Stateless NAT44
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 10, 2015
Grant Date -
Nov 14, 2013
app pub date -
May 14, 2013
filing date -
May 14, 2012
priority date (Note) -
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Abstract
An apparatus comprising a memory, and a processor coupled to the memory and configured to receive a mapping rule that associates a downstream internal Internet Protocol version four (IPv4) address prefix to an upstream external IPv4 address prefix, receive a first IPv4 packet from an upstream network node with a destination address field comprising an external IPv4 address comprising the external prefix, and perform a first network address translation IPv4 to IPv4 (NAT44) process by replacing the external IPv4 address in the first IPv4 packet's destination address field with an internal IPv4 address based on the mapping rule, wherein the internal IPv4 address comprises the internal prefix and a port set identifier (ID) associated with set of destination ports at a downstream node assigned to receive the first IPv4 packet.
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