158 Chapter 6 Using Multicast Manager208963-BFigure 76 Source Subnets tabTable 53 describes the fields in the Source Subnets tab.Table 53 Source Subnets tab fieldsField DescriptionSubnetAddress Network address that, when combined with thecorresponding SubnetMask value, identifies the sourcemulticast address.SubnetMask Network mask that, when combined with the correspondingSubnetAddress value, identifies the source multicastaddress.