Patent 06643778 - Network system using a firewall dynamic control method > Summary
US Patent
Patent Application No. US 06643778
Published on Nov 4, 2003
Application No. 09/280453
Field on Mar 30, 1999
Classification
International:
H04L 9/00
National:
713/201
709/223;
Field of Search
713/200
713/201;
709/203;
709/223;
709/230;
709/225-228;