Patent ID: 8281124
Filing Date: 2012-10-02
Classification: H04L

Abstract:
1. A network apparatus which is connected to a network, comprising: a controller including a CPU and a system memory; a managing unit responsive to the controller which manages an address range in which addresses to be allocated to a destination network apparatus are registered and encryption parameters for encrypting data to be transmitted to the destination network apparatus so that the address range and the encryption parameters are related to each other; an input unit which receives a user selection of a combination of encryption parameters; an address generating unit responsive to the controller which generates an address for the destination network apparatus by selecting an address in the address range, wherein the address in the address range is registered with a combination of the encryption parameters and the address range is determined as the address range corresponding to the user selection of the combination of the encryption parameters; and an encryption unit responsive to the controller which encrypts the data to be transmitted to the address generated by the address generating unit based on the encryption parameters, and encrypts the data to be transmitted to the generated address by IPsec, wherein the selected address in the address range is registered beforehand with a predetermined security level, and the security level is one of at least a high level, a middle level, and a low level, and the security level is registered in association with the encryption parameters such that the encryption parameters, which include a protocol, can be set based on receiving an input of the security level from the user without receiving an input of the protocol from the user.