摘要:
A device (D) is dedicated to processsing data frames for satellite terminals (ST) of a satellite communication network, connected to at least one logical bus (B) defined on a satellite connection. The device (D) comprises processing means (MT) adapted, on receiving packets of a data frame from a first communication equipment (UE11), connected to a first satellite terminal (ST1) coupled to said device (D), and addressed to a second communication equipment (UE2), connected to a second satellite terminal (ST2), to encapsulate each packet received in a level 2 transmisstion protocol header (of the ISO layered model) comprising at least the identifier of the bus to which the second satellite terminal (ST2) is connected and the communication identifier of the first satellite terminal (ST1), before it is transmitted to the satellite (SAT), via the connection.
摘要:
The invention relates to a telecommunication system including a plurality of terminals divided into groups such that within each group each terminal can send multidestination messages to the other members of the group. Each terminal of a group is associated with encryption and decryption means so that each terminal can send multidestination messages that can be decrypted only by the other terminals of the group. The system includes a central server for distributing to each encryption and decryption means keys for secure transmission of communications within each group.