networking

  1. P

    Creating custom SDN plugin?

    So I'm working on building out a Proxmox cluster to mimic our production environment. This mimicry is requiring a unusual network setup, that while I have it working, has me wanting a cleaner solution. What makes it unusual is that in our production environment, all hosts are fully L2 isolated...
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    Issues with Networking on KVM Guest

    Hello, I'm facing some trouble post-installation with networking on KVM Guests. After spending around ~6 hours on setting up networking to work for containers, it appears that KVM Guests can't connect to the internet. With that said, not all guests don't connect, Windows 10 guests connect with...
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    After Install - host cannot ping gateway or internet

    Hi, I have a fresh install of Proxmox (6.2) running on my host. This was working yesterday, after a full upgrade of proxmox via the GUI. The networking no longer works. Even after fresh installs of both current and past versions of proxmox. A static IP is set to 192.168.0.199 for this MAC. I...
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    Networking no-carrier state down on eth0 and eth1, but only with Proxmox

    I am installing Proxmox 6.3 on an HP Synergy Blade chassis. It has 40Gb qlogic networking modules. When I install Proxmox 6.2 or 6.3, I notice that 2 of my NICs that I've allocated to management never acknowledge their link. I've tried Ubuntu 20.04, CentOS 8.x, VMware 7.0 and stock Debian 10.6...
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    [SOLVED] Directing connection based on domain name

    Hi, have one server running proxmox with at least 2 VMs that I want to be used with different domains(both domain names will point to server). I will have only 1 public IP address so I cannot assign public IP to both VMs and I would like to direct connections based on domain name. How can I...
  6. T

    Network configuration

    Hi, i got some questions about the network configuration of Proxmox. I have a public static IP set for the proxmox server example: 123.123.123.200 I also have an IPv6 range available for free for all servers 2A02:5940:1210:2::/64 Currently the VM's cannot access the internet somehow. And have...
  7. A

    [SOLVED] Hetzner network configuration problem...

    I have 3 server PX62 configured with: - 2 LAN nic (I use them only for local traffic, no internet: for storage network and corosync/proxmox cluster) - 1 WAN nic for internet access with a static IP (on each server) I create a new vSwitch, bonded to the 3 servers and purchase a /27 IP's...
  8. C

    [SOLVED] Fans ramp up on bridge network

    I am using proxmox 6.3-3 as main vm host. I am hosting my firewall in it. The problem is when I am doing network bonding on my nas server (bsd) the proxmox host fans ramp up and it is roaring until I shutdown/restart the nas box. So my current desktop I tried same network bonding and same thing...
  9. P

    Multiple Network Interfaces through One physical port

    Hello, I am extremely new to proxmox and I have been stuck on this issue for hours. Alot of new people seem to be having this problem, but their solutions tend to be different to what I want. I have also tried reading the networking documentation several times but it just makes my head hurt...
  10. H

    [SOLVED] network configuration recommendation

    We are currently testing Proxmox as a replacement for our Esxi farm (No license) where we have 20+ servers. Currently our Esxi hosts have 1 bond (2x1Gib) and 2x1Gib thats multipath iscsi (2 paths each) to our Storage. Bond has VLan tagging and all vms connect to this "bridge". I'm wondering the...
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    [SOLVED] [WORKAROUND FOUND] Routing issues probably self-inflicted. Amateur needs help. Only for patient users.

    Hello everyone. Ugh... I'm afraid to even ask the question... Just to be fair - I am an amateur - I don't even know what I don't know... Ok so I am setting up proxmox but its "complicated". - Normally proxmox runs with LAN device as a main network (internet) interface - in my case its...
  12. M

    HA Design

    I currently have a 4 node HCI cluster that's working quite well. It will be expanding to 8 nodes total and be used for critical services. All of the testing was satisfactory and management was duly impressed. I am reinstalling the cluster from scratch in order to ensure none of the testing bits...
  13. S

    Configured Public IP Stops Working After Some Time

    Hello, I'm struggling with assigning a public IP to a container. I have 4 IP addresses assigned to my host. One is used by the host itself on vmbr0. I can successfully add other IPs to the host if I create additional vmbrX. The container belongs to a private network via vmbr1. Assigning a...
  14. H

    Inbound internet traffic being dropped

    Hey, I have a VM with Nginx on it that I'm trying to test with and although everything else is working, I can see in the VM firewall logs within the Proxmox console that all the traffic from the internet is dropped. The port forwarding on my router is fine and working as I can see the traffic...
  15. D

    VM cant access internet!

    I have a public ip address onb my pc, i installed proxmox on it and created a vm, but i cant configure networking, my vm doesnt have contact with my pc, please anybody help!
  16. B

    Internode Networking Help

    So I have 3 separate Proxmox hosts in a cluster that I'm trying to get communicating together on a separate network. Each host has the main NIC, and a dual-NIC add-in card. Using the dual interface cards, each host is directly connected via one port to the other two hosts. I've been searching...
  17. N

    How to get better performance with pfsense vm

    i've seen many posts regarding this topic but thought i'd add one more about pfsense performance under prox. I'm new to proxmox but I think it's been really great solution so far. I had both pfsense and opnsense running to compare the 2. I was super excited when i fired up the vm and ran...
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    [SOLVED] Network doesn't come up - ifupdown2-pre.service: Failed with result 'exit-code'.

    One of my PVE nodes is failing to start networking on reboot despite having identical configuration as other working nodes. I've seen https://forum.proxmox.com/threads/proxmox-6-network-wont-start.56362/ but I'm not sure why you'd want to mask the service . If I restart ifupdown2-pre.service the...
  19. C

    [SOLVED] [NETWORK] Routing with MASQUERADE from vm lans to wan interface not receiving traffic

    Hello Fellow proxmoxers, I've been using this VE for a while now, and I have to say I have been pretty pleased with it through the years. Alas, now I am facing a weird issue that I cannot seem to find the solution of. PVEVERSION: pve-manager/6.2-10/a20769ed (running kernel: 5.4.44-2-pve)...
  20. G

    pfSense/Proxmox home network diagram and vtnet/bridge/eth concept questions

    Hello all! Having some conceptual questions on setting up pfSense with Proxmox. Is vtnet0/1 referring to the pfSense VM vNIC interfaces for WAN/LAN? When we create two linux bridges on proxmox - is that considered to be on the physical host? In this screenshot, how is eth1 defined for the...

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