Method, system and storage medium for establishing...

Details Method, system and storage medium for establishing... Method, system and storage medium for establishing...

2011-05-17

2011-05-17

Moore, Ian N (Department: 2469)

Electrical computers and digital processing systems: multicomput

Computer network managing

Computer network access regulating

C709S237000, C370S401000, C707S821000, C713S150000, C713S151000

Reexamination Certificate

active

07945666

ABSTRACT:
A method, system and storage medium wherein reachability information is exchanged over IPsec tunnels by means of a dynamic routing protocol, but instead of incorporating it into the normal routing table, it is incorporated into the IPsec data structures SPD and SAD by performing a set of steps.1Thereby, disadvantages of prior art efforts to establish compatibility between IPsec and dynamic routing, for instance IIPtran (RFC 3884), are overcome in that compatibility is established without modifying the processing of datagrams by IPsec.2This may be implemented by extending the routing daemon so that it supports inserting or removing entries in the SPD and SAD using the PF KEY API.3Further embodiments feature cryptographically signing and filtering advertised reachability information, redistribution of reachability information between the dynamic routing in the base network and the overlay network, a new routing protocol tailored specifically to IPsec and load sharing over multiple IPsec tunnels.41[0043-0054]2[0009-0023]3[0064-0068]4[0055-0059], [0061-0063], [0069-0079] and [0080-0081]

REFERENCES:
patent: 2002/0078227 (2002-06-01), Kronenberg
patent: 2002/0083046 (2002-06-01), Yamauchi et al.
patent: 2002/0188871 (2002-12-01), Noehring et al.
patent: 2003/0005283 (2003-01-01), Mualem et al.
patent: 2003/0159067 (2003-08-01), Stirbu
patent: 2004/0001497 (2004-01-01), Sharma

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