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Configuring AFT
Overview
Address Family Translation (AFT) is a technology that translates an IP address of one address family
into an IP address of the other address family. It enables IPv4 network and IPv6 network to
communicate with each other.
As shown in Figure 155, AFT
performs address translation between the IPv4 network and the IPv6
network. The IPv4 host and the IPv6 host can communicate with each other without changing the
existing configuration.
Figure 155 AFT application scenario
Compatibility information
Command and hardware compatibility
Commands and descriptions for centralized devices apply to the following routers:
• MSR1002-4/1003-8S.
• MSR2003.
• MSR2004-24/2004-48.
• MSR3012/3024/3044/3064.
Commands and descriptions for distributed devices apply to MSR4060 and MSR4080 routers.
AFT implementations
Static AFT
Static AFT creates a fixed mapping between an IPv4 address and an IPv6 address.
Dynamic AFT
Dynamic AFT creates a dynamic mapping between an IPv4 address and an IPv6 address.
When dynamic AFT performs IPv6-to-IPv4 source address translation, two modes are available, Not
Port Address Translation (NO-PAT) and Port Address Translation (PAT).
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