If you need to route traffic between local networks and outside it, you need to create router and attach its interfaces to desired local networks.
You can manage routers and their parameters at "Routers" tab in vDataCenter's "Networking" section. (see Img. 1)
To create new router, click on "Add Router" button as shown above.
You need to provide router name and if router must have Internet access, check "Add Internet Connection" checkbox, select external network and check "Activate Source NAT" checkbox. (see Img. 2)
After router creation you can review its details on corresponding page (Img. 3). You can add network interfaces and attach local networks to the router, also you can add static routes and review Public IP address, which was applied to the router, if Internet access was requested during router creation.
To add or remove network interface to the router, click on the button shown in Img. 4 and select corresponding action: either "Add Interface" or "Remove Interface"
For adding interface to the router, you have to select network subnet to which this interface will belong (Img. 5). Note, that only those networks are available, which have Default Gateway enabled. Network interface will be assigned IP address, which was reserved for Default Gateway during network creation, either manually provided or automatically chosen by the system (by default it is first IP address from the subnet)
It is possible to perform simple routing by adding static routes to the router. You can manage static routes, by clicking on the button shown in Img. 6 and select corresponding action: either "Add Route" or "Remove Route".
Static route requires two mandatory parameters: destination subnet, or IP address and nexthop IP address. (Img. 7)
If you wish to verify which Public IP address was assigned to the router in case the Internet access was enabled, you can go to router's details page and click on "Internet Access" tab as shown in Img. 8.