Communication control method, relaying method and relaying device
AssigneeFujitsu Limited
InventorsMasaaki NORO, Noriyuki Fukuyama
Life of this patent
Estimating the term…
Abstract
Method and device for heightening communications security. Gateway 3 receives packet P1 from caller terminal 1a, and creates and transmits to receiver terminal 1b packet P2, in which destination IP address, source IP address, destination port, source port, and session ID for packet P1 are rewritten. Gateway 3 also receives packet P3 from receiver terminal 1b, and creates and transmits to caller terminal 1a packet P4, in which destination IP address, source IP address, destination port, source port, and session ID for packet P3 are rewritten. Because communications between every terminal are identifiable according to session ID, a plurality of communications through the same port may be supported which is favorable security-wise.
Claims9
1-11. (canceled)
A communications control method utilized by a computer connected via a network to a first communications terminal T1, a second communications terminal T2 and a relaying terminal that relays communications between the two terminals, the communications control method including:
- a communication-request acceptance step of accepting from the first communications terminal T1 a request for communication with the second communications terminal T2;
- a request notification step of notifying the second communications terminal T2 of the communication request;
- a first reporting step of receiving from the first communications terminal T1 and reporting to the relaying terminal first communications identification information S1 identifying a communication that the first communications terminal T1 carries out with the relaying terminal;
- a second reporting step of notifying the relaying terminal of the communications request, and receiving from the relaying terminal and reporting to the first communications terminal T1 second communications identification information S2 for identifying a communication that the relaying terminal carries out with the first communications terminal T1;
- a third reporting step of notifying the relaying terminal of the communications request, and receiving from the relaying terminal and reporting to the second communications terminal T2 third communications identification information S3 for identifying a communication that the relaying terminal carries out with the second communications terminal T2;
- and
- a fourth reporting step of receiving from the second communications terminal T2 and reporting to the relaying terminal fourth communications identification information S4 identifying a communication that the second communications terminal T2 carries out with the relaying terminal.
A communications control device connected via a network to a first communications terminal T1, a second communications terminal T2, and a relaying terminal that relays communications between the two terminals, the communications control device comprising:
- a communication-request acceptance means for accepting from the first communications terminal T1 a request for communication with the second communications terminal T2;
- a request notification means for notifying the second communications terminal T2 of the communication request;
- a first reporting means for receiving from the first communications terminal T1 and reporting to the relaying terminal first communications identification information S1 identifying a communication that the first communications terminal T1 carries out with the relaying terminal;
- a second reporting means for notifying the relaying terminal of the communications request, and receiving from the relaying terminal and reporting to the first communications terminal T1 second communications identification information S2 for identifying a communication that the relaying terminal carries out with the first communications terminal T1;
- a third reporting means for notifying the relaying terminal of the communications request, and receiving from the relaying terminal and reporting to the second communications terminal T2 third communications identification information S3 for identifying a communication that the relaying terminal carries out with the second communications terminal T2;
- and
- a fourth reporting means for receiving from the second communications terminal T2 and reporting to the relaying terminal fourth communications identification information S4 identifying a communication that the second communications terminal T2 carries out with the relaying terminal.
A communications control computer product utilized by a computer connected via a network to a first communications terminal T1, a second communications terminal T2, and a relaying terminal that relays communications between the two terminals, the communications control computer product for making the computer function as:
- a communication-request acceptance means for accepting from the first communications terminal T1 a request for communication with the second communications terminal T2;
- a request notification means for notifying the second communications terminal T2 of the communication request;
- a first reporting means for receiving from the first communications terminal T1 and reporting to the relaying terminal first communications identification information S1 identifying a communication that the first communications terminal T1 carries out with the relaying terminal;
- a second reporting means for notifying the relaying terminal of the communications request, and receiving from the relaying terminal and reporting to the first communications terminal T1 second communications identification information S2 for identifying a communication that the relaying terminal carries out with the first communications terminal T1;
- a third reporting means for notifying the relaying terminal of the communications request, and receiving from the relaying terminal and reporting to the second communications terminal T2 third communications identification information S3 for identifying a communication that the relaying terminal carries out with the second communications terminal T2;
- and
- a fourth reporting means for receiving from the second communications terminal T2 and reporting to the relaying terminal fourth communications identification information S4 identifying a communication that the second communications terminal T2 carries out with the relaying terminal.
A computer-readable recording medium on which is recorded a communications control program utilized by a computer connected via a network to a first communications terminal T1, a second communications terminal T2, and a relaying terminal that relays communications between the two terminals, the computer-readable recording medium on which is recorded a communications control program for executing:
- a communication-request acceptance step of accepting from the first communications terminal T1 a request for communication with the second communications terminal T2;
- a request notification step of notifying the second communications terminal T2 of the communication request;
- a first reporting step of receiving from the first communications terminal T1 and reporting to the relaying terminal first communications identification information S1 identifying a communication that the first communications terminal T1 carries out with the relaying terminal;
- a second reporting step of notifying the relaying terminal of the communications request, and receiving from the relaying terminal and reporting to the first communications terminal T1 second communications identification information S2 for identifying a communication that the relaying terminal carries out with the first communications terminal T1;
- a third reporting step of notifying the relaying terminal of the communications request, and receiving from the relaying terminal and reporting to the second communications terminal T2 third communications identification information S3 for identifying a communication that the relaying terminal carries out with the second communications terminal T2;
- and
- a fourth reporting step of receiving from the second communications terminal T2 and reporting to the relaying terminal fourth communications identification information S4 identifying a communication that the second communications terminal T2 carries out with the relaying terminal.
19-23. (canceled)
Dependencies are inferred from the claim text.