, the DHCP response from my DHCP server doesn't seem to end up in my VM. It does seem to reach proxmox, but there's nothing arriving in the VM...
  6. S

    Network support for socket CAN

    I know this is a bit of a long-shot but maybe there are some others with similar use-cases. Right now Proxmox has integrated support for virtual-eth networking to containers and it works well. I really want to be able to add interfaces to a container for network devices other than Ethernet...
  7. P

    Local network and public for VM/CTS

    Hello, We have a Proxmox server setup in our datacenter with a local network configured for the host (Proxmox GUI) and we have a second VMBR setup named VMBR1 with a Linux BOND for failover to access our public IPS. Now I was wondering, how could we prevent that our CT/VMS can ping our local...
  8. S

    Two NICs two subnets

    Hello Everyone, I'm sweating my bal*s off right now, i've been searching for a definitive and working answer for days but nothing seems to work. To start i use the onboard motherboard NIC as the main one, which is on 172.168.1.0/24 LAN, which is also working fine as intended. As a second NIC i...
  9. S

    Configuration on remote server

    Hi, let me describe my use case first. I have a remote physical server of around 20TB. I want to use it to host my web app which is currently in GKE. So I want to configure my physical server to host my web app, I'm planning to install a hypervisor (proxmox) on my server and host VMs. Doubts...
  10. S

    [SOLVED] Connecting to a Windows VM using SPICE client over the Internet via Cloudflare tunnels

    I am self-hosting Proxmox VE v7.4 and have a Windows 11 VM configured with a SPICE display and SPICE enhancements enabled. I've installed both spice-guest-tools and spice-webdavd on the VM to enable folder sharing and I can connect to the VM just fine using virt-viewer on my local network. I...
  11. P

    Issue accessing Proxmox server web interface after setting up pfSense

    Hello, I'm encountering an issue with accessing the web interface of my Proxmox server. Here's my setup: I have a Dell R710 server running the latest version of Proxmox, and I recently installed pfSense as a VM on it. Currently, pfSense is the only VM running, and it is connected to the...
  12. S

    Trouble Adding 2 Port 10G NIC - Only One Port Working At A Time!

    I recently got a 10G NIC (Intel X540-T2). The plan was to run one port directly to my workstation and the other directly to my Windows server. I configured each port to have their own Linux Bridge and static IP on a separate ip range from the rest of my home just for this 10G, computer to...
  13. A

    Can't connect to Proxmox GUI with two Intel X550-T2 installed and set to auto start

    I had one Intel X550-T2 installed on my server and all VMs were running fine and I setup OPNSense and had it configured with the two ports from the X550 being LAN and the onboard ethernet being the WAN interface using bridges. However, for OPNSense to really replace my router, I needed more...
  14. M

    DNS not Resolving Correctly

    Hey All! Hope you're well. Hopefully you can help, as I'm stumped here. I have a pve running in my homelab with one node. I have a Synology router that has their DNS server package that I host at the gateway so everything that queries DNS goes there and then forwarded on if needed. Very easy...
  15. B

    Switch Not Reachable via Bonded Subnet Interface

    I look for support and guidance around where I am going wrong in a PROXMOX environment that I am setting up. I have one server that is connected and working for the Test Environment. It is running on the 172.16.0.15/16 network. We have three more servers that we have set up in cluster. The...
  16. A

    Webserver VMs with HTTPS loading incredibly slow

    I'm moving from Windows Hyper-V to Proxmox and was excited, but I'm noticing that the websites hosted by these VMs (running Ubuntu Jammy) are loading incredibly slow. So much so that often on the first page load, I get an error 522 from Cloudflare (the sites are proxied through them) and then if...
  17. J

    Debugging sporadic networking problems on LXC

    I have a 5-node cluster with LXC only. From time to time, some LXC loses connectivity. It's sporadic, sort of random even. But when it happens I am very lost at how to properly debug it to know the specific cause of it. This weekend happened again. Took the chance to upgrade the node from...
  18. N

    Hetzner additional ip not working on vm

    Hey everyone, For the past few days I've been trying to get the additional ip on my Hetzner box to work on my vm, but I haven't been very successful. The vm's internet connection just doesn't work, attempting to reach any outside ip results in the ping returning no feedback, even after ten...
  19. J

    Fresh Install of 7.4 - Can't ping gateway - No internet access

    I used the =9916e23271e8cf3207741acc7714efa2']latest iso for did a fresh install. I used the network setup options part of the installer with the following parameters: Address: 192.168.1.10/24 Gateway: 192.168.1.1 DNS: 192.168.1.1 I can connect to the web portal with 192.168.1.10:8006: The...
  20. J

    Configure Networking for Load Balancing and Fault Tolerance

    I have three Gigabit Ethernet NICs installed on my Proxmox VE Host. If I want to have load balancing and fault tolerance Do I configure the Proxmox VE like this OR do I need to use the Bond and attach it to the vmbr0 Bridge? And do I need to configure the LAGS on the Cisco Switch's...

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 yours easily in our online shop.

Buy now!