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    • 4. 发明授权
    • Router and SIP server
    • 路由器和SIP服务器
    • US07830886B2
    • 2010-11-09
    • US11987929
    • 2007-12-06
    • Hiroaki NakazawaAtsushi Tachikawa
    • Hiroaki NakazawaAtsushi Tachikawa
    • H04L12/56H04L1/16
    • H04L12/64
    • A boundary node router determines whether a received packet includes a SIP message and a REGISTER message, and, if so, adds its router identifier to a REGISTER message which includes a user identifier and a user terminal identifier, sent from a user terminal, and sends the message to a SIP server. The SIP server has a user management table which stores the user terminal identifier, the router identifier of a router which serves the user terminal, and a predetermined Quality of Service type, in association with each user identifier. The SIP server extracts a user identifier, a user terminal identifier, and a router identifier from a received REGISTER message, and updates the user terminal identifier and the router identifier corresponding to the extracted user identifier, to the extracted user terminal identifier and the extracted router identifier.
    • 边界节点路由器确定接收到的分组是否包括SIP消息和REGISTER消息,如果是,则将其路由器标识符添加到包括从用户终端发送的用户标识符和用户终端标识符的REGISTER消息中,并发送 该消息发送到SIP服务器。 SIP服务器具有与每个用户标识符相关联的用户管理表,其存储用户终端标识符,为用户终端服务的路由器的路由器标识符和预定的服务质量类型。 SIP服务器从接收到的REGISTER消息中提取用户标识符,用户终端标识符和路由器标识符,并将所提取的用户标识符对应的用户终端标识符和路由器标识符更新为所提取的用户终端标识符和提取的路由器 标识符
    • 9. 发明授权
    • Address translator and method for management of address translation rules
    • 地址转换规则的地址转换器和方法
    • US07404008B2
    • 2008-07-22
    • US10644009
    • 2003-08-20
    • Keisuke TakeuchiTetsuhiko HirataHiroaki Nakazawa
    • Keisuke TakeuchiTetsuhiko HirataHiroaki Nakazawa
    • G06F15/16
    • H04L29/12066H04L29/12264H04L29/12358H04L29/12481H04L61/1511H04L61/2046H04L61/251H04L61/2557H04L69/16H04L69/161H04L69/167
    • There is provided an address translator having the functions to prevent, in the communications via the address translation, transmission of packets having no correct destination and transmission source addresses which will cause troubles in the networks and to urge an administrator take adequate measures for reception of the relevant packets. This address translator stores discriminator to discriminate temporary addresses. Moreover, when the original address is registered as the temporary address at the time of assignment of the temporary address of the receiving side host started when the name solution is performed, assignment is rejected to prevent transmission of packet from the transmitting side host by returning a response for name solution error to the transmitting side host. In addition, when transmission source address before translation and destination address after translation are registered as the temporary address, the received packet is discarded. Moreover, assignment of the temporary address is rejected and the packet is discarded, a message is transmitted to an alarm device or external host to notifying the event to an administrator.
    • 提供了一种地址转换器,其功能是通过地址转换的通信来防止传输不具有正确目的地的分组和传输源地址,这将导致网络中的麻烦并且敦促管理员采取适当的措施来接收 相关数据包 该地址转换器存储鉴别器以区分临时地址。 此外,当在分配名称解决方案时开始的接收侧主机的临时地址时将原始地址登记为临时地址时,拒绝分配,以防止通过返回发送方主机来发送分组 对发送端主机的名称解决方案的响应。 此外,当转换之前的传输源地址和翻译后的目的地址被注册为临时地址时,丢弃所接收的分组。 此外,临时地址的分配被拒绝并且分组被丢弃,消息被传送到报警设备或外部主机以向管理员通知事件。