Fixed IP addresses for Checkmk Cloud Ingress (EU & US)
Checkmk Cloud Ingress now provides fixed, stable IP addresses for EU and US regions. See Checkmk Werk #1000004 for details.
LAST TESTED ON CHECKMK CLOUD
Overview
Checkmk Cloud Ingress load balancers now use fixed, stable IP addresses for commercially licensed sites in both EU and US regions. This allows you to reliably configure firewall rules or security groups when sending data from a Checkmk Relay or Push Agent to your Checkmk Cloud client site.
When do you need this?
Use these IP addresses if you need to allowlist outbound traffic from your environment to Checkmk Cloud, for example:
Push Agent sending data to a cloud site
Checkmk Relay forwarding data
Environments with strict firewall or security group rules
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
Additional notes
These IPs are stable and intended for allowlisting.
Make sure to allow all listed IPs for your region to avoid connectivity issues.
If you are using IPv6, ensure your environment supports it properly before relying on those addresses.