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Single-NIC architecture
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Full plan
All prerequisites
All test cases
🧭
Architecture & setup diagrams
Setup order
Single-NIC architecture
Capability matrix
SINGLE-NIC ARCHITECTURE — ONE TRUNK PORT, ALL FUNCTIONS
Switch (trunk port)
native VL1 + tagged VL10,20,30
Trunk
eno2 (enp7s0) — sole NIC
IP: 192.168.1.50 ⚠ ON HETZNER - NEVER bridge directly!
OVN-Kubernetes
Pod network
eno2.10
VLAN 10
eno2.20
VLAN 20
eno2.30
VLAN 30
MetalLB speaker
ARP eno2/br-ex
OVN-K localnet
physical LAN via br-ex
br-vlan10
192.168.10.0/24
br-vlan20
192.168.20.0/24
br-vlan30
10.30.0.0/24
🖥️
VM masquerade
OVN·eth0
🖥️
VM VLAN10
br-vlan10
🖥️
VM VLAN20
br-vlan20
🔌
VM multi-NIC
masq+vl10+vl20
⚒️
MetalLB IPs
.200 .201 .202
☁️
HCP worker
KubeVirt OVN-K
■ OVN-K/HCP
■ VLAN 10
■ VLAN 20
■ VLAN 30
■ MetalLB
■ OVN-K localnet/Multus