The below link is the platform admin doc page 42 talks about static routes , the ipforwarding however needs to be enabled to access virtual machines (disregard my comment about turning off ipforwarding apologies i meant static routes , but check forwarding is actually on as that could be your issue).
Is this a new install or reconfigure as this should not be happening.
have a look at the below link on static routes
The commands to effect ipforwarding are below.
Enabling IP forwarding to access System Platform through the
services port
About this task
To gain access to virtual machines on System Platform by connecting a laptop to the services
port, you must enable IP forwarding on System Domain (Domain-0). Enable IP forwarding to
gain access to both SSH and Web Console.
You can set the IP forwarding status to enabled or disabled during System Platform installation.
The system enables IP forwarding by default. To enable or disable IP forwarding, use the
following procedure.
Note:
For security reasons, always disable IP forwarding after finishing your task.
Procedure
1. To enable IP forwarding:
a. Start an SSH session.
b. Log in to System Domain (Domain-0) as administrator.
c. In the command line, type service_port_access enable and press
Enter.
2. To disable IP forwarding:
a. Start an SSH session.
b. Log in to System Domain (Domain-0) as administrator.
c. In the command line, type ip_forwarding disable and press Enter.
An alternative to the above command is service_port_access disable.
ACSS (UC/SBCE/SM/SME)
Not that they mean a thing anymore , get a brain dump pass the test crash the system.