Recognition of users by assigned source port blocks

A computer program product for recognition of users by assigned source port blocks comprising:

• a computer readable medium;
• first program instructions to search a mapping of source ports to Internet protocol addresses for one or more local area network Internet protocol addresses associated with a received wide area network Internet protocol address that were in use at a received date and time responsive to receiving data associated with a user session;
• second program instructions to search a list of assigned source ports for a match between a set of source ports associated with the found local area network Internet protocol addresses and a received source port responsive to finding one or more local area network Internet protocol addresses associated with the received wide area network Internet protocol address that was in use of the received date and time;
• and
• third program instructions to identify a source host device that is assigned the matching local area network Internet protocol address responsive to finding a match between the set of source ports associated with the found local area network Internet protocol addresses and the received source port.

A system for recognition of users by assigned source port blocks comprising:

• a computer having a processor and memory operably connected to said processor;
• first program instructions loaded into the memory and operable by the processor to search a mapping of source ports to Internet protocol addresses for one or more local area network Internet protocol addresses associated with a received wide area network Internet protocol address that were in use at a received date and time responsive to receiving data associated with a user session;
• second program instructions loaded into the memory and operable by the processor to search a list of assigned source ports for a match between a set of source ports associated with the found local area network Internet protocol addresses and a received source port responsive to finding one or more local area network Internet protocol addresses associated with the received wide area network Internet protocol address that was in use of the received date and time;
• and
• third program instructions loaded into the memory and operable by the processor to identify a source host device that is assigned the matching local area network Internet protocol address responsive to finding a match between the set of source ports associated with the found local area network Internet protocol addresses and the received source port.