Second Public IP for Cloud Router in Proxmox

Time to expand my old Proxmox configuration, which served me well for the past two years, with a new public IP, a cloud router, and a separate private subnet.. The goal:

  • Keep old existing IP, subnet, DHCP, etc
  • Keep controlling proxmox from old IP
  • Add a new Public IP, new private subnet
  • Install some easy to manage cloud router, iptables is so painful.

Oneprovider delivers failover IPs – ARP based, which means that static IP with exact MAC address will be used. Only 1 NIC. Every router needs at least 1 WAN & 1 LAN. WAN will connect directly to Public vmbr0 bridge. New vmbr3 will be created and used for LAN. Public failover IP: 123.123.123.123

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Start Kubernetes cluster on Debian 13 with kubeadm v1.35 on proxmox VM in 2026

Kubernetes cluster for a small lab installed on Debian virtual machines. Set-up just one instance first, clone it later. One control plane, two worker nodes. Official Documentation

Requirements:

  • Debian 13 trixie
  • Network connectivity between the VMs. Every VM has unique MAC address, IP address, hostname
  • 2 GB or more of RAM per machine (any less will leave little room for your apps).
  • 2 CPUs or more for control plane machines.
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