Patent ID: 7788405
Filing Date: 2010-08-31
Classification: H04L,H04W

Abstract:
1. A method for providing automatic configuration of prefixes at all MAPs in a communication system comprising Mobility Anchor Point (MAP) Domains and within each MAP Domain, a Leader MAP, a DHCPV6 Server and possibly other MAP(s), the method comprises: requesting, by the leader MAP for the MAP Domain, MAP Domain info option from the DHCPV6 Server; configuring, by the DHCPV6 Server, an anycast address of Leader MAP for that MAP Domain; configuring, by the DHCPV6 Server, a list of valid on-link prefixes of border ARs for the MAP Domain; configuring, by the DHCPV6 Server, anycast addresses of Leader MAPs in neighboring MAP Domains; processing a request for the MAP Domain Info option and sending a reply with the MAP Domain Info option to the Leader MAP by the DHCPV6 Server; assigning the anycast address, by the Leader MAP to itself, the anycast address being obtained through the DHCPV6 Server; sending, by the Leader MAP, the list of valid on-link prefixes to Leader MAPs in all neighboring MAP domains; and multicasting, by the Leader MAP, the prefix list, obtained through the DHCPV6 Server or from other Leader MAPs, to all other MAPs within the domain; wherein DHCPv6 options are defined to carry all the configuration information from the DHCPv6 Server where the DHCPv6 options are MAP Domain Info Option, MAP Domain Anycast Option, MAP Domain Prefixes Option, Neighbor Domain Anycast Option, Prefix Option along with Security Considerations.