Add or Remove static routes
Step 1. Log into the vSphere Web Client and navigate to Networking & Security -> NSX Edges -> and double click on the Edge device for which you would like to add a Static Route
Step 2. Select Manage -> Routing -> Static Routes, then click the + sign to add a static route.
Step 3. Specify the Network in CIDR format, as well as the Next Hop, Interface, and MTU then hit OK
Step 4. Then click Publish Changes