Introduction - the first paragraph needs some revision.
"Experiences from initial IPv6 deployments indicate that transitioning
a network providers' domain fully to IPv6 requires not only the
continued support of legacy IPv4 users connected to the boundary of
that domain, allowing IPv4 address sharing, but also the need for
carrying out IPv6-only operational practices in that domain [, also
<<<<<< Fragmented & doesn¹t make sense.
for traffic from IPv4 users. "
The below sentence needs revision, I don¹t really understand what the
sentence is trying to convey.
Is it saying IP encapsulation overhead is unacceptable or causes issues or
what?
"The translation mode is
required for environments where the IP encapsulation overhead or IPv6
traffic interaction & processing (eg use of IPv6 only servers)
requirements, or both, make the use of the encapsulation solution not
attractive."
Section 4 - Architecture
would be required if the said IPv6 devices are expected to themselves to
initiate
s/expected to themselves to initiate/expected to initiate
A standard stateless NAT64 function [RFC6145] is extended to allow
stateless mapping of IPv4 and transport layer port ranges to IPv6
address space
s/mapping of ipv4 and /mapping of IPv4 address and
Section 6.2
"layer destination port number is in the range configured by MAP for
the CE and the CE SHOULD drop any non conforming packet"
Why is this drop a SHOULD instead of a MUST? It doesn¹t seem to make any
sense to process a packet that is not
destined to its port range, does it?
"The resulting IPv4 packet is then forwarded to the CE's
NAPT function, when this is enabled,"
In section 6.1, the NAPT function is referred to as NAT44 function, in
section 6.2 it is referred to as NAPT function.
Can you make the terminology consistent - use either one or the other.
Section 6.2 " When the NAPT function is not enabled". A similar sentence
is needed in section 6.1,
on how to handle the ipv4 packets when NAPT is not enabled
Section 7
"ICMP preserving the ID field on its way to an IPv4 destination."
s/on its way to/on its way back to
"In all other cases, the MAP-T BR MUST derive the destination IPv6 address
by
simply mapping the destination IPv4 address without additional port
info."
What are the other cases ? How can you derive the destination IPv6 address
without the port information?
I assume you are talking about the ICMP errors as it is addressed
separately later in the section.
I would suggest clarifying what the other cases are here.
Thanks
Senthil
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