System and method for IP network address translation and IP filtering with dynamic address resolution
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United States of America Patent
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Jul 24, 2001
Grant Date -
N/A
app pub date -
Aug 17, 1998
filing date -
Aug 17, 1998
priority date (Note) -
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Abstract
IP network address translation (NAT) and IP filtering with dynamic address resolution in an Internet gateway system. Symbolic interface names are recognized in selected rule statements. An symbolic s-rule file is generated from these rule statements which includes symbolic interface names. During processing of a packet message, the s-rule file corresponding to the interface name in the packet message is processed, with symbolic addresses in the s-rule file resolved to the IP addresses obtained from the packet message.
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