A read-create compliance statement for routers running IGMPv1 [RFC1112] and implementing the MGMD MIB. IGMPv1 routers only support the IPv4 address type. Non-accessible index objects that only need IPv4 support are: OBJECT mgmdRouterCacheAddressType SYNTAX InetAddressType { ipv4(1) } OBJECT mgmdRouterCacheAddress SYNTAX InetAddress (SIZE(4)) OBJECT mgmdRouterInterfaceQuerierType SYNTAX InetAddressType { ipv4(1) } OBJECT mgmdInverseRouterCacheAddressType SYNTAX InetAddressType { ipv4(1) }