From the navigation tree, double-click IP Routing.
In the IP Routing tree, double-click PIM.
In the work area, click the Virtual Neighbors tab.
In the toolbar, click Insert.
The Insert Virtual Neighbors dialog box appears.
In the NeighborIfIndex field, click VLAN.
Select the desired VLAN, and then click OK.
In the NeighborAddress field, enter the IP address of the virtual neighbor.
Click Insert.