network

  1. How to configure the network to make my virtual machines connected to the internet.

    Hello All, I state that I'm a Proxmox newbie and I'm here to learn how to use this Fantastic System, I have been managing some linux systems, mainly CentOS, for about 15 years so I'm not new to Linux but who knows how many things I still have to learn ?! With this first small premise I...
  2. Internet stuck when uploading large files from client

    Basically when I run a git push the internet on my QEMU VM gets stuck. I can't ping anything on both LAN and WAN, I can only ping the host server. I initially thought this was an Ubuntu 18.04 issue, so I installed Kubuntu 19.10 but the problem persists. What can I do? Configuration: Mobo...
  3. Setting up a bridge?

    So I've installed PVE 6.1-7 on top of Debian 10 (Buster). I used to run PVE 5 earlier that I had installed with the ISO and I did try that with the current version but unfortunately the installer didn't work for some reason. So with the Debian installation comes the fact that the network...
  4. Connection lost when high traffic

    Hello! Proxmox newbie here. Got Proxmox 6, some windows 2016/2019 VM with virtio net driver. When the traffic on the network is high, the connection randomly drop. I must the disable/enable the device and it restart. I've tried everything i could find on the web, but every solution fail. The...
  5. 239.192.142.10

    Hello friends I need help. I have a local network with 5 proxmox nodes and a cluster. observing the network traffic with wireshark I see an excessive traffic that has as a destion: dst: 239.192.142.10 port src: 5404 port dst: 5405 I understand that ports 5404 and 5405 are used for multicast...
  6. Route cache is full

    Hi, I have added 1000 OVSIntPort to my proxmox node. After rebooting i get the following message: linux route cache is full consider increasing sysctl net.ipv[4|6].route.max_size (image attached) Since then I also have a problems connecting via ssh to my VMs from public IP (dnat set up in...
  7. CTs in different VLANs are able to communicate with each other

    Hi, I have following configuration: - vmbr2 OVS bridge (attached image 1) - Bridge ports: vlan01, vlan02 - vlan01 OVSIntPort (attached image 2) - OVS Bridge: vmbr2 - VLAN Tag: 1 - IPv4/CIDR: 99.0.1.254/24 - vlan02 OVSIntPort (attached image 3) - OVS Bridge: vmbr2 -...
  8. Internet Access over all VM

    I might be a Proxmox Newbie which I'm learning more about every day. I've purchased a server with couple of IP addresses then installed Proxmox 5 and started using it. When I create a new VM by default it has no internet so when I finish the setup I enter the VM and set a dedicated IP manually...
  9. Proxmox link through bridged router port

    I have a Ubuntu Server 18.04 trying to connect to the internet via bridged port on my router. when I first installed the server using the normal setting for the VM, getting a Dynamic IP worked great, then when I use the configuration eno3 bridged to MBR01 as example no IP info entered and all...
  10. No Internet on all VMs after update

    Yesterday after I updated and rebooted my Server all of my 3 VMs weren't able to connect back to the Internet. I use a routed setup basically exactly like this https://community.hetzner.com/tutorials/install-and-configure-proxmox_ve/de?title=Proxmox_VE After some digging I figured out that the...
  11. Network interface not up in Opensuse 15.1 CT with Proxmox 6.1

    Hi, I have downloaded the latest Proxmox 6.1 and working around. I wanted to install Opensuse Leap OS 15.1 and 15.0 LXC container. After download and installation of Opensuse LXC template eth0 network interface is not up after the OS boot. I have tried multiple ways to look what was the issue...
  12. Can ping dlink router but no internet

    Hi, I switched my ISP modem/router to D-Link Cobra modem/router and can connect to the internet from different devices but when I tried to ping google.com via server command failed to reach the site but can ping the router successfully. What info do I need to present to you guys to analyise...
  13. Network issue - 2 ip class networks

    Hi everybody, For some reasons I need to setup one of my VM (Netxdom-Prod) as 192.168.1.28 targeting my ISP's internet box (192.168.1.1) whereas in the same time my proxmox is running as 192.168.0.18 through a manageable switch linked to my main router (synology RT1900ac 192.168.0.1) I am...
  14. Every connection is from proxmox host ip

    Hi i have a dedicated at ovh and a few failover ips, i successfully created a few vms with the failover ips but why every connection is from proxmox host ip? so i have 139.99.99.xxx (primary ip) and fail over ip 139.99.xx.xx, i created a vm and ran a minecraft server on the failover ip, but i...
  15. How to configure Proxmox and PfSense VM so that all network requests go through PfSense

    Currently, I have a PfSense VM running on Proxmox. I can access the internet and Proxmox through the LAN port, however, I can't access the internet from the Proxmox Host, or any VMs or containers. I am unsure if this is a problem with PfSense or Proxmox. I have two virtual switches that...
  16. 2 Server intern miteinander verbinden

    Hallo, ich würde gerne 2 CT's miteinander intern über IP's verbinden. Also so das nichts über den Haupt-Host laufen muss. Ich hatte vorher probiert über den Haupt-Host ein internes Netzwerk zu konfigurieren, jedoch hatte dabei nach mehreren Stunden der Server kein Internet mehr und man konnte...
  17. Wie internes Netzwerk korrekt konfiguieren?

    Hallo liebes Forum. Auf unserem Dedizierten Server wollen wir ein internes Netzwerk einrichten. Wir hatten dies bereits eingerichtet gehabt, jedoch funktionierte dies fehlerfrei nur für ein paar Stunden. Manche Container, welche auch eine externe IPv4-Adresse konfiguiert hatten, verloren ihre...
  18. Separated networks, two NIC, two vmbr

    Hi evryone this is my firrst time ;) My english is'n native so... mayby you uderstand me... or not ;) 1. My node has 4xNIC 1GB and 2xNIC 10GB 2. I use 1x1GB for mgmt+data, 1x10GB for Backup, 1x10GB Ceph Working network configuration: auto lo iface lo inet loopback auto eno1 iface eno1 inet...
  19. veth does not come up anymore on several LXC containers

    I have a crazy problem and been searching for hours, I'm stuck and can't make sens of it. Any help to troubleshoot and figure out this further would be greatly appreciated. This is my situation: On a Proxmox VE 6.3-1 (amd64) I have various LXC containers, created from the official...
  20. [SOLVED] Proxmox VM "LAN" Between nodes

    Hello dear Community, I was wondering how do I set up it the Best Way. I have a simple 2 node test Lab. The Problem: I'm running on my first node a pf sense firewall which connects to WAN over vmbr0 and inject its "LAN" to vmbr100 So Basically every VM in vmbr100 is in the "LAN" Now I want to...

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