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1. (WO2018108261) HANDOVER IN COMMUNICATIONS NETWORK

Pub. No.:    WO/2018/108261    International Application No.:    PCT/EP2016/080936
Publication Date: Fri Jun 22 01:59:59 CEST 2018 International Filing Date: Thu Dec 15 00:59:59 CET 2016
IPC: H04L 29/06
H04W 12/08
H04L 9/32
H04W 36/00
Applicants: NOKIA TECHNOLOGIES OY
Inventors: VESTERINEN, Seppo Ilmari
MAEDER, Andreas
GODIN, Philippe
Title: HANDOVER IN COMMUNICATIONS NETWORK
Abstract:
To validate a source node and/or path, a header of a data packet comprises a source node address, a data path identifier and a token. The token is calculated using a secret shared by the source node and a receiving node that receives the data packet. The receiving node checks whether the source node address is in a list of allowed addresses, calculates a further token by using the secret and the received data path identifier, and discards the data packet if the source node address is not in the list or if the token is different from the further token.