Electrical computers and digital processing systems: multicomput – Computer-to-computer session/connection establishing – Network resources access controlling
Patent
1996-10-25
2000-08-08
Maung, Zarni
Electrical computers and digital processing systems: multicomput
Computer-to-computer session/connection establishing
Network resources access controlling
709225, 709226, 709227, 709228, 709236, 709238, 709239, H04L 1246, G06F 1100
Patent
active
061015431
ABSTRACT:
A new pseudo network adapter is disclosed providing an interface for capturing packets from a local communications protocol stack for transmission on the virtual private network. The system further includes a Dynamic Host Configuration Protocol (DHCP) server emulator, and an Address Resolution Protocol (ARP) server emulator. The new system indicates to the local communications protocol stack that nodes on a remote private network are reachable through a gateway that is in turn reachable through the pseudo network adapter. The new pseudo network adapter includes a transmit path for processing data packets from the local communications protocol stack for transmission through the pseudo network adapter. The transmit path includes an encryption engine for encrypting the data packets and an encapsulation engine for encapsulating the encrypted data packets into tunnel data frames. The pseudo network adapter passes the tunnel data frames back to the local communications protocol stack for transmission to a physical network adapter on a remote server node. The new pseudo network adapter further includes an interface into a transport layer of the-local communications protocol stack for capturing received data packets from the remote server node, and a receive path for processing received data packets captured from the transport layer of the local communications protocol stack. The receive path includes a decapsulation engine, and a decryption engine, and passes the decrypted, decapsulated data packets back to the local communications protocol stack for delivery to a user.
REFERENCES:
1992, Feb. 4, Lampson, B., Abadi, M., Burrows, M., Wobber, Edward, Authentication in Distributed Systems: Theory and Practice, Digital Systems Research Center, Palo Alto, CA.
1994, Bruce Schneier, Applied Cryptography, pp. 139-153, pp. 176-178, John Wiley Sons Inc.
1994, Cheswick, W.R., Bellovin, S.M., Firewalls and Internet Security, pp. 119-124, 211-234, Copyright AT&T Bell Labs., Inc., Murray Hill, NJ.
Bellovin, S.M., Pseudo-Network Drivers and Virtual Networks, AT&T Bell Labs. Murray Hill, NJ.
Alden Kenneth F.
Lichtenberg Mitchell P.
Wobber Edward P.
Dagg David A.
Digital Equipment Corporation
Maung Zarni
Najjar Saleh
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