Handling connections moving between firewalls

Details Handling connections moving between firewalls Handling connections moving between firewalls

2002-11-21

2011-12-27

Edouard, Patrick (Department: 2617)

Multiplex communications

Communication over free space

Combining or distributing information via time channels

C370S310000, C370S345000

Reexamination Certificate

active

08085752

ABSTRACT:
A method of handling mobile entities in a firewall, wherein a first mobile entity table comprising identifiers of mobile entities, which are active in a firewall, and a second mobile entity table comprising identifiers of mobile entities, which are active in a predefined set of other firewalls and identifiers of corresponding other firewalls, are maintained in the firewall. A new mobile entity, which is not currently active in the firewall, is detected, after which it is found on the basis of the second mobile entity table, if the new mobile entity is currently active in another firewall. If the mobile entity is currently active in another firewall, state information related to the new mobile entity is queried from the another firewall, and stored in the firewall to be used for processing data packets from/to the new mobile entity.

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