SSVM Cannot Mount Secondary Storage on Isolated Storage Network Due to Incorrect Route

I am configuring CloudStack 4.22.1.0 and have set up an isolated Storage Network on VXLAN 500 with the subnet **192.168.16.0/24**. My secondary storage (NFS) server is configured with the IP address **192.168.16.16**.

This is the first time I have configured secondary storage on a dedicated storage network. In my previous deployments, both the management and storage traffic shared **cloudbr0**, and everything worked correctly.

After completing the configuration, the SSVM Agent Status remained **"Connecting"**. I logged into the SSVM via SSH and checked the routing table. I found that the route for **192.168.16.0/24** was incorrectly pointing to the **management gateway (10.10.100.1)** instead of the **storage gateway (192.168.16.1)**. Because of this incorrect route, the SSVM was unable to mount the NFS secondary storage.

To verify the issue, I manually deleted the incorrect route and added the correct one:

* Incorrect route: `192.168.16.0/24 via 10.10.200.1 dev eth1`
* Correct route: `192.168.16.0/24 via dev eth3`

**eth3** is the new interface automatically created in SSVM where IP address 192.168.16.192/24 has been assigned.

As soon as I corrected the route, the SSVM Agent Status turned **green**, the secondary storage mounted successfully, and image downloads started normally.

However, after deleting and recreating the SSVM, the same issue occurred again. The incorrect route was added automatically, causing the Agent Status to return to **"Connecting"**. After manually replacing the route with the correct one, everything worked normally again.

Am I missing any configuration? Is this expected behavior, or could this be a bug in CloudStack? How can I permanently ensure that the SSVM uses the storage gateway (**192.168.16.1**) for the **192.168.16.0/24** network instead of the management gateway?

Tạo lại SSVM với Storage Network bị cô lập, sau đó kiểm tra bảng định tuyến và các interface của nó trong khi Agent Status là Connecting. So sánh route được tự động thêm với cấu hình của Storage Network; hoàn tất khi lưu lượng 192.168.16.0/24 sử dụng eth3, các mount lưu trữ NFS phụ hoạt động và Agent Status chuyển sang màu xanh.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.