networking

  1. R

    Proxmox LXC Networking with public IP

    I have a bare-metal Proxmox server running with two public IPs. The initial configuration has already been done, and the containers are running with a NAT and a private network. I currently have 2 public IPs: 190.140.147.92 (This is the available one) This one has a comment in the interface that...
  2. I

    Proxmox LXC Debian Bookworm 12.1 not getting to login screen

    I am trying to setup a Debian 12.1 (Bookworm) LXC CT. The container starts but it takes about 5 mins to get to a login prompt. Once the login did appear I ran apt update / upgrade and rebooted to the same issue. Upon inspection, systemctl shows networking.service has timed out. The network is...
  3. H

    PVE: vmbr0 enters/leaves promiscuous mode repeatedly...server eventually becomes unresponsive

    Hi Folks, Does anyone know what might be going on? I'm seeing vmbr0 flipping into and out of promiscuous mode, until, eventually (< 1 hour), the machine becomes completely unresponsive (even from the console) and I have to power cycle/reset the machine. Debugging is a bit challenging, since the...
  4. T

    Connectivity to VM - SSH working but not HTTP

    Hello Proxmox forum I've recently setup a proxmox server as a test environment but having a challenge with connectivity. I can SSH to the VM but can not get HTTP to work despite the service being active and responding within the VM. This is the bridge that I'm using: auto vmbr0 iface vmbr0...
  5. B

    Can you help a rookie setting an ambitius goal with an openWRT CT?

    Hello fellow members. My sincere regards. I disturb you because I didn't really find valuable resources, and I'm failing to understand how to configure my 6 NICs to suit my needs. Specs: Intel 3865U (active VT-D and AES-NI) 4Gb DDR3 1600MhZ (single slot) 6x I210 Intel NICs 512GB 2.5" sata SSD...
  6. M

    Proxmox Mac Filter & NAT

    Hello Everyone, i stumbled across an issue with Mac filter and hoping someone will be able to advise if there is a workaround. Also searched the web and forums with no luck I have firewall and mac filter enabled for datacenter and vm's VM-1 has 2 ip addresses, one public and one private, VM-2...
  7. K

    [SOLVED] Moving cluster operation traffic to another network

    I made a mistake when I created a 5-node cluster. I added all nodes by IP to the cluster and `pvecm status` now shows: Cluster information ------------------- Name: cluster2 Config Version: 5 Transport: knet Secure auth: on Quorum information ------------------ Date...
  8. A

    Virtual Network

    Hello, I'd like to create an isolated network within proxmox that has 2 or more VM's within it that can talk to each other as in transfer files and so on, but otherwise have no access to the wider network so can't access the internet or any machines outside of the isolated network. Could...
  9. L

    [SOLVED] SDN broken after underlying network change

    We ran into a very nasty issue a few days ago. Background: Systemd generates ridiculously long interface names (see https://manpages.debian.org/bookworm/udev/systemd.link.5.en.html and referenced here https://wiki.debian.org/NetworkInterfaceNames#CUSTOM_SCHEMES_USING_.LINK_FILES) like...
  10. N

    Proxmox VE firewall not blocking SSH

    I have a very strict firewall policy that essentially boils down to, block ALL traffic from any and all servers and computers that are not essential to that host's operation or needs. This seemed fine for a while but I just realized that anything on VLAN 10 can access Proxmox via SSH, even...
  11. E

    Can someone explain to me how i can do this ?

    Hello, as you can see, below I have attached a diagram of my home network and I have some concerns. I want pfSense, which will run on a VM from the Proxmox server, to be the main router (Wan PPPoE, DHCP for all devices, to provide me with Internet for the Proxmox server for the rest of the...
  12. E

    Can someone explain to me how i can do this ?

    Hello, as you can see, below I have attached a diagram of my home network and I have some concerns. I want pfSense, which will run on a VM from the Proxmox server, to be the main router (Wan PPPoE, DHCP for all devices, to provide me with Internet for the Proxmox server for the rest of the...
  13. L

    Connection is lost intermittently and IPv4 address disappears for both supervisor and VMs

    Hi, I've scanned the forums and read hundreds of threads here and on other forums as well - but nothing seems to help. I'm running a Proxmox server and it's connected to an Unifi UDM with three networks: 10.0.0.0/24, 192.168.0.0/24 and 172.16.0.0/24. The VLANS are tagged with 192 and 172 (which...
  14. J

    Having Issues after node & cluster rename ~ Can't connect to destination address using public key

    Hi. I followed the guide https://pve.proxmox.com/wiki/Renaming_a_PVE_node, and renamed my main node, and also my cluster name. When trying to move a vm back to the newly named node, I get the error 2023-09-04 21:09:39 # /usr/bin/ssh -e none -o 'BatchMode=yes' -o 'HostKeyAlias=ravenclaw'...
  15. B

    PVE Cluster Networking with two nodes and QDevice

    Hi folks, It's time for some tinkering with the home server and network. Before I embark on my journey, I would like to hear your thoughts about any pitfalls or dos/don'ts you can see in my plan. Please let me know your comments or tips on the below. The WAN uplink is provided by my ISP's...
  16. S

    Routed mode with Bonding and VLANs - support needed

    Hi, I am trying to configure my Proxmox VE server to use Bonding, VLANs and make the VMs/CTs run in "routed" mode. I have successfully configured the Proxmox VE host to use bonding and VLAN on the host. However, I am currently stuck configuring vmbr0 interface for routed mode. I have used...
  17. 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...
  18. 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...
  19. 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...
  20. 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!

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!