Werk #1000004: Stable IP addresses on Checkmk Cloud Ingress
| Component | Control plane |
| Title | Stable IP addresses on Checkmk Cloud Ingress |
| Date | Apr 13, 2026 |
| Level | Prominent Change |
| Class | New Feature |
| Compatibility | Compatible - no manual interaction needed |
The Load Balancers (Checkmk Cloud Ingress) for commercially licensed sites in the EU and US now have fixed, stable IP addresses. If you need to allowlist traffic from your Checkmk Relay or Push Agent to your Checkmk SaaS Client Site (e.g., for firewall or security group rules), use the following IPs:
Production EU
IPv4: - 51.102.122.89 - 63.179.228.200 - 63.182.184.85
IPv6: - 2a05:d014:63b:d801:a7ee:e8f7:2768:3dc8 - 2a05:d014:63b:d800:b783:f7de:4bc2:9251 - 2a05:d014:63b:d802:f816:809b:17fc:8ec2
## Production US
IPv4: - 18.210.80.35 - 3.227.113.41 - 54.224.144.147
IPv6: - 2600:1f18:7613:7902:a070:5d0e:9ada:35d3 - 2600:1f18:7613:7900:1171:2afd:f5e9:6b29 - 2600:1f18:7613:7901:6393:5c32:a9f2:911e