Electrical computers and digital processing systems: multicomput – Network computer configuring
Reexamination Certificate
2006-12-05
2006-12-05
Pwu, Jeffrey (Department: 2143)
Electrical computers and digital processing systems: multicomput
Network computer configuring
C709S227000, C709S230000, C370S249000, C370S389000, C370S352000
Reexamination Certificate
active
07146410
ABSTRACT:
Systems and methods for ensuring that control protocols can be used between Media Gateways130, 140and Media Gateway Controllers110that reside on separate IP networks120, 150. Network Address Translation (NAT) is strategically implemented to inspect and translate control protocol messages exchanged between nodes on separate IP networks. One method is to add NAT intelligence to a firewall/router160giving it the ability to inspect and translate the IP addresses within control protocol messages. Another method is to have a firewall/router160forward control protocol messages to a separate NAT server170to inspect and translate the IP addresses within control protocol messages. The former implementation places a significant amount of real-time work on the firewall/router which can affect its performance in its core duties. The latter implementation does not affect performance but requires deploying additional hardware.
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Nortel Networks Limited
Pwu Jeffrey
Withrow & Terranova , PLLC
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