RE: 3gpp-analysis-04: necessity for protocol translators in sect 2.3

[Soliman Hesham <H.Soliman@flarion.com>]

 > If the approach "use of NAT-PT in IPv6 UE -> IPv4 node" is 
 > accepted (and 
 > maybe even if not), I'd also modify section 2.3 slightly:
 > 
 >  1) the "Translators are typically needed" sounds too strong, 

=> The rest of the sentence is needed though "when two communicating
nodes have different IP stacks". Note that this does not
imply that they don't implement both stacks, it just
means that in the context of a certain communication
scenario, they appear to be single-stacked. See my
other response to your first issue (re PDP context).

 > modify the last paragraph to (for example):
 >                                                              
 >                                           
 >     Translators may be needed in some cases when the 
 > communicating nodes
 >     do not share the same IP version. 

=> I don't have a strong opinion on this but
a reader might ask "what do you do in the other cases?"
Because you use "some" above after assuming two
nodes with different IP stacks.

Actually, I think maybe we should not associate
translation with ALGs, after all, they don't actually
translate.

Hesham