Method and control program for operating a communication terminal for packet-oriented data transmission

A method for operating a communication terminal for packet-oriented data transmission, the method comprising:

• storing a status information for a communication terminal in a memory unit associated with the communication terminal;
• providing the status information with a digital signature calculated from the status information by a private key for an asymmetrical encoding method, wherein the private key is associated with a first control unit associated with the communication terminal for the resolution and/or conversion of network addresses;
• transmitting a request to associate the communication terminal with at least one second control unit if the first control unit fails, the request comprising the status information and the digital signature;
• checking the digital signature;
• and
• associating the communication terminal with the second control unit in the event of a positive check result.

A method for operating a communication terminal for packet-oriented data transmission, comprising:

• storing at least one piece of status information for a communication terminal in a memory unit associated with the communication terminal, wherein
• said status information is provided with a digital signature that is calculated from the status information by means of a private key for an asymmetrical encoding method associated with a first control unit associated with the communication terminal for the resolution and/or conversion of network addresses, wherein,
• if the first control unit fails, a request is transmitted comprising the status information and the digital signature to associate the communication terminal with at least one second control unit and the digital signature is checked, and wherein
• in the event of a positive check result, the communication terminal is associated with the second control unit.

A control program for operating a communication terminal for packet-oriented data transmission, which can be loaded into a working memory of a computing facility and displays at least one block of code, in the execution of which

• at least one piece of status information is stored, for a communication terminal, in a memory unit associated with the communication terminal,
• said status information is provided with a digital signature that is calculated from the status information by means of a private key for an asymmetrical encoding method associated with a first control unit associated with the communication terminal for the resolution and/or conversion of network addresses,
• if the first control unit fails, a request is transmitted comprising the status information and the digital signature to associate the communication terminal with at least one second control unit and a check of the digital signature is initiated,
• in the event of a positive check result, the association of the communication terminal with the second control unit is initiated,
• if the control program is running on the computing facility.