📐 Subnet Conflict Checker
Enter all subnets you plan to use (CIDR format); we automatically detect conflicts with common modem/router/Docker/K8s default ranges.
Common Default Subnet Reference
| Device/Service | Default Subnet |
|---|---|
| China Telecom/Unicom modem | 192.168.1.0/24 |
| TP-Link router | 192.168.0.0/24 |
| Xiaomi router | 192.168.31.0/24 |
| Docker bridge | 172.17.0.0/16 |
| Docker compose default | 172.18-20.0.0/16 |
| K8s Pod CIDR | 10.244.0.0/16 |
| K8s Service CIDR | 10.96.0.0/12 |
| VMware NAT | 192.168.184.0/24 |
Complete 3-node home lab network plan Includes subnet division table, routing rules, and firewall config
View Tutorial