Just to make sure I understand this. 

Deterministic (statefull) NAT is deterministically translating inside IP to 
outside IP + port range (take NAT44 case).

Deterministic stateLESS NAT is deterministically translating inside IP + 
inside_src_port to outside IP + outside_src_port. 
No states are required since the incoming traffic in the downstream direction 
(outside IP +port) can be deterministically translated to inside IP+port. 
Any incoming traffic from outside will be mapped to something (predictable) on 
the inside even though there may be no traffic initiated from the inside.

CPE still needs statefull NAT.

Is this correct?
Thanks,
Kris


-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of 
Reinaldo Penno
Sent: Tuesday, November 01, 2011 4:12 PM
To: [email protected]; [email protected]
Subject: [BEHAVE] Stateless Deterministic NAPT/DS-Lite

Hello,

we submitted a new draft detailing our implementation of
Stateless-Deterministic NAPT44 and DS-Lite. (SD-NAT)

http://tools.ietf.org/html/draft-penno-softwire-sdnat-01

This is a based on our experience with port bucket/chunk allocation and
deterministic NAPT44. In the draft we provide a comparison with other
stateless/stateful methods floating around.

Thanks,

Reinaldo










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