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Conference Paper
Mobile IPv6 security while traversing a NAT
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- Authors
- Geon-Woo Kim, Jong-Wook Han, Dong-Il Seo
- Issue Date
- 2003-10
- Citation
- International Conference on Networks (ICON) 2003, pp.331-335
- Language
- English
- Type
- Conference Paper
- Abstract
- The mobile Wv6 protocol allows a mobile node to move from one link to another without changing the mobile node’s home address by using a care-of address. When a mobile node moves to a foreign link bebind a NAT, it uses a local-scope care-of address, which bas been allocated by a foreign router dominating the visited nehvork, as identification of itself. On the other hand, other nodes outside the NAT are going to identify the mobile node by a public care-of address translated into from the local-scope care-of address by the NAT. As each security mechanism running over mobile IPv6 relies on the IP address information, it brings about many critical problems. Therefore, io this paper, we propose some modifications to the legacy mobility messages by just adding single flag to address incompatibilities caused by NAT-deployment. With the new proposed mechanism, we can provide secure and seamless IPv6 mobility services regardless of the mobile node’s current point of attacbment to the Internet, even though it is located behind a NAT.