# IPv4 Entity Keys Keys that correspond to values in the `kSCEntNetIPv4` dictionary. ## Topics ### Constants [`let kSCPropNetIPv4Addresses: CFString`](/documentation/SystemConfiguration/kSCPropNetIPv4Addresses-swift.var) The IPv4 key `Addresses`, whose value is of type `CFArray`, containing elements of type `CFString`. [`let kSCPropNetIPv4ConfigMethod: CFString`](/documentation/SystemConfiguration/kSCPropNetIPv4ConfigMethod-swift.var) The IPv4 key `ConfigMethod`, whose value is of type `CFString`. [`let kSCPropNetIPv4DHCPClientID: CFString`](/documentation/SystemConfiguration/kSCPropNetIPv4DHCPClientID-swift.var) The IPv4 key `DHCPClientID`, whose value is of type `CFString`. [`let kSCPropNetIPv4Router: CFString`](/documentation/SystemConfiguration/kSCPropNetIPv4Router-swift.var) The IPv4 key `Router`, whose value is of type `CFString`. [`let kSCPropNetIPv4SubnetMasks: CFString`](/documentation/SystemConfiguration/kSCPropNetIPv4SubnetMasks-swift.var) The IPv4 key `SubnetMasks`, whose value is of type `CFArray`, containing elements of type `CFString`. [`let kSCPropNetIPv4DestAddresses: CFString`](/documentation/SystemConfiguration/kSCPropNetIPv4DestAddresses-swift.var) The IPv4 key `DestAddresses`, whose value is of type `CFArray`, containing elements of type `CFString`. [`let kSCPropNetIPv4BroadcastAddresses: CFString`](/documentation/SystemConfiguration/kSCPropNetIPv4BroadcastAddresses-swift.var) The IPv4 key `BroadcastAddresses`, whose value is of type `CFArray`, containing elements of type `CFString`. ### IPv4 Configuration Method Values [`let kSCValNetIPv4ConfigMethodAutomatic: CFString`](/documentation/SystemConfiguration/kSCValNetIPv4ConfigMethodAutomatic-swift.var) The constant value Automatic. [`let kSCValNetIPv4ConfigMethodBOOTP: CFString`](/documentation/SystemConfiguration/kSCValNetIPv4ConfigMethodBOOTP-swift.var) The constant value BOOTP. [`let kSCValNetIPv4ConfigMethodDHCP: CFString`](/documentation/SystemConfiguration/kSCValNetIPv4ConfigMethodDHCP-swift.var) The constant value DHCP. [`let kSCValNetIPv4ConfigMethodINFORM: CFString`](/documentation/SystemConfiguration/kSCValNetIPv4ConfigMethodINFORM-swift.var) The constant value INFORM. [`let kSCValNetIPv4ConfigMethodLinkLocal: CFString`](/documentation/SystemConfiguration/kSCValNetIPv4ConfigMethodLinkLocal-swift.var) The constant value LinkLocal. [`let kSCValNetIPv4ConfigMethodManual: CFString`](/documentation/SystemConfiguration/kSCValNetIPv4ConfigMethodManual-swift.var) The constant value Manual. [`let kSCValNetIPv4ConfigMethodPPP: CFString`](/documentation/SystemConfiguration/kSCValNetIPv4ConfigMethodPPP-swift.var) The constant value PPP. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)