akrasnov-drv opened a new issue, #11607: URL: https://github.com/apache/cloudstack/issues/11607
### problem I faced a weird issue when CloudStack assigns to VM IP used by vRouter. I tried removing all VMs, removing vRouter, but it did not help. My configuration - shared network with separate management and guest subnets Guest network IPs: <img width="1205" height="313" alt="Image" src="https://github.com/user-attachments/assets/7a3b933a-34bc-4349-b1e6-0c4ec162f96e" /> Still on new VM start I'm getting <img width="1419" height="182" alt="Image" src="https://github.com/user-attachments/assets/5ed30d01-0735-4e36-9f8e-f7b5db751187" /> As you can see on attachments 10.10.126.13 is used by vRouter but still assigned to VM ### versions CloudStack 4.21.0.0 KVM Ubuntu 24 vRouter Software 4.21.0.0, template 4.20.1 I can provide mysql data on request ### The steps to reproduce the bug 1. Configured CS with shared network (dns, dhcp, metadata server) - v4.19 2. Defined guest subnet (no vlan) 3. upgraded to 4.20, then to 4.21 (I have not noticed if already had an isse on previous versions, but can't tell for sure it started just with 4.21) 3.Faced the issue of VM not getting name and IP from vRouter, and finally found duplicate IP assignment. ### What to do about it? CS should not assign IPs in use. I hardly understand why it happens at all. As you can see CS is aware that the IP is allocated already. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@cloudstack.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org