This part is still not OK:

> 5.2.1. Changes to RFC2473 and RFC6333 Fragmentation Behaviour
> 
>    On receiving an encapsulated packet containing an IPv4 fragment, the
>    lwB4 SHOULD wait until all other fragments have been received and de-
>    capsulated.  The original packet is then re-assembled before
>    performing NAPT.  This is necessary because layer-4 protocol
>    information is only present in the first fragment.

I'll repeat what I wrote on 2014-01-16:

It's possible to do it correctly without waiting for all fragments
(e.g., what Cisco calls "virtual reassembly"). My suggestion would be to
steal the very carefully written text from RFC 6146, page 19.

Simon
-- 
DTN made easy, lean, and smart --> http://postellation.viagenie.ca
NAT64/DNS64 open-source        --> http://ecdysis.viagenie.ca
STUN/TURN server               --> http://numb.viagenie.ca
_______________________________________________
Softwires mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/softwires

Reply via email to