networking

  1. T

    Proxmox cluster networking

    Hi everyone, I'm new here, basically this is my first post on this forum, and I do have an issue with my Proxmox. I do have two proxmox servers in cluster and, I try to add a Windows VM (from NODE1) to a domain, which is on NODE2. Unfortunately, there is no connection, the nodes have connection...
  2. J

    [SOLVED] Yet another networking issue from former ESXi user

    All - I know there have been many posts regarding similar issues - and I apologize for positing if this has already been addressed - but I've been trying to shift from ESXi for five days and am at the end of my rope. For background I've been running ESXi homelabs + Unifi infrastructure for...
  3. W

    [SOLVED] SDN with 2+ vnet subnet specify SNAT to WAN IP

    I have 5 IP addresses from my ISP and need to setup a VNET for each IP with a pfSense firewall to provide UPNP support for each IP. My test machine has a an internal Ethernet port and a USB Dongle. I am using the dongle (enx22) for the WAN The network looks like this: enx22 <--> vmbr1 <-->...
  4. A

    Multiple IP addresses to x1 NIC port

    Hi, I'm new to Proxmox, I've tried Googling this without finding a workable solution. I'm trying to do something (relatively) simple; and I'm not familiar enough with Proxmox and networking to know whether this is something that is done via the Proxmox GUI or customising Linux config files...
  5. H

    Random Proxmox Connectivity Issues (GUI+SSH) + Guest Downtime After Fix

    Hi everyone, I’m facing a strange and frustrating issue with my Proxmox setup and could really use some help. Here’s the situation: • Randomly, Proxmox becomes unreachable via web GUI or SSH, but all the guests are still running and reachable without any issues. • When this...
  6. K

    _

    _
  7. L

    VM have to reconnect manually after pve restart networking.service

    Hi there! VMs can't ping route after pve restart networking.service and won't able to reconnect automaticlly. I have to toggle firewall flag of network device net0( enable firewall if it is disable, vice versa) to resume VM's network. Impacted VMs' system are debian12 and win10. Neither...
  8. L

    openvswitch and proxmox. how am I -supposed- to do it

    So it has been a **long** time since I've done anything with the networking on my proxmox ve setup. For reasons that I have no recollection of (other than maybe 'sounds cool!') I went with openvswitch. I now need to do some vlan work. When I open /etc/network/interfaces the first thing I...
  9. U

    Can't figure out bonding and VLANs

    Here's my config, and forgive me, I'm an "old" vSphere admin: auto lo iface lo inet loopback iface eno1 inet manual iface eno2 inet manual auto ens2f0 iface ens2f0 inet manual auto ens2f1 iface ens2f1 inet manual auto bond0 iface bond0 inet manual bond-slaves ens2f0 ens2f1...
  10. M

    Giving VM access to Ceph public network

    Hello, this whole shebang has already taken me nearly a week to try to figure out, but I'm still stuck. Background: I want to spin up a 5 VM Docker Swarm cluster. They're meant to be using keepaliveD for HA/Failover using a simple SDN. That seems to be working OK. Now I "only" need peristent...
  11. mattlach

    [SOLVED] Proxmox 6.8.x Kernels Break Networking

    Hi Everyone, So the Proxmox server got itself a reboot today for the first time in a while, and when it came back up, there was no network connectivity. The PCI device appeared in lspci, and the network device appeared in "ip link show". ifconfig showed only the vmbr networks, and they were in...
  12. A

    Can I use ip of a VPS as a bridge to my proxmox server?

    Hello, my provider do not offer any additional ip, so can I buy a ddos protected ip from some other provider and from the vps I can configure something and add it to my proxmox? is it possible this is the only way I can get ip for my Proxmox server this will help me a lot thank you! kindly...
  13. X

    IPv4 stopped working, IPv6 works

    I am having a problem where after an update, I lost all IPv4 connectivity. IPv6 thought works This is my setup: 1. Running proxmox on a mini PC (Virtual Environment 8.1.11) 2. Network layout Pfsense (router) --> Unifi Switch --> Proxmox MiniPC (172.25.90.50) 3. Proxmox server is on its...
  14. S

    Advice on setting up a L2TP VPN on Proxmox.

    Hello, (If this post seems familiar, I originally asked on the mailing list, but I'm posting it here for visibility) I've got a Proxmox server, and I'm wanting to use an A&A L2TP VPN[0] on the Proxmox host. I'm unsure how to set this up in `/etc/network/interfaces`, as I primarily use...
  15. D

    Network refuses to start after upgrade, worked perfectly before and currently works on Debian but refuses to on Proxmox.

    I have a small cluster with 3 machines - all Dell R720s. Proxmox was running well. I updated the least used machine to the latest version and ever since the network has refused to start up. I have been working at this for a week solid. I've read every post on the forum or the internet trying...
  16. A

    [SOLVED] Inconsistent issue with multiple vlans on LACP bond with Catalyst 3650

    Turned out it was a problem on the Cisco end, I don't see where in running-config this is defined but evidently besides defining each vlan interface you also have to do "vlan XX" to activate the layer 2 vlan support for that ID. I think should should be a pretty simple thing to configure, but...
  17. J

    Rate/roast my proposed homelab Ceph network

    I've been messing with Proxmox on and off for years in homelab using old desktops as hosts and lately added a pair of second-hand enterprise servers. Just started messing with Ceph in virtualized hosts, had a lot of fun with that and I want to try running it on metal for home & lab use. However...
  18. Z

    Bare Metal - Provided By Host Networking Issue

    I have been battling with this for over a month any configuration on my VM's does not seem to fix my issue. Below is the image of my network setup provided to me with a deployment of Proxmox from my dedicated server host. eno1 & eno2: These are my 10Gb connections bond0: eno1/eno2 bonded...
  19. Lord Retr0

    Proxmox behind OPNsense VM

    Hello everyone, I would like to secure my Proxmox VE with OPNsense... currently ports 22 & 8006 are not forwarded to OPNsense. How i can configur it ? Here are the "/etc/network/Interfaces" auto lo iface lo inet loopback iface enp193s0f0np0 inet manual iface enx0e689c0ecab2 inet manual...
  20. A

    WLAN with NAT workaround not working

    Hello, First of all I like to mention that I'm aware of the risks and disadvantages of using WLAN under Proxmox, yet I want to do this, because I have build my own Firewall with Pfsense in another VM and I'd like to also embed the WLAN traffic of my local network into it, which is why I need the...

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!