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Implementation of NAT-PT/SIIT, ALGs and consideration to the mobility support in NAT-PT environment
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- Authors
- Joo-Chul Lee, Myung-Ki Shin, Hyong-Jun Kim
- Issue Date
- 2004-05
- Citation
- Vehicular Technology Conference (VTC) 2004 (Spring), pp.2714-2718
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- To deploy IPv6 we need some transition mechanisms that help existing IPv4 users move to IPv6 easily. NAT-PT (Network Address Translation - Protocol Translation, RFC-2766) is a transition mechanism which supports communication between the IPv6 node and IPv4 node by translating header of IP packet. NAT-FT uses IPv4/IPv6 header translation rules specified in SIIT (Stateless IF' ICMP Translation, RFC-2765). Since NAT-PT is a technology based on NAT (Network Address Translation) it has the same characteristics as what NAT has. So it needs ALG (Application Layer Gateway) for a specific application layer protocol embedding IF' address in its payload. Especially DNS-ALG is the most important thing than any other one. Because it discovers IPv6 address for IPv4 node from its IPv4 address. In this paper, we suggest effective DNS-ALG mechanism. MIPv6 (Mobile IPV6) is another hot issue in IF' networking area. If NAT-FT is used in MIPv6 environment NAT-PT needs some modifications to guarantee seamless MIpv6 operation. We also suggest the issues regarding mobility support in NAT-PT environment.
- KSP Keywords
- Header Translation, IP packet, IPv6 address, IPv6 header, Mobile IPv6, NAT-PT, Network Address Translation, Protocol translation, application layer gateway(ALG), application layer protocol, mobility support