Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2005-01-24
2008-11-18
Duong, Frank (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
Reexamination Certificate
active
07453887
ABSTRACT:
A source IPV6 mobile node is configured for forwarding an IPV6 packet via an IPV4 connection with a destination IPV6 router. The IPV4 packet includes IPV4 source and destination addresses, a UDP source port and UDP destination port, and a synthetic tag address in the IPV6 destination address field. The synthetic tag address, a valid (routable) IPV6 care of address, has an address prefix routed to the IPV6 router. The address prefix specifies a forwarding protocol, the IPV4 destination address for the IPV6 router, and a site-level aggregation identifier. An address suffix for the synthetic tag address specifies the IPV4 source address, the UDP source port and UDP destination port. Hence, the synthetic tag address enables the destination IPV6 router to send an IPV6 reply packet back to the source IPV6 mobile node via the IPV4 network.
REFERENCES:
patent: 6172986 (2001-01-01), Watanuki et al.
patent: 6865184 (2005-03-01), Thubert et al.
patent: 7031328 (2006-04-01), Thubert et al.
patent: 7149225 (2006-12-01), Thubert et al.
Thubert et al, IPv4 traversal for MIPv6 based Mobile Routers, Internet Draft, pp. 1-18, Feb. 2003.
Johnson et al., “Mobility Support in IPv6”, Internet Draft, IETF Mobile IP Working Group, draft-ietf-mobileip-ipv6-20.txt, Jan. 20, 2003.
Deering et al., “Internet Protocol, Version 6 (IPv6)”, Request for Comments: 2460, IETF Network Working Group, Specification, Dec. 1998.
Huitema, “Teredo: Tunneling IPv6 over UDP through NAT's”, IETF Internet Draft, draft-ietf-ngtrans-shipworm-08.txt, Sep. 17, 2002.
Carpenter et al., “Connection of IPv6 Domains via IPv4 Clouds”, IETF Network Working Group, Request for Comments: 3056, Feb. 2001.
Thubert et al., “IPv6 Reverse Routing Header and its application to Mobile Networks”, IETF Network Working Group, Internet-Draft, draft-thubert-nemo-reverse-routing-header-01, Oct. 11, 2002.
Thubert et al., “IPv6 Reverse Routing Header and its application to Mobile Networks”, IETF Network Working Group, Internet-Draft, draft-thubert-nemo-reverse-routing-header-00, Jun. 19, 2002.
Perkins et al., “Mobility Support in IPv6”, ACM, pp. 27-37, 1996.
Karagiannis, “Mobile IP-State of the Art Report”, Ericsson, pp. 1-63, 1999.
Molteni Marco
Thubert Pascal
Troan Ole
Wetterwald Patrick
Cisco Technology Inc.
Duong Frank
Turkevich Leon R.
LandOfFree
Arrangement for traversing an IPv4 network by IPv6 mobile nodes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arrangement for traversing an IPv4 network by IPv6 mobile nodes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arrangement for traversing an IPv4 network by IPv6 mobile nodes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4025481