mac address

  1. [SOLVED] MAC Addressing in Linux Bridge and VM

    Hi Proxmoxers, Running a few VMs and CTs on Proxmox 6.2-4 on a server with multiple NICs. NIC ports are assigned to Linux Bridges and then connected individually to a particular VM or CT via the hardware GUI. I have noticed that in pve (in shell when I run ifconfig), the MAC address assigned...
  2. Irrelevant packets as present for every VM on proxmox-host

    My network has some issues. When the network traffic increases, the network connections tend to be very slow even though it's an 10GB network. I'm not sure whether it's proxmox-related or not. Example: VMx = virtual machine x VHx = proxmox virtual host x VM1 = 192.168.0.51 (E2:A9:CC:75:79:AF)...
  3. Duplicate MAC Addresses Generated for Bonded Interfaces on Identical Server Hardware

    Greetings fellow Proxmox users and moderators. First I want to thank the Proxmox team and developers for creating an amazing product. I have been a Proxmox user for only about 2 years but a Linux admin for about 15 years. Regrettably I have not created a forum account until now, however I...
  4. Kickstart files and MAC-addresses

    Stumbled across something interesting last week that took me a while to understand. I have a number of VMs that use PXE-boot to install Centos7. I serve custom kickstart files from a local tftp server. Part of the kickstart file has an %include section that points to a local http server by a...
  5. Proxmox 6 lxc container not generate mac address error message in syslog

    Hello, I have Proxmox 6 Server with LXC Containers. If I added some network adapter to one container everything works fine, mac address is on default settings (auto). But no mac address will generate. In syslog I have this error message: systemd-udevd[22359]: link_config: autonegotiation is...
  6. When I reboot LXC in proxmox, LXC's mac address will change automatic.

    I had update proxmox to latest version just now. It occurs problem. When I reboot LXC, LXC's mac address will change automatic. It makes me impossible to bind static address.
  7. Ansible proxmox_kvm gettting MAC address for PXE

    Anyone successfully used the Ansible module of proxmox_kvm to get a MAC address of a VM for a PXE install? Here is the task code: - name: Get Facts proxmox_kvm: api_user: "root@pam" api_password: test api_host: test node: test name: test validate_certs: no...
  8. Use one main MAC address of the server for all IP machines

    I have a server from hetzner, and install proxmox on it. My configuration is simple, and it's my "/etc/network/interfaces" file: auto lo iface lo inet loopback iface enp6s0 inet manual auto vmbr0 iface vmbr0 inet static address XX.YY.ZZ.TT netmask 255.255.0.0 gateway...
  9. OPNsense CARP/MacSpoofing issues

    Ì'm having some issues with macspoofing on Proxmox as my CARP Master/Backup VIP's are flapping in state between the servers and stay that way they are set. I have checked: Disable hardware checksum offload Disable hardware TCP segmentation offload Disable hardware large receive offload...
  10. Duplicate MAC address on LXC clone, but not VM

    When a Virtual machine is cloned, Proxmox deals with the MAC address by assigning a new one so there is no conflict. However, when cloning a LXC (by backup and restore to a new container), this does not happen. It would be nice to have feature that provider either: 1. An option to...
  11. VM and CT not accessible VS MAC Prefix address

    Hi. I 've got some troubles with VM and CT haven't access to network. After figure out, i found the trouble. It was a MAC prefix trouble. In fact I typing '69' for making sure to do not have some hardware conflict. But it doesn't support i think. I replace it by a simple '00' and all works...
  12. [SOLVED] Proxmox sets the same MAC to the bridge

  13. NDP and IPv6 on Promox hosted at OVH

    Hey guys! So here is our config A dedicated server at OVH. Ipv4: for the proxmox host (also has 1 ipv6) We also have /64 of ipv6. So OVH blocks NDP, and does not give any Mac address for ipv6. If we give an IPv4 for a container, we can use ipv6, since it will the ipv4 MAC address. We want...

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