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Client management method on network system

IP.com Disclosure Number: IPCOM000016777D
Original Publication Date: 2003-Jul-15
Included in the Prior Art Database: 2003-Jul-15
Document File: 2 page(s) / 12K

Publishing Venue

IBM

Abstract

Disclosed is a system for the client computer management in the network environment. To submit a job, such as software installation, to the client computer through network, the network address for each computer should be known in advance and kept in database. This article shows the way to keep the network address and how to maintain it.

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Client management method on network system

  Disclosed is a system for the client computer management in the network environment. To submit a job, such as software installation, to the client computer through network, the network address for each computer should be known in advance and kept in database. This article shows the way to keep the network address and how to maintain it.

Assuming the network environment which IP connection is used, the following kind of network address are available.

IP address

MAC (Media Access Control) address


1.


2.


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IP address is a 32-bit value and its uniqueness is assured in the network environment. If

IP address for each client computer is kept in the database, it should be considered that it could be changed dynamically. Under DHCP (Dynamic Host Configuration Protocol) environment, which is the most popular way to assign IP address recently, the assigned value can be changed frequently.

MAC address is a 48-bit value, assigned to each network card when it is shipped from manufacturing. The uniqueness of each value is also assured. In case that this value is kept in the database in order to manage the client computer, there should be a logic to convert this value to IP address, because it is impossible to determine the client computer by MAC address alone. To convert MAC address to IP address, RARP (Reverse Address Resolution Protocol) can be used. Using this protocol, MAC address can be converted to IP address, but unfortunately, there is the restriction that this conversion is valid only under the same physical network segment. There is an IP router located on the boundary of each physical network segment, but IP router can not transmit the RARP request frame to the another physical network segment. By this reason, MAC address can not be used as the network address to be kept in the database.

Host name is a string value, assigned to each computer. Because it is assigned by the user, it could be the same value with the another computer's one. But it can be assured that there is no conflict in the same network environment, because the operating system can detect the conflict of the host name, and show the error message and refuse the connection until the conflict is resolved. There is no problem for the conversion from the host name to IP address. The host name can be changed like IP address, but the frequency of the change is much less than IP address, because it is changed only by the user.

By these discussions, IP address or the host name can be used to manage the client computer in the network environment. Because both network addresses can be changed, it is mandatory to establish the mechanism to detect the change then update the database. In case that IP address is kept in the database, there should be a monitor...