Invention Grant
US07685284B2 Network, network terminal device, IP address management method using the same, and program therefor
有权
网络，网络终端设备，使用其的IP地址管理方法及其程序
- Patent Title: Network, network terminal device, IP address management method using the same, and program therefor
- Patent Title (中): 网络，网络终端设备，使用其的IP地址管理方法及其程序
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Application No.: US11345340Application Date: 2006-02-02
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Publication No.: US07685284B2Publication Date: 2010-03-23
- Inventor: Tetsuya Yamashita
- Applicant: Tetsuya Yamashita
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Agency: Whitham Curtis Christofferson & Cook, PC
- Priority: JP2005-025787 20050202
- Main IPC: G06F15/173
- IPC: G06F15/173 ; G06F15/177
Abstract:
When a communication malfunction occurs in the transmission line between routers, and operation is carried out by a backup system control device, IP telephone terminals can connect to the backup system control device through the use of an IP address that is previously acquired from the address management device and saved. When the transmission line has been restored, the IP telephone terminals reconnect to the address management device so that operation can be carried out using an IP address under the control of the address management device. In a system that is operated by DHCP, it is thereby possible to construct a network that can be operated without installing a DHCP server at each remote station.
Public/Granted literature
- US20060173988A1 Network, network terminal device, IP address management method using the same, and program therefor Public/Granted day:2006-08-03
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