| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a packet transfer apparatus, a packet transfer method, a program, and a recording medium, capable of dynamically restricting an access to an unspecified subscriber and an unspecified application, without registering the IP address of a terminal, in advance. <P>SOLUTION: The packet transfer apparatus for transferring a packet transmitted from a first terminal to a second terminal includes: an error message detection means for detecting a packet including an error message transmitted from the first terminal, when the first terminal receives a packet different from a prescribed packet; an address acquisition means for acquiring address information of the second terminal which is the transfer destination of the packet, including the error message; and a transfer restriction setting means, whereby the second terminal sets the restriction of transfer of the packet transferred to the first terminal, on the basis of the address information acquired by the address acquiring means. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
