GitHub user SviridoffA created a discussion: Please help!! Reserving IP in 
isolated network

Hello everyone! Maybe someone can suggest some kind of workaround for me. I 
have an isolated network where a Kubernetes cluster is running, which I can't 
stop. I need to add a physical server to this isolated network (setting up a 
VLAN on the switch port). I'm trying to reserve IP addresses for the static 
address of this server via CIDR. My subnet is 10.1.1.0/24, and if I try to set, 
for example, 10.1.1.0/25, I get the network split in half, but right now in the 
half that I'm trying to free up from the DHCP pool, there are already working 
Kubernetes nodes. Unfortunale? I don't manage this k8s cluster, and I can't do 
any changes in this cluster. Is there any workaround to solve this situation? 
For example, can I somehow expand the network live? Maybe someone has done this 
through the database (I understand it's not the best practice), or is there 
some more proper way?

GitHub link: https://github.com/apache/cloudstack/discussions/12701

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