Web and Network Communications Mobile IP – Mobile Node

Mobile IP allows a mobile device to roam to different IP networks while still being identified by its original IP address.

Designed to be used with the GHNet TCP/IP stack, it provides the same high quality and performance that embedded systems designers have come to expect from Green Hills Software.

• Works with or without a foreign agent present.
• Mobile IP will detect when the mobile node has changed subnets and automatically register with the home agent, without any user intervention.
• A notification function is provided so that the state of the mobile can be accurately tracked.
• All operation parameters can be configured at runtime.
• 100% RFC compliant.
• Link layer independent.
• User control of Mobile IP operation includes the ability to start move detection, notify of a possible network change and re-register with the current agent.

• Number of retransmissions and timeout values for all components of Mobile IP, such as registration and solicitations.
• A device can be configured to either co-locate or use a foreign agent.
• Call back functions to provide authentication information when authenticating to various foreign agents.
• Information about the home agent can be provided, including address and authentication information.
• The device can optionally be set to also receive broadcast messages from the home network.
• The registration lifetime can be biased downward which assists in move detection as well as avoiding registration timeouts.
• User preference dictates the use of a foreign agent or a co-located address.

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