bridge

  1. Z

    Homelab: can't ping VMs behind Router VM

    This is 4th try after getting no responses from Stack Exchange sites [1, 2, 3] and I've been fighting with this issue for ~2 weeks. I really hope someone can help me with this issue. --- I have a setup like this (this diagram is also available here): I'm running a single PVE host in my...
  2. O

    [SOLVED] why does vmbr0 has an IP?

    Hi According to the documentation, Proxmox uses tap devices (layer-2 devices which accept Ethernet frames) along the virtual switch (Vmbr0). I am not understanding why vmbr0 has an IP address, what is it needed for? and what is it used for? The code below is taken from the documentation for the...
  3. T

    [SOLVED] Modify a linux bridge

    Please bear with me I am very new to proxmox and linux in general. I installed proxmox a couple of months ago, created some vms and lxc and everything is going great. By default proxmox created a Linux bridge (vmbr0) using the network card on my motherboard enp7s0. After reading about pfSense I...
  4. R

    [SOLVED] DLNA/UPNP/IGD multicast with Proxmox KVM?

    Hello, I'm trying to get multicast working with Proxmox KVMs on a bridged network (vmbr0). Setup: - Proxmox 7.3-3 on bare metal with 1 Gbit/s NIC connected to AVM Fritz!box. - VM with yunohost + Homeassistant - tried VirtIO-NIC and eth1000-NIC - Firewall off for VM I tried the following...
  5. F

    How to configure 1 NIC, 2 Public IPV4s, one to be used for pfSense?

    Hello. I'm trying to configure my proxmox setup in a way that my main ipv4 is used by the host itself (the routed configuration in here), while the secondary ipv4 is used by the pfSense VM and then propagated by that to other VMs. Based on Hetzner documentations I have changed my...
  6. A

    VM loses connectivity periodically without visible reasons for me

    Hello Community! i have the following topology: NETWORK Layout and the following is my network configuration for all 3 nodes is identical: auto lo iface lo inet loopback iface eno1 inet manual iface eno2 inet manual iface eno3 inet manual iface eno4 inet manual auto vmbr0 iface...
  7. S

    Prevent access to local network from VM.

    I wanna give access to a Linux VM to a friend of mine, but I don't want him to be able to see the other devices on my network. Is there a way I can set it on a separate network so that when it connects, it looks to to him like the VM and the "router" are the only 2 devices? Thank you
  8. J

    Network Namespace not working with PVE Firewall

    Hello! In a VM I created a network namespace "ns_twsgw" (IP a.b.c.82, main IP a.b.c.81) with a bridged macvlan (second MAC address on the virtual ETH IF). I see all the ping packets from the "ns_twsgw" network inside the VM with tcpdump, but I don't see them on the bridge IF (e.g.: fwpr106p0)...
  9. N

    Use VM as router (OPNSense) - Pull Proxmox IP from VM's DHCP

    Hello all, I am trying to set up OPNSense on my Proxmox server and disallow Proxmox from accessing the internet directly, as it's plugged directly into the modem. I am still learning - excuse me if this is a simple request Expectations...
  10. F

    Upgraded pve version and now network adapter issues

    Im currently on version 7.2-7 and kernel 5.15.39-1-pve I have this setup on a dell r620. I have four network adapters. two are 1gig nics and two are 10 gig fiber connections all connected to the same switch a brocade icx6610 which has no vlans setup currently. I bridged all the adapters...
  11. R

    Setup VM LAN to talk to internet in masquerade mode

    I have a single server attached to the internet on a public IP. I have 4 different VM's attached to vmbr1. Their Ip's are 10.0.0.101, 10.0.0.102, 10.0.0.103 and 10.0.0.104. Gateway 10.0.0.254 for all of them. I cannot make then go to the internet. They cannot ping 8.8.8.8 or any other internet...
  12. P

    Proxmox + pfsense

    Hey. I have quite successfully installed pfsense on my proxmox mini PC with 2 interfaces. After the installation of pfsense I've lost access to proxmox. I know how to recover it. My question is how can I access both pfsense and proxmox from 1 LAN port? I can think of two solutions that I've...
  13. T

    VLAN interface - attach to vmbr0 or bond0?

    Hello, So I've got a few servers where they are connected to our ethernet switch via an LACP bond. It's basically like: vmbr0 (vlan aware) -> bond0 -> eno1, eno2 We need to add a vlan interface in order to access our storage network VLAN on the bond. My question is, do I attach the vlan...
  14. V

    [SOLVED] Linux Bridge not working

    Hello all, I have a proxmox 7.1-12 instance and I use an IPv4 bridge there called vmbr1. Unfortunately I can't ping the VM and the host via vmbr1, there seems to be no traffic at all. Host Config: auto lo iface lo inet loopback auto enp9s0 iface enp9s0 inet static address...
  15. S

    PVE Node nicht erreichbar

    Moin zusammen, mein Kollege hat versucht einen VLAN zu erstellen und hat den gleichen VLAN-Tag zugewiesen wie bei dem Bridge und seit dem können wir den PVE nicht über GUI erreichen oder anpingen. Die Vnets.cfg oder Zonen.cfg dateien sind geschützt und können nicht verändert werden. Was kann...
  16. M

    [SOLVED] My VM´s cant reach the internet / cant be pinged since i changed the /etc/network/interface file

    auto ens7f1 iface ens7f1 inet static address 192.168.0.100/8 gateway 192.168.0.1 bridge_ports enp9s0f0 bridge_stp off ethernet-wol g iface enp9s0f1 inet manual iface ens7f0 inet manual auto vmbr0 iface vmbr0 inet manual bridge-ports none...
  17. H

    No external connection randomly

    so I have a problem where randomly vms switch external access like vm with ID 100 i can connect with no problems for some time till randomly i cannot anymore but i can connect vm with id of 101 there is no pattern to this as of right now and there is only one way to force it to switch it back to...
  18. K

    Network Bridge only allows one vm access at a time

    When I turn on multiple vm's only one gets network access. if I shut vm A off then vm B gets network, vice versa. Both vm's have static ip and non conflicting auto mac's, using here's the proxmox hosts interfaces config auto lo iface lo inet loopback iface eno3 inet manual auto eno4 iface...
  19. B

    [SOLVED] VE 7.1-10 slow to forward ARP replies over bridge

    Hi, After starting a container, a PING from inside the container to any address beyond the host it can take up to a few minutes before the replies start flowing. root@deb-11-container:~# ping 172.20.1.1 PING 172.20.1.1 (172.20.1.1) 56(84) bytes of data. From 172.20.1.181 icmp_seq=1 Destination...
  20. C

    Route subnet over gre + lxc

    Hi, guys! I have: Server as router on OVH: a.a.a.a Failover ips on OVH: b.b.b.b/29 Unprotected server (node for VMs/cts) on other ISP (or other OVH server): c.c.c.c I need to create containers on an unprotected server, but so that traffic to the containers themselves or VMs goes through a...

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