| 摘要 |
PROBLEM TO BE SOLVED: To specify a session based on preset information, and to specify a session established between terminals in a packet filtering.SOLUTION: A network testing device includes: a signaling part 61 which transmits and receives an SIP (Session Initiation Protocol) signaling packet to/from a terminal 31 to perform SIP signaling, and establishes the session between the signaling part 61 and the terminal 31; a session information acquiring part 81 for acquiring, from the signaling part 61, an IP (Internet Protocol) address, a port number, and a protocol type which the signaling part has acquired by the SIP signaling; and a packet extracting part 82 for extracting a packet to be transmitted and received between the terminal 11 and the terminal 31 by the use of the IP address, the port number, and the protocol type acquired by the session information acquiring part 81. |
