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1. 发明授权

US09736005B2 Duplicate IP address detection by a DHCP relay agent 有权
公开(公告)号：US09736005B2
公开(公告)日：2017-08-15
申请号：US13334105
申请日：2011-12-22
申请人： David A. Christenson , James Venuto
发明人： David A. Christenson , James Venuto
IPC分类号： H04L29/08 , H04N21/61 , H04L29/14 , H04L29/12
CPC分类号： H04L29/08099 , H04L29/08072 , H04L61/103 , H04L61/2015 , H04L61/2046 , H04L69/40 , H04N21/61
摘要： Techniques are described for detecting duplicate IP addresses at a DHCP relay agent. Embodiments identify a list of DHCP clients that have valid IP address leases from one or more DHCP servers. Additionally, network traffic from a first node passing through the DHCP relay agent is monitored. Embodiments then determine whether the first node is using a duplicate IP address, based on the monitored network traffic and the identified list of DHCP clients.

2. 发明授权

US08671172B2 Network device configuration 失效
标题翻译：网络设备配置
公开(公告)号：US08671172B2
公开(公告)日：2014-03-11
申请号：US12499882
申请日：2009-07-09
申请人： David A. Christenson , Christopher T. Gloe , Brian E. Jongekryg , John C. Kasperski
发明人： David A. Christenson , Christopher T. Gloe , Brian E. Jongekryg , John C. Kasperski
IPC分类号： G06F15/177
CPC分类号： H04L12/00 , H04L12/4625 , H04L41/0806 , H04L41/0853 , H04L41/12
摘要： Systems, methods and articles of manufacture are disclosed for configuring a network device on a private network. A network device broadcasts a status message to the private network. The network device receives a request from a client and sends a response. The network device and the client establish a direct message route wherein one or more network configuration settings are exchanged between the client computer and the network device.
摘要翻译：公开了用于在专用网络上配置网络设备的系统，方法和制品。网络设备向私有网络广播状态消息。网络设备从客户端接收请求并发送响应。网络设备和客户端建立直接消息路由，其中在客户端计算机和网络设备之间交换一个或多个网络配置设置。

3. 发明申请

US20130166748A1 CLIENT-DRIVEN LOAD BALANCING OF DYNAMIC IP ADDRESS ALLOCATION 有权
标题翻译：动态IP地址分配的客户驱动负载平衡
公开(公告)号：US20130166748A1
公开(公告)日：2013-06-27
申请号：US13334112
申请日：2011-12-22
申请人： David A. Christenson , James Venuto
发明人： David A. Christenson , James Venuto
IPC分类号： G06F15/173
CPC分类号： H04L61/2015 , H04L29/06047 , H04L61/20 , H04L61/2061 , H04L67/1004 , H04L67/1008 , H04L67/1023 , H04L67/1036
摘要： Techniques are described for load balancing between DHCP servers at a DHCP client. Embodiments receive load information from each of two or more DHCP servers. Here, the load information describes a current workload of the respective DHCP server from which the load information is received. One of the two or more DHCP servers is then selected at the DHCP client based on the received load information. Additionally, embodiments accept an IP address offer from the selected DHCP server.
摘要翻译：描述了在DHCP客户端的DHCP服务器之间进行负载平衡的技术。实施例从两个或更多个DHCP服务器中的每一个接收负载信息。这里，负载信息描述了从其接收负载信息的相应DHCP服务器的当前工作负载。然后根据接收到的负载信息，在DHCP客户端选择两个或多个DHCP服务器中的一个。此外，实施例接受来自所选DHCP服务器的IP地址提供。

4. 发明申请

US20110010413A1 TCP/IP HOST NAME RESOLUTION ON A PRIVATE NETWORK 有权
标题翻译： TCP / IP主机名称解析在私有网络上
公开(公告)号：US20110010413A1
公开(公告)日：2011-01-13
申请号：US12499888
申请日：2009-07-09
申请人： David A. Christenson , Christopher T. Gloe , Brian E. Jongekryg , John C. Kasperski
发明人： David A. Christenson , Christopher T. Gloe , Brian E. Jongekryg , John C. Kasperski
IPC分类号： G06F15/16
CPC分类号： H04L29/12066 , H04L29/12132 , H04L29/12226 , H04L29/12301 , H04L61/1511 , H04L61/1552 , H04L61/2015 , H04L61/2076
摘要： Systems, methods and articles of manufacture are disclosed for resolving hostnames on a private network with a distributed DNS server configuration. One embodiment of the invention provides for a client resolver configured to communicate with a distributed network of servers. The client resolver receives a hostname query and determines if the hostname query is of the type single lablel hostname or fully qualified hostname. If the hostname query received is of the type fully qualified hostname, the client resolver routes the hostname query to a server with a longest matching domain suffix. If the hostname query received is of the type single label hostname the client resolver generates one or more new fully qualified hostnames and routes the hostname query to each server on the private network.
摘要翻译：公开了用于使用分布式DNS服务器配置在私有网络上解析主机名的系统，方法和制品。本发明的一个实施例提供了一种被配置为与分布式服务器网络通信的客户端解析器。客户机解析器接收主机名查询，并确定主机名查询是否为单个lablel主机名或完全限定主机名。如果接收到的主机名查询类型为全限定主机名，则客户端解析器将主机名查询路由到具有最长匹配域后缀的服务器。如果收到的主机名查询类型为单一标签主机名，则客户端解析器将生成一个或多个新的全限定主机名，并将主机名查询路由到专用网络上的每个服务器。

5. 发明申请

US20130166706A1 EXTENDING A DHCP RELAY TO BACKUP A DHCP SERVER 有权
标题翻译：扩展DHCP中继以备份DHCP服务器
公开(公告)号：US20130166706A1
公开(公告)日：2013-06-27
申请号：US13334099
申请日：2011-12-22
申请人： David A. Christenson , James Venuto
发明人： David A. Christenson , James Venuto
IPC分类号： G06F15/177
CPC分类号： H04L12/2429 , H04L41/0668 , H04L41/0856 , H04L61/2015
摘要： Techniques are described for providing a backup DHCP server using a DHCP relay agent. Embodiments retrieve DHCP server configuration information specifying a configuration of one or more DHCP servers. Additionally, embodiments monitor, at a DHCP relay agent, DHCP lease traffic between the one or more DHCP servers and one or more DHCP clients passing through the DHCP relay agent. Upon determining that the one or more DHCP servers have failed, DHCP server services are provided at the DHCP relay agent, based on the received DHCP server configuration information and the monitored DHCP lease traffic.
摘要翻译：描述了使用DHCP中继代理提供备份DHCP服务器的技术。实施例检索指定一个或多个DHCP服务器的配置的DHCP服务器配置信息。此外，实施例在DHCP中继处理一个或多个DHCP服务器与通过DHCP中继的一个或多个DHCP客户端之间的DHCP租用业务。在确定一个或多个DHCP服务器发生故障后，DHCP中继将根据收到的DHCP服务器配置信息和被监控的DHCP租用流量提供DHCP服务器服务。

6. 发明申请

US20090106404A1 Method and Apparatus for Dynamically Configuring Virtual Internet Protocol Addresses 有权
标题翻译：动态配置虚拟互联网协议地址的方法和装置
公开(公告)号：US20090106404A1
公开(公告)日：2009-04-23
申请号：US11874264
申请日：2007-10-18
申请人： David A. Christenson
发明人： David A. Christenson
IPC分类号： G06F15/177
CPC分类号： H04L61/2015 , H04L29/12952 , H04L43/0811 , H04L61/6077 , H04W40/00
摘要： A host node connected to a network using an Internet Protocol automatically identifies multiple adapters connected to the same network, preferably by broadcasting a Dynamic Host Configuration Protocol (DHCP) request for assignment of an IP address on a first adapter, and listening to the request on a second adapter, thereby determining that both adapters are on the same network. The host preferably causes an IP address to be generated for one of the adapters, and automatically configures the adapters to share the IP address thus generated as a virtual IP address, assigning one of the adapters as a primary adapter. Preferably, the host automatically detects deactivation of the primary adapter and switches the virtual address assignment to a different adapter.
摘要翻译：使用因特网协议连接到网络的主机节点自动识别连接到同一网络的多个适配器，优选地通过广播用于在第一适配器上分配IP地址的动态主机配置协议（DHCP）请求，并且收听请求第二适配器，从而确定两个适配器在同一网络上。主机优选地为一个适配器生成IP地址，并自动配置适配器以共享作为虚拟IP地址生成的IP地址，将适配器中的一个分配为主适配器。优选地，主机自动检测主适配器的去激活，并将虚拟地址分配切换到不同的适配器。

7. 发明申请

US20080162859A1 SYSTEMS AND METHODS FOR RECLAIMING RESIDENT BUFFERS ON DEMAND 有权
标题翻译：用于重建需求缓冲区的系统和方法
公开(公告)号：US20080162859A1
公开(公告)日：2008-07-03
申请号：US11619441
申请日：2007-01-03
申请人： David A. Christenson , Richard F. Jirsa , John C. Kasperski
发明人： David A. Christenson , Richard F. Jirsa , John C. Kasperski
IPC分类号： G06F12/06
CPC分类号： G06F12/023 , G06F9/5016 , G06F9/5022 , G06F12/123 , G06F2209/5011
摘要： systems methods and computer products for reclaiming resident buffers on demand. Exemplary embodiments include systems and methods for reclaiming resident buffers, including allocating a buffer, determining that the buffer alllocation pushes the buffer pool below a reclaim threshold, marking an oldest in-use buffer to be reclaimed, determining that all messages referencing the buffer have been queued, allocating a new buffer and performing a swap of the oldest in-use buffer and the new buffer, performing a free message block operation and updating a message block by updating a set of read and write pointers to point to the new buffer.
摘要翻译：系统方法和计算机产品，用于根据需要回收驻留缓冲区。示例性实施例包括用于回收驻留缓冲器的系统和方法，包括分配缓冲器，确定缓冲区分配将缓冲池推送到回收阈值以下，标记要回收的最旧的使用中缓冲区，确定引用缓冲器的所有消息已经被排队，分配新的缓冲区并执行最旧的使用缓冲区和新缓冲区的交换，通过更新一组读写指针指向新的缓冲区，执行空闲消息块操作和更新消息块。

8. 发明授权

US09253144B2 Client-driven load balancing of dynamic IP address allocation 有权
公开(公告)号：US09253144B2
公开(公告)日：2016-02-02
申请号：US13334112
申请日：2011-12-22
申请人： David A. Christenson , James Venuto
发明人： David A. Christenson , James Venuto
IPC分类号： H04L29/06 , H04L29/12 , H04L29/08
CPC分类号： H04L61/2015 , H04L29/06047 , H04L61/20 , H04L61/2061 , H04L67/1004 , H04L67/1008 , H04L67/1023 , H04L67/1036
摘要： Techniques are described for load balancing between DHCP servers at a DHCP client. Embodiments receive load information from each of two or more DHCP servers. Here, the load information describes a current workload of the respective DHCP server from which the load information is received. One of the two or more DHCP servers is then selected at the DHCP client based on the received load information. Additionally, embodiments accept an IP address offer from the selected DHCP server.

9. 发明授权

US08578055B2 Propogation of DNS server IP addresses in a private network 失效
标题翻译：在专用网络中传播DNS服务器IP地址
公开(公告)号：US08578055B2
公开(公告)日：2013-11-05
申请号：US12499898
申请日：2009-07-09
申请人： David A. Christenson , Christopher T. Gloe
发明人： David A. Christenson , Christopher T. Gloe
IPC分类号： G06F13/00
CPC分类号： H04L61/1511 , H04L29/12066 , H04L29/12226 , H04L29/12301 , H04L61/2015 , H04L61/2076
摘要： Systems, methods and articles of manufacture are disclosed for updating IP addresses on a private network. A DNS server receives an updated IP address and stores both the updated IP address and an old IP address. The DNS server includes the updated IP address in responses to all DNS query requests, wherein the DNS query requests are to the old IP address. Further, the DNS server deletes the old IP address and updates the DNS server network settings with the updated IP address after every remote client on the private network has stored the updated IP address.
摘要翻译：公开了用于更新专用网络上的IP地址的系统，方法和制造品。 DNS服务器接收更新的IP地址并存储更新的IP地址和旧的IP地址。 DNS服务器在响应所有DNS查询请求时包括更新的IP地址，其中DNS查询请求是旧的IP地址。此外，在专用网络上的每个远程客户端都存储了更新的IP地址后，DNS服务器将删除旧的IP地址，并更新具有更新的IP地址的DNS服务器网络设置。

10. 发明授权

US08560659B2 Managing an alias host and domain names on a DNS server 失效
公开(公告)号：US08560659B2
公开(公告)日：2013-10-15
申请号：US12846160
申请日：2010-07-29
申请人： David A. Christenson , Christopher T. Gloe
发明人： David A. Christenson , Christopher T. Gloe
IPC分类号： G06F15/173
CPC分类号： G06F17/30117 , H04L61/1511
摘要： Embodiments of the invention provide a method of managing aliases on a server, including deleting unused aliases, while minimizing required administrator interaction. The server may include expirable alias records, containing an expiration value and an inactivity timer. An alias manager component may process the expirable records. If the alias manager component determines a particular record has expired, the alias manager component may delete that record.

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