How IPv6 will handle IPv4
IPv4 address translation
- IPv4 addresses are easily translated into IPv6 address by adding an IPv6 address prefix of leading zeroes
Dual protocol stacks
- For the foreseeable future, all implementations of IPv6 will also include an IPv4 stack
IPv6 tunneled over IPv4
- IPv6 hosts will be able to communicate with each other through IPv4 routers by encapsulating IPv6 packets within IPv4 packets
Backward compatibility
- API support for both IPv4 and IPv6 addresses permits IPv6 applications to transparently support legacy IPv4 services
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