The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 16, 2012
Filed:
Oct. 27, 2010
Yan Zhuang, Beijing, CN;
Yan Zhuang, Beijing, CN;
Juniper Networks, Inc., Sunnyvale, CA (US);
Abstract
In general, techniques are described for performing distributed network address translation (NAT) with a network device. The network device includes an interface card and a control unit. The interface card receives a packet including a source address. The control unit includes NAT modules. each of which stores a local pool of unallocated NAT resources that have not yet been allocated for use in performing network address translation. The NAT resources each include a network address and a network port number. One of the NAT modules receives the packet, determines whether any of the NAT resources from the local pool of NAT resources are available, in response to the determination that none of the NAT resources from the local pool of NAT resources are available, requests additional NAT resources, and performs NAT to obscure the source address of the packet using one of the additional NAT resources to generate a modified packet. The interface card forwards the modified packet.