JP2002183024A - System and method for adding information - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system and a method which can securely deliver information of advertisement, etc., to a computer through a communication network without any troublesome operation. SOLUTION: This information addition system is equipped with a reception part which receives packet information, a discrimination part which discriminates whether information should be added to the packet information according to a combination of reception date and time information, transmission source and destination addresses, and a port number, a message part storage part which stores a message part of the packet information, an additional database part wherein the combination and the information which should be added to the packet information are related and stored, and a transmission part which takes the information to be added corresponding to the combination out of the additional information database part, adds the taken-out information to the message part stored in the message part storage part to reconstitute a packet, and then sends the packet to the transmission destination address.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information addition system, an information addition method, a recording medium, and a program for adding information such as an advertisement to information transmitted and received via a communication network.

[0002]

2. Description of the Related Art At present, online advertisements using the Internet include the display of "banner advertisements" on a homepage and the "advertisement distribution" using dedicated software. The method of displaying a "banner advertisement" on a homepage is a method mainly performed by an Internet site operator for a homepage operated by the company, and a user accesses the homepage on which a "banner advertisement" is displayed. This is the first thing the user will notice. However, given the vast number of sites currently presented on the Internet, this method has a very low probability of the user reaching that page and seeing the advertisement. In addition, when an advertisement is to be made by this method, a complicated operation of displaying a "banner advertisement" on all necessary pages is required.

[0003] On the other hand, a method of advertising by "advertisement distribution" using dedicated software is a method mainly performed by an Internet connection provider (provider) to obtain advertising revenue. The price of providing the right to do so is to install dedicated software on the computer of the user who has joined the provider. However, according to this method, the dedicated software must be installed on all users' computers, and it is monitored whether the dedicated software is properly installed on the computers used by all users. Needed.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a system and a method capable of reliably transmitting information such as advertisements to a computer via a communication network without performing complicated operations. It is.

[0005]

That is, in the information adding system of the present invention, a receiving section for receiving packet information including a source address, a destination address, and a port number; reception date and time information; A discriminating unit for discriminating whether or not the packet information to which information is to be added, based on a combination of at least one of a source address and a destination address of the obtained packet information and the port number;
A message part storage unit for storing a message part in the received packet information when it is determined that the information is packet information to be added; and storing the combination and information to be added to the packet information in association with each other. Extracting additional information corresponding to the combination from the additional information database, adding the extracted information to a message stored in the message storage,
There is provided an information adding system comprising: a transmitting unit that reconfigures the message part to which information is added into a packet and transmits the packet to the destination address.

Further, in the information addition system of the present invention, a receiving unit for receiving packet information including a source address, a destination address, and a port number; receiving date and time information; a source of the packet information received by the receiving unit; A first discriminator for discriminating whether or not the packet information is information to be added, based on a combination of at least one of an address and a destination address, and the port number; A message section storing section for storing a message section in the received packet information when it is determined that the packet information should be added; associating the combination, the feature of the message section with information to be added to the packet information; An additional information database unit stored and stored; a second determination unit configured to determine whether the message unit stored in the message unit storage unit has the characteristic; In parts, if the message part is determined to have the characteristic, from the additional information database section,
The information to be added corresponding to the feature of the combination and the message part is extracted, the extracted information is added to the message part stored in the message part storage unit, and the message part with the added information is re-packed into a packet. And a transmitting unit configured to transmit to the transmission destination address.

In the information adding method of the present invention, a step of receiving packet information including a source address, a destination address and a port number; receiving date and time information; a source address of the packet information received in the receiving step; A discriminating step of discriminating whether or not the packet information is information to be added based on a combination of at least one of the transmission destination addresses and the port number; A storage step of storing a message part in the received packet information; an addition corresponding to the combination from an additional information database part storing the combination and information to be added to the packet information in association with each other The information to be taken out is taken out, the message part stored in the message part storage unit is added to the taken out information, and the information is added. Reconfigure the Education to the packet, information adding method and a transmitting step of transmitting to the destination address is provided.

In the information adding method according to the present invention, a step of receiving packet information including a source address, a destination address and a port number; receiving date and time information; a source address of the packet information received in the receiving step; , And at least one of the transmission destination addresses and the port number, a first determining step of determining whether or not the packet information is information to be added; and, in the first determining step, adding the information. A storage step of storing a message part in the received packet information when determined to be packet information; storing the combination, characteristics of the message part, and information to be added to the packet information in association with each other; A second discriminating step of discriminating whether or not the message section stored in the storing step has the characteristic by using the additional information database section which is stored in the storage section; In step, if the message part is determined to have the characteristic, from the additional information database section,
The information to be added corresponding to the feature of the combination and the message portion is extracted, and the extracted information is added to the message portion stored in the message portion storage unit, and the message portion to which the information is added is converted into a packet. And a transmitting step of reconfiguring and transmitting to the destination address.

In a computer readable recording medium according to the present invention, a step of receiving packet information including a source address, a destination address and a port number; receiving date and time information; packet information received in the receiving step; Determining whether or not the packet information is information to be added based on a combination of at least one of a source address and a destination address of the packet and the port number; If it is determined, the storage step of storing the message portion in the received packet information; from the additional information database unit that stores the combination and information to be added to the packet information in association with The information to be added corresponding to the combination is fetched, and the message information stored in the message message storage unit is stored in the message unit. And a program for causing a computer to execute a transmitting step of reconfiguring the message portion to which the information is added into a packet and transmitting the packet to the transmission destination address. A recording medium is provided.

[0010] In the program of the present invention, a step of receiving packet information including a source address, a destination address and a port number; reception date and time information; a source address of the packet information received in the receiving step; A discriminating step of discriminating whether or not the packet information is information to be added based on a combination of at least one of the transmission destination addresses and the port number; A storage step of storing a message part in the received packet information; an addition corresponding to the combination from an additional information database part storing the combination and information to be added to the packet information in association with each other The information to be taken out is taken out, and the taken out information is added to the message part stored in the message part storage unit, and the information is added. Reconfigure the serial electrostatic Education in packets, a program for executing the outgoing step of transmitting to the destination address on the computer is provided.

According to the present invention, packet information including a source address, a destination address, and a port number is received,
Whether or not to add information to the packet information is determined by a combination of at least one of the reception date and time information, the source address of the received packet information, and the destination address, and the port number. Whether or not information should be added to packet information can be controlled by the source address, destination address, and port number. For example, it is possible to add information for a limited time, add information only to packet information transmitted to a specific address, or add information only to packet information transmitted from a specific group.

In addition, since it is determined whether or not the message part of the packet information has a characteristic as necessary, it is controlled whether information should be added to the packet information according to the content of the message part. Can also. For example, information can be added only to packet information including a predetermined keyword.

The packet information to which information is to be added is reconstructed into a packet after the message portion is stored in the message portion storage portion, and the information is added to the stored message portion.
Since the information is transmitted to the transmission destination address, the added information can reliably reach the transmission destination computer.

According to the present invention, as described above, after determining whether or not to add information to the packet information, at least one of the reception date / time information, the source address, and the destination address, and the port number The information to be added corresponding to the combination is extracted from the additional information database unit stored in association with the combination of the packet information and the information to be added to the packet information, and the message unit stored in the message unit storage unit is retrieved. In order to add the extracted information, the information to be added includes the reception date and time information, the source address, the destination address,
It can be set according to information such as a port number.

Further, according to the present invention, information to be added stored in the additional information
In addition to the combination, the information to be added is stored in association with the characteristic. In addition to the information such as the reception date and time information, the source address, the transmission destination address, the port number, etc. It is also possible to set.

Most of the general users, when using the Internet, make a contract with an ISP (Internet Service Provider) to obtain the right to connect to the Internet. The current situation is to connect to the Internet via a provider.

The information adding system and the information adding method according to the present invention can be optimally applied to, for example, such an ISP server. For example, a user makes a call and transmits it to the Internet via the provider. Information such as advertisements can be added to all the data information to be transmitted or all the data information transmitted to the user via the provider at the server of the provider serving as the gateway to the Internet. Further, since the information such as the advertisement is transmitted to the transmission destination via the Internet or a telephone line, there is no need to install dedicated software on the user's computer, and regardless of the page that the user intends to browse. And information such as advertisements can be displayed on, for example, the screen of the user's computer.

Similarly, the information adding system and the information adding method according to the present invention can be optimally applied to an ASP (Application Service Provider) server.

Further, in the present invention, when user authentication is performed, an advertisement or the like adapted to the user's orientation can be transmitted by using the user information obtained in the user authentication step. In addition, since information such as advertisements is reliably transmitted to the transmission destination, it is possible to collect transmission histories and to accurately perform advertisement information to advertisers.

Similarly, the information addition system and the information addition method according to the present invention can be optimally applied to servers installed in companies, schools, and the like.
Information such as messages and images can be displayed on terminals such as teachers.

In the present invention, the message portion and the information to be added include HTML (Hypertext Markup Language), XML (Extended Markup Language), and SGM.
L (general markup language) or the like, image data such as image data or music data, binary data such as a program object, or plain text or the like. Good. As a result, the added information can be displayed on the homepage displayed on the screen of the user's computer, and the added information can be executed on the user's computer.

Further, the information to be added may include activation information for causing a terminal which has received the packet information to open another window on a screen. As a result, the newly added information on the screen is displayed as a separate window from the window in which the original information is displayed, so that the window in which the original information is displayed is not affected. .

[0023]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. To facilitate understanding of the description, the same reference numerals are given to the same constituent elements in each drawing as much as possible, and duplicate description will be omitted.

FIG. 1 is a diagram showing an example of a hardware configuration used in an embodiment of the present invention. A packet information control server 10 for acquiring information itself moving through a communication network includes a plurality of terminals 20a, 2a.
0b is communicably connected to each other via communication networks 30a and 30b. Communication network 30
a and the communication network 30 b are communicably connected via the packet information control server 10. As such communication networks 30a and 30b, for example,
Preferably, one of the communication networks is a telephone line, a dedicated line, a local area network (LAN) or the like, and the other is the Internet, or both are LANs. Packet information control server 10
Examples include servers such as ISPs and ASPs, particularly servers of providers (hereinafter referred to as free providers) that provide the right to connect to the Internet free of charge, and servers installed in companies, schools, and the like.

It is preferable that at least one of the terminals 20a and 20b has a contract or a rule permitting the packet information control server 10 to add information such as an advertisement to information transmitted and received by the terminal. For example,
The packet information control server 10 is a server of a free provider. As a price for providing a user with the right to be able to connect to the Internet free of charge, a case where the above-mentioned contract is made in advance, or a case where the packet information control server 10 It is a server installed in a school or the like, and includes a case where the above-mentioned rules such as company rules and school rules exist.

FIG. 2 is a diagram showing an example of the configuration of the packet information control server 10. Packet information control server 10
Comprises, for example, a receiving unit, a transmitting unit, a control unit, a storage unit, and the like. Each unit may be provided in a single server, or may be provided in any or all of a plurality of servers. When there are a plurality of servers, each server may be installed in the same building or may be installed in different buildings.

In FIG. 2, the receiving unit of the packet information control server 10 receives the packet information transmitted from the terminal 20a via the communication network 30a and transmits it to the control unit. Further, the transmission unit receives the packet information and the like transmitted from the control unit and transmits the packet information and the like to the terminal 20b via the communication network 30b.

In FIG. 2, a control unit is composed of a CPU and the like, and controls each unit, transfers data information, performs various calculations, temporarily stores data information, and the like. Specifically, for example, it is determined whether or not the received packet information should add information (a determination unit or a first determination unit).
It is determined whether or not the message part stored in the message part storage unit described later has a predetermined feature (second determining unit), and information to be added corresponding to the predetermined information is extracted from the additional information database unit described later. Is added to the message part, the message part after the addition is reconstructed into a packet, and transmitted to the transmission destination address via the transmission part (transmission part).

In FIG. 2, the storage unit stores a main program for causing the packet information control server 10 to execute the information adding method according to the present invention. Also, an additional information database unit that stores information to be added to the packet information is stored, and the storage unit has a message unit storage unit for storing a message unit of the packet information. The storage unit may be provided in the packet information control server 10, or may be connected to the packet information control server 10 as an external storage device.

Here, the packet information means a data unit which is a transfer unit divided into information of a standardized format having a certain length in data exchange of a communication network. And so on. The header part contains the source address, destination address,
It contains control information such as a port number and transmission order, and the message section contains a data body. The message part is, for example, HTML,
It may include format data such as XML and SGML, or may include image data such as image data and music data,
It may include binary data such as a program object or plain text.

FIGS. 3 and 4 are schematic diagrams for explaining packet information. The packet information shown in FIG.
The HTTP (Hyper Text Transfer Protocol) response is divided into packets,
The packet information shown in FIG. 4 is obtained by dividing an SMTP (Simple Mail Transfer Protocol) message into packets. In each illustrated example, each row is one packet information. As shown in FIGS. 3 and 4, each packet information includes a header part and a message part, and the header part stores “A” as a source address and “B” as a destination address. Have been. FIG. 3 also shows HT
An industry standard port number “80” is stored for TP, and FIG. 4 stores an industry standard port number “25” for SMTP. Also,
An HTML document that is a data body is stored in the message part of FIG. 3, and a data body is stored in the message part of FIG.

In the illustrated example, the HTTP response and S
Although an example in which an MTP message is divided into packets has been described, in the present invention, packet information is not limited to this. An HTTP request, another e-mail transmission protocol, an e-mail reception protocol, For example, a message based on POP3 (Post Office Protocol 3), IMAP4 (Internet Message Access Protocol 4), or the like may be divided into packets.

In FIG. 2, the additional information database unit is configured by associating at least one of the reception date and time information, the source address and the destination address of the packet information, the combination of the port number, and the information to be added. Have been. The additional information database unit may be configured to associate a predetermined characteristic of the message unit with information to be added, in addition to the combination. If there is an access user database unit that stores user information such as a user ID and a password, the additional information database unit and the access user database unit are linked to each other so that the user information in the access user database unit and the access information database unit May be associated with the information to be added.

The information to be added includes, for example, advertisement information and communication items. Further, the information to be added includes information as to where in the message part the information should be added. Examples of the characteristics of the message section include a tag, a predetermined keyword, and the like.

Next, an information adding method by the information adding system according to the present invention will be described with reference to the illustrated examples.

FIG. 5 is a flowchart showing an example of the operation of the main program. First, the packet information transmitted by the terminal 20a connected to the packet information control server 10 via the communication network 30a is received by the receiving unit (receiving step). Prior to receiving the packet information, user authentication may be performed using a user ID and an access user database unit storing at least a password in association with the user ID.
The receiving unit that has received the packet information transmits the packet information to the control unit.

In FIG. 5, the control section that has received the packet information determines whether or not the packet information should be added with information (a determination step or a first determination step). At this time, the control unit determines the reception date and time information at which the packet information was received, at least one of the source address and the destination address included in the header of the packet information, and the port number. The determination may be made, for example, by referring to information stored in a setting file previously stored in the storage unit.

The packet information which has not been determined as the packet information to which the information is to be added in this determination step is transmitted to the transmission unit by the control unit.

On the other hand, of the packet information determined to be packet information to which information is to be added, only the message part of the packet information is stored in the message part storage unit (storage step). On this occasion,
The contents of the header section and the like are stored in the storage section.

In FIG. 5, the control section determines whether or not the message section stored in the message section storage section has predetermined characteristics as necessary (second discriminating step). In this case, if a predetermined feature is detected by the control unit, information is added as packet information to which information is to be added. If the predetermined feature is not detected, information is not added and the packet is reassembled. Then, the information may be transmitted to the transmission unit, or the detected predetermined feature may be used to specify the insertion position of information to be added, which will be described later.
As a method of specifying the position of the insertion location of the information to be added, for example, a method of inserting information to be added immediately before the predetermined feature, a method of inserting information immediately after the predetermined feature, and the like can be given.

The characteristics of the message section include, for example, predetermined tags, keywords, and the like. Such a predetermined feature may be stored, for example, in a setting file stored in the storage unit in advance. Such a configuration file may be set in association with the configuration file when the configuration file is used in the first determination step.

In FIG. 5, the control unit extracts, from the additional information database unit, information to be added corresponding to a combination of at least one of the reception date and time information, the transmission source address, the transmission destination address, and the port number. When it is determined whether or not the message section has a feature, the information to be extracted from the additional information database section may be information corresponding to the feature in addition to the combination. When user authentication is performed, the information to be added to be extracted from the additional information database unit may correspond to the user information obtained in the user authentication process. This makes it possible to add information individually set for each user.

As described above, the additional information database unit receives the reception date and time information, the transmission source address, the transmission destination address,
Individual data such as port numbers and, if necessary, individual data such as characteristics of message parts and user IDs and information to be added are stored in association with each other. In the case where individual data such as a source address, a destination address, a port number, etc., individual data such as characteristics of a message section, and a user ID are stored, such a file and the additional information database section share the same data. A code, for example, an ID number or the like may be used so as to be associated with each other.

In FIG. 5, the control section adds the contents of the information extracted from the additional information database section to the message section stored in the message section storage section. The insertion place in the message part is
It is preferable to be determined in a setting file or the like. For example, the front part, the last part, etc. of the message part can be cited.
Further, as described above, when a predetermined feature is detected from the message part, the insertion position can be specified by the position of this feature. For example, there may be mentioned immediately before or immediately after the feature. For example, when the message portion is HTML, a tag “</ BODY>” or the like may be set as a feature of the message portion, and information to be added may be added immediately before or immediately after this tag.

Further, the information to be added may include activation information for causing the terminal receiving the packet information to open another window on the screen. By doing so, the information based on the original packet information transmitted from the source address and the information added according to the present invention can be displayed as different windows,
It does not affect the window displaying the original information.

FIG. 6 shows an example of a setting file which is set in advance and can be used in the determination step. The packet information or the message part is determined according to the contents of each column in FIG.

For example, in the first column of FIG. 6, the control unit determines that the source address of the packet information is "123.45.
67.89 "and all the packet information having the port number" 25 "are determined to be packet information to which information is to be added. In the figure, the mark “*” means that the item indicated by this mark is not restricted (the item is not used as a discriminating material). Subsequently, the control unit extracts information to be added from the additional information database unit according to the additional information ID “1001”, and the extracted information is inserted into the last part (“F: footer”) of the message unit. FIG. 7 shows an example of the additional information database unit.

In the second column of FIG. 6, the control unit:
As a first determination step, the reception date and time of the packet information is 20
From 00:00 on November 12, 2000, to December 12, 2000
All the packet information having a port number of “80” before 12:00 am on the 31st of the month is determined to be packet information to which information is to be added. Subsequently, as a second determination step, the control unit determines whether or not the message part stored in the message part storage unit has the feature “</ BODY>”. ID "200
According to "1", information to be added is extracted from the additional information database unit. The extracted information is inserted immediately before the feature “</ BODY>” of the message part (“B: before”).

It should be noted that the illustrated example is merely an example of a setting file, and the present invention is not limited to this.

In FIG. 5, the control unit subsequently divides the message part to which information to be added is added into packets according to the information in the header part of the packet information stored in the storage unit, and transmits the packet to the transmission unit. . The packet information received by the transmitting unit is transmitted to a destination address.

FIG. 8 is a schematic diagram showing an example of packet information to which the packet information shown in FIG. 3 is received and information is added according to the setting file in the second column of FIG. In FIG. 8, the information is added with a portion “<BR>... </BR>”.

FIGS. 9 and 10 show home pages displayed by the display unit of the terminal specified by the transmission destination address that has received the HTTP response. FIG. 9 shows a home page to which no information is added according to the present invention, which originally faithfully reflects data transmitted from the source address.

On the other hand, FIGS. 10A and 10B show a home page to which information is added according to the present invention. As shown in FIG. 10A, an advertisement or the like included in the information added according to the present invention may be displayed in the same window as the window shown in FIG. As shown in the above, an advertisement or the like included in the information added according to the present invention may be displayed as another window.

[0054]

According to the present invention, information such as an advertisement can be reliably transmitted to a user's computer without performing complicated operations.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an example of a hardware configuration used in an embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of a configuration of a packet information control server according to the embodiment.

FIG. 3 is a schematic diagram for explaining packet information.

FIG. 4 is a schematic diagram for explaining packet information.

FIG. 5 is a flowchart showing an example of the operation of the information adding method according to the present invention.

FIG. 6 is a diagram illustrating an example of a setting file.

FIG. 7 illustrates an example of a configuration of an additional information database unit.

FIG. 8 is a schematic diagram of an example of packet information to which information has been added according to the present invention.

FIG. 9 is a diagram illustrating an example of a configuration of a screen displayed by a display unit of a terminal that has received packet information when information is not added according to the present invention.

FIG. 10: When information is added according to the present invention,
It is a figure which shows an example of the structure of the screen displayed by the display part of the terminal which received packet information, (a) is a case where the content of additional information is displayed on the same window,
(B) is a case where the content of the additional information is displayed in another window.

[Explanation of symbols]

 10 packet information control server 20a, 20b terminal 30a, 30b communication network

Claims (10)

[Claims] A receiving unit for receiving packet information including a source address, a destination address, and a port number; at least reception date and time information, a source address of the packet information received by the receiving unit, and a destination address; A discriminating unit for discriminating whether or not the packet information is information to be added, based on a combination of one of the packet information and the port number; A message part storage unit for storing a message part in the combination; an additional information database unit storing the combination and information to be added to the packet information in association with each other; The information to be added corresponding to is extracted, the extracted information is added to the message part stored in the message part storage unit, and the information is added. Information addition system including a transmission section that reconstructs the Education into packets, and transmits to the destination address. 2. A receiving section for receiving packet information including a source address, a destination address, and a port number; at least reception time information, a source address of the packet information received by the receiving section, and a destination address. A first discriminator for discriminating whether or not the packet information is information to be added, based on a combination of one of the port numbers with the port number; and a case where the first discriminator discriminates the packet information to be added information. A message part storage unit for storing a message part in the received packet information; and an additional information database storing the combination, characteristics of the message part, and information to be added to the packet information in association with each other. A second determining unit that determines whether the message part stored in the message part storage unit has the feature; and determining that the message part has the feature in the second determining unit. If it is, from the additional information database unit, to extract the information to be added corresponding to the combination and the characteristics of the message portion, to the message portion stored in the message portion storage unit, the extracted information is added, A transmitting unit that reconfigures the message portion to which information is added into a packet and transmits the packet to the destination address. 3. The information addition system according to claim 1, wherein the message portion and the information to be added include at least one of format data, image data, plain text, and binary data. 4. The apparatus according to claim 1, wherein the information to be added includes activation information for causing a terminal receiving the packet information to open another window on a screen.
4. The information addition system according to any one of items 1 to 3. 5. A method for receiving packet information including a source address, a destination address, and a port number; at least one of a reception date and time information, a source address of the packet information received in the receiving step, and a destination address. And a discrimination step of discriminating whether or not the packet information is information to be added, based on a combination with the port number;
A storage step of storing a message part in the received packet information; an addition corresponding to the combination from an additional information database part storing the combination and information to be added to the packet information in association with each other The information to be taken is taken out, the taken out information is added to the message part stored in the message part storage unit, the message part with the added information is reconstructed into a packet, and transmitted to the destination address. An information adding method including a transmitting step. 6. A step of receiving packet information including a source address, a destination address and a port number; at least one of a reception date and time information, a source address of the packet information received in the receiving step, and a destination address. A first determining step of determining whether or not the packet information is information to which information is to be added, based on a combination with the port number;
In the determining step, when it is determined that the packet information is to be added with information, a storing step of storing a message part in the received packet information; and the combination, characteristics of the message part, and adding to the packet information A second discriminating step of discriminating whether or not the message section stored in the storing step has the characteristic, using an additional information database section storing information to be associated with the information to be stored; In the determining step, when it is determined that the message portion has the feature, the information to be added corresponding to the combination and the feature of the message portion is extracted from the additional information database portion and stored in the message portion storage portion. And sending the extracted information to the message part, reconstructing the message part with the added information into a packet, and sending the packet to the destination address. 7. The information adding method according to claim 5, wherein the message section includes at least one of format data, image data, plain text, and binary data. 8. The apparatus according to claim 5, wherein the information to be added includes activation information for causing a terminal receiving the packet information to open another window on a screen.
8. The information adding method according to any one of Items 1 to 7, above. 9. Receiving packet information including a source address, a destination address, and a port number; at least one of a reception date and time information, a source address of the packet information received in the receiving step, and a destination address. And determining whether the packet information is packet information to which information is to be added, based on a combination of the port number and the packet number;
A storage step of storing a message part in the received packet information; an addition corresponding to the combination from an additional information database part storing the combination and information to be added to the packet information in association with each other The information to be taken is taken out, the taken out information is added to the message part stored in the message part storage unit, the message part with the added information is reconstructed into a packet, and transmitted to the destination address. A computer-readable recording medium storing a program for causing a computer to execute the transmitting step. 10. A step of receiving packet information including a source address, a destination address, and a port number; at least one of a reception date and time information, a source address of the packet information received in the receiving step, and a destination address. And a discrimination step of discriminating whether or not the packet information is information to be added, based on a combination with the port number;
A storage step of storing a message part in the received packet information; an addition corresponding to the combination from an additional information database part storing the combination and information to be added to the packet information in association with each other The information to be taken is taken out, the taken out information is added to the message part stored in the message part storage unit, the message part with the added information is reconstructed into a packet, and transmitted to the destination address. A program for causing a computer to execute the transmitting process.