Method for synchronizing network address translator (NAT) tables using the server cache synchronization protocol
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United States of America Patent
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Dec 18, 2001
Issued Date -
N/A
app pub date -
Aug 21, 1998
filing date -
Aug 21, 1998
priority date (Note) -
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Abstract
A method for distributing Network Address Translator (NAT) translation table information among border routers associated with a routing domain using the Server Cache Synchronization Protocol (SCSP). The NAT translation table information is included in one or more Cache State Advertisement Summary (CSAS) records in a SCSP Cache State Advertisement (CSA) message. Network address information, i.e., local network address and corresponding global network address, are transmitted in the CSA messages and exchanged between a group of interconnected SCSP capable border routers so that the border routers can maintain identical NAT translation tables as necessary to forward data packets according to the NAT forwarding paradigm.
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