networking

  1. URGENT: How to change Default Gateway after installation mistake

    Ive made a little error on choosing the wrong nic during initial Proxmox install and as Ive made VMs now so I dont want to reinstall. Ive two orange flashing nics on my motherboard an Aquantia and Realtek and Proxmox host is using the fastest one (Aquantia) which I now want to use for my VM OS...
  2. VLANs with a single LAN interface

    Hello, I have an OPNsense VM running with a dedicated WAN interface (vmbr1) and the default Proxmox Linux bridge (vmbr0) for LAN. I'm trying to segregate my network like so: WAN -> My public IP VLAN 100 -> 10.10.100.0 LAN -> 10.10.1.0 I only have 2 NICs and I am trying to pass the VLAN using...
  3. Switching to OVS

    This morning I decided to make the jump to ovs. I am at the point of applying my changes, but I wanted to do check a couple of things. After I installed *openvswitch*, I noticed that the openvswitch.service was disabled. I decided to not enable or start the service until I was sure that it would...
  4. New installation won't connect to internet at all

    Just installed proxmox on a desktop, can't ping 8.8.8.8, any websites or anything at all. Also doing apt-get update returns with 'Failed to fetch' any of the debian packets. It also says ifconfig command not found.
  5. 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...
  6. [SOLVED] Unable to access internet over Linux Bridge

    Hi, We have started trying Proxmox recently (considering as an alternative to hyper-v), and are currently having some weird trouble to connect a VM and the internet. We have two internet connections, the first one has a single public static ip and the second one has a block of public static...
  7. Unable to connect to the internet

    Hello, I am trialing Proxmox and connected the server to MikroTik CRS305-1G-4S+IN and extra cable to the ISP modem/router. I can access the server via my laptop to the server but the server unable to talk to the router or modem. With little experience in the networking side, I am wondering what...
  8. Primary cluster NIC stopped communicating

    I can't figure out why this is happening. I have 3 servers and all can ping the backend cluster vlan except for the primary The primary - 192.168.29.14 can ping all other nodes on their other vlans: vlan 29 - cluster comms - no ping vlan 28 - works vlan 10 - works As a result, the cluster won't...
  9. Creating a lab environment for users on the web

    I am working on a project where we are currently attempting to use proxmox to host lab environments. Users can log into a webpage where they can start lab. The system calls proxmox to clone a vm template and create the lab. Users can tinker around with real servers to get a grasp on server...
  10. [SOLVED] Help Please - Ceph Public/Cluster Networks

    Background: 4 nodes 3 nodes have 2x10gbe and 2x1gbe 1 node has 1x10gbe and 2x1gbe 1 x unfi 16xg NEW 1x mikrotik 4 port 10gbe switch I had everything setup and working: 10.0.90.0/28 Proxmox corosync on 1gbe interfaces 10.095.0/28 Ceph cluster AND public network on 10gbe interfaces 10.0.50.0/24...
  11. Routing all Traffic to Bridge/VM

    Hey there, I'm new to Proxmox and bridging in Linux. The thing I try: (IP Config over here) WWW <----> Public IP <-----> NIC <-----> vmbr0 <-------> Proxyserver <--------> vmbr1 <-----> VM's and Proxmox...
  12. VM not connecting /pinging other hosts / Internet

    Hi, can someone help me figure out why my pfSense VM is not connecting to other Proxmox Hosts and to WAN, please? Problem VM (pfSense) on Proxmox VE 6 unable to connect to Internet, or ping any IP beyond the Proxmox Host on which it is running. My unskilled analysis suggests that the packets...
  13. [SOLVED] cluster network and storage network

    hi everyone! We are migrating our server to a different cloud provider. While reading a documentation, i read this: "Storage communication should never be on the same network as corosync!". Our server must have HA and data redundancy/ data high availability (using ceph). The problem is, our...
  14. Adding a secondary NIC for VMs/Containers

    For Proxmox PVE 6, does anyone have a screen shot illustration of how to use the GUI to add in a new NIC, then create a Linux Bond, and lastly a bridge, so that I can dedicate this new bridge for the VM+Container? I am not familiar with Debian command lines. Searched everywhere include Youtube...
  15. Firewall management

    Hi everybody. Say, we have many VM in 10.42.x.y One is on 10.42.a.b Host is on 10.42.1.z and gateway is on 10.42.0.254 We need to reject all traffic from/to 10.42.a.b to/from 10.42.0.0/16 BUT accept all traffic from/to 10.42.a.b to/from 10.42.0.254 Say the rule in plain english, Reject all...
  16. Frame errors in IPv6-in-IPv4 tunnel interface (!)

    folks, I have a LIX container running in Proxmox 4.4-24. My container is: Linux mybox 4.4.134-1-pve #1 SMP PVE 4.4.134-112 (Thu, 05 Jul 2018 12:39:16 +0000) i686 athlon i686 GNU/Linux. This container has multiple IPv6-in-IPv4 tunnels. Some of them work okay. But there is one that doesn't...
  17. Help me with adding static ip for vps

    I need to setup static IP for one of my vps. I have additional IP which is not in my dedicated server range. I have been searching internet for a while and I wasted few days for this. Still I didnt manage to make this to work. Can someone show me soem basic config for host and vm to do this? On...
  18. Problem with additional IPs

    I need some help with setting up additional ip for my vps in proxmox. I was always using proxmox to make 1/2 virtuals to run some software. That's why I never need additional IPs and I was always using default proxmox configuration (vmbr0) so I had same IP as dedicated server on vps, but I was...
  19. Proxmox host cant access internet but vms can

    Hi All, I am sure I have done something silly but cant seem to fix it. Essentially, I run 1 proxmox hypervisor/host that includes a pfsense vm as the home router. The hypervisor has 2 nics, 1 for the WAN port and and for the local network pfSense has a physical nic dedicated to the WAN WAN >...
  20. Proxmox 6.0 renames network card and can not use it

    I just installed a clean proxmox 6.0 on a machine and the network card does no longer function properly. It worked with Proxmox 5.4 Hardware: HP server with 2x gigabit on-board card + HP NC364T PCIe (4x gigabit card, with 2x Intel 82571EB chips). The problem is, that 2 of the 4 ports get...

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