bridge

  1. VLAN-aware, transparent bridges vs traditional bridges with one NIC on Hetzner using vSwitches

    Hello everyone! I have finished setting up two dedicated servers with Proxmox 7 (Debian Bullseye 11) on Hetzner. Both hosts, once in a cluster, are expected to have two type of VMs: 1. Those with a private IP address and an additional public IP address (e.g. web server). 2. Those with just a...
  2. Proxmox Loopback on port

    Hello! Today my DC said "My ports just made an ethernet loop." At the moment of happening we saw lots of MACs on your port that normally do not belong to you (see the listing below). >display mac-address interface ge 1/0/29 Flags: * - Backup BD : bridge-domain Age : dynamic MAC learned...
  3. Error when setting up LACP bond with VLAN Bridge

    I'm trying to set up a VLAN on a active bond interface. We're using the last example on the Proxmox Wiki page, but when applying our config we get the below error: root@n01:~# ifreload -a error: netlink: bond0.611: cannot create vlan bond0.611 611: operation failed with 'Operation not supported'...
  4. Same IPv4 address on every VM

    Hi, I recently bought myself a DELL PowerEdge R470 Server and installed Proxmox 7.0.13 on it. It's working great, but all the virtual machines have the same ipv4 on the internet. They only have different IP addresses on my local network. I looked a bit around but I couldn't figure out how to...
  5. [SOLVED] PVE Config Netzwerk (interfaces) - VLAN, Bond, Trunk...

    Hallo, ich benötige doch etwas Hilfe bei der Konfiguration der Netzwerk-Schnittstellen. Hier einmal die jetzige /etc/network/interfaces: auto lo iface lo inet loopback ### PVE GUI ### Bridge auf eno1 mit statischer IP für PVE iface eno1 inet manual auto vmbr0 iface vmbr0 inet static...
  6. Received packet on fwln interface with own address as source address

    Hello, I know this topic is already discussed thousens times here in the forum, but it seems that my issue is somehow different.. The moment I activate a firewall interface for any of my guests I start receiving so called "alarms" like this one: Oct 01 10:19:26 proxmox-node-1.home.lan kernel...
  7. Bridge + NAT + Firewall

    Hi, I have some problems getting the LXC firewalls managed by Proxmox to work. This is my pve setup: auto lo iface lo inet loopback iface enp9s0 inet manual auto vmbr0 iface vmbr0 inet static address xxx.xxx.xxx.227/32 gateway xxx.xxx.xxx.193 bridge-ports enp9s0...
  8. Linux Bridge reassemble fragmented packets

    Hi to all, we're experiencing a problem with firewall on a proxmox cluster and after few tests it seems it'a a linux bridge problem The packet capture show that fragmented packets passing through the bridge are reassembled and sent out. This is causing us some problems, even if proxmox cluster...
  9. create vm using different subnet ips (KVM)

    Hello! Is there any way to add a different IP subnet and create vm using them? Also I want to use the IPs from the new server to create vm in future servers when I add more servers into the cluster. Here's the situation: the main node where vm will create have 1 /32 IPv4 for a subnet Ex...
  10. Bridge does not inherit MTU from ports in PVE 7 using ifupdown2

    Consider the following example config in /etc/network/interfaces: auto lo iface lo inet loopback auto mgmt0 iface mgmt0 auto mgmt1 iface mgmt1 auto north0 iface north0 mtu 9000 auto north1 iface north1 mtu 9000 auto bond0 iface bond0 bond-slaves north0 north1 bond-miimon 100...
  11. PVE7 - Local bridges not working with IPv6 ULA

    Hi proxmox people ! :-) The way bridges work has really changed in Debian11 / Proxmox 7. When creating a bridge without a slave interface, it works with a private IPv4. But if we assign it an IPv6 of ULA type (fdxx: xxxx: xxxx: xxxx ...), it is impossible to ping this bridge on IPv6. The ip...
  12. Setting Up LACP Bond with VLAN Trunk and Bridge

    Hi I'm having a really hard time trying to get the network setup on Proxmox despite looking at all of the forums and tweaks I've been doing. I have configured a 2Gbps LACP bond on my Netgear GS724T managed switch and is also setup as a VLAN trunk with it's PVID (native VLAN) on 8 so it can...
  13. No ping from PVE host to router (Fritzbox)

    Hello, I have configured bond+bridge+vlan on my PVE host. The relevant network configuration (in /etc/network/interfaces) is this: source /etc/network/interfaces.d/* auto lo iface lo inet loopback iface eno1 inet manual iface enp4s0f2 inet manual iface enp4s0f3 inet manual auto bond0 iface...
  14. [SOLVED] No ping from LAN to PVE host

    Hello, I have configured a bond + bridge connected to a managed switch (D-Link DGS-1100). The connections can be illustrated like this: Router (FritzBox) <--> Switch (D-Link) <--> PVE Host The issue is that I cannot ping the PVE host from LAN. However I can ping the router from PVE Host...
  15. [SOLVED] WebUI doesn't accept perfectly valid and extant interface names

    Hello, the web interface doesn't accept my perfectly valid interface as a bridge port I am auditioning Proxmox as a potential replacement for OVZ for my little org, and I'd like to keep the bespoke NIC naming we already use (through udev rules), as it's unambiguous to the physical reality of...
  16. Can Proxmox bridge two NICs (one has internet access, one does not)

    Due to some restrictions, I have to use two NICs on my Proxmox node in the following way: For example: NIC1: 10.10.10.xxx, just one IP assigned by the facility to the Proxmox Node, able to access internet via their firewall NIC2: 192.168.150.xxx, connected to my own router (192.168.150.1) Can...
  17. [SOLVED] possible bug proxmox 7, active-backup bond with VLAN aware bridge causes no internet

    ------------ UPDATE: ------------ On the working 6.4 server, i used https://pve.proxmox.com/wiki/Upgrade_from_6.x_to_7.0 to update to 7.0-9 and networking stopped working. this seems like a bug ---------------- ORIGINAL: ---------------- hey all, I did a fresh install of proxmox 7 on a...
  18. [SOLVED] OVS bond+bridge: all ports of bond are down

    Hello, I have configured an OVS bond+bridge with 2 ports belonging to the bond. Here's the relevant configuration in /etc/network/interfaces: source /etc/network/interfaces.d/* auto lo iface lo inet loopback auto eno1 allow-vmbr0 eno1 ##eno1 auto enp4s0f3 allow-vmbr0 enp4s0f3 ##enp4s0f3...
  19. Static route required with OVS bond+bridge

    Hello, I have 2 routers in my network, and therefore I need a static route for a dedicated subnet. My idea was to add this line in /etc/network/interfaces: post-up ip route add <network> via <ip router> dev <interface> onlink However the static route is not shown correctly when checking with...
  20. vmbr configure for internet connection

    Hi I have a server which has a public ip address. I would like to have a few vm's on a different subnet which connect to the internet through the proxmox server. I have the vmbr0 auto vmbr0 iface vmbr0 inet static address 10.0.0.2 netmask 255.255.255.0 gateway...

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