--- title: "KNXnet/IP" canonical: "https://docs.cuesystem.com/space/CVCHELP/522682508/KNXnet%2FIP" format: markdown --- > Macro (toc) --- # Description  KNXnet/IP standard defines the integration of KNX protocol implementations within the IP protocol. It is a standardized protocol that is implemented within KNX devices. Typically, it is represented by the KNX IP Router (KNX IP Interface, KNX IP Gateway, …), which makes an interface between KNX TP (twisted pair) and Ethernet. KNXnet/IP standard defines two IP communication methods – tunneling and routing. Currently, KNXnet/IP routing is supported by CUE.  # **KNXnet/IP Routing**  # Description  KNXnet/IP routing uses a one-to-many communication relationship (multicast), in which KNX data is transferred from one device to one or more other devices simultaneously over an IP network. By default, Multicast IP address 224.0.23.12 and port 3671 is used.   ![image](media://f6fe4c00-47a5-4e6f-a95d-e21c4b53377e) # Properties  The following properties can be changed, but the default value usually works fine.  **MulticastIPAddress**. It is the [Text](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Text) value of the multicast IP address used in your KNX installation. The default value is “224.0.23.12”.  **MulticastIPPort**. It is the [Long](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Long) value of the port used in multicast IP communication. The default value is 3671.  **IndividualAddress. **See [https://cue.atlassian.net/wiki/spaces/CVCHELP/pages/520617985](https://cue.atlassian.net/wiki/spaces/CVCHELP/pages/520617985).  # Read  See [https://cue.atlassian.net/wiki/spaces/CVCHELP/pages/520617985](https://cue.atlassian.net/wiki/spaces/CVCHELP/pages/520617985).  # WriteData  See [https://cue.atlassian.net/wiki/spaces/CVCHELP/pages/520617985](https://cue.atlassian.net/wiki/spaces/CVCHELP/pages/520617985).