US2002181448A1

5G,4G,3G,2G

Title

Prevention of spoofing in telecommunications systems

Application Number:

US20020175517

Publication Date:

05-12-2002

Current Assignee:

Family ID:

Application Date:

20-06-2002

Publication Country:

US

Priority Date:

22-12-1999

Declaring Company:

Abstract  Abstract

In a packet radio network a packet data address is activated for a terminal for transmitting data packets between the terminal and an external network. Information on the activated packet data address is stored at least in the edge nodes of the network. To prevent spoofing i.e. misrepresentation of sender data the method and network node of the invention comprise checking ( 206) in the node whether the source address of the packet transmitted from the terminal is the same as the packet data address used in the transmission of the packet or does the source address belong to a set of allowed packet data addresses. The packet is transmitted (207) from the node towards the destination address only if the addresses are identical or the source address belongs to the set of allowed packet data addresses.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.