Stateful vs Stateless Address Translation

Stateful Translation

Pros: uses standard addresses

Cons: not scalable, not fault resilient, not transparent, and has garbage collection problem

Good for:

• connect v4 hosts to v6 Internet

Stateless Translation

Pros: scalable, fault resilient, transparent, and no garbage collection problem

Cons: funny address?router stress

Good for:

• connect v6 hosts to v4 Internet

Address

Rewriter

Translator

Normal

v4 Adrs

Special

v6 Adrs

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