Home agent acting as a proxy for a Mobile Node

US8553689B2 · kind B2 · utility

Assignee

• PANASONIC HOLDINGS CORPORATION · JP

Inventors

• Jens Bachmann · Langen, DE
• Kilian Weniger · Langen, DE

Key dates

• Filing date: Apr 3, 2012
• Grant date: Oct 8, 2013
• Expiry date: Apr 3, 2032

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W80/04
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

In node management in a packet-switched network, a first node acts as a proxy for a second node. Both nodes have network-layer addresses at the network layer and link-layer addresses at the link layer. The first node receives a request to receive and forward packets addressed to the second node's network-layer address. The same network-layer address is associated with the first and the second node, and the first and the second node have distinct link-layer addresses. The first node advertises to nodes attached to the packet-switched network the first node's link-layer address as a destination address for the second node's network-layer address; the second node does not advertise. The first node receives in response to advertising, packets destined to the second node's network-layer address having the first node's link-layer address and forwards packets addressed to the second node's network-layer address to the second node using its link-layer address.