Re: 3gpp-analysis: IMS/SIP transition [RE: NAT-PT Applicabilty for 3GPP]

[Jasminko Mulahusic <jasko@fakat.com>]

suresh,

i really do not understand what your concern is?

> I'd like to get a sense on where the WG Chairs stand regarding:
>
> <---- from my prev. mail ------>
>
> Briefly, the problem is SIP-ALG i.e., parsing SIP payload for addresses
> /ports and replacing them w/ v4/v6 equivalents is not recommended. Folks
> are calling it "SIP editing".

<....>

> SIP(ping) folks should just worry about the problem that I stated above,
> and nothing more.
>
> The above tells me that this WG is deliberately letting another WG define
> "yet another" translator without understanding what the problem is, and
> use this as means to eventually deprecate RFC2766.

have you read draft-elmalki-v6ops-3gpp-translator-00.txt?

which part you do not understand/like?

the draft is explicit about what i believe is your concern:

-------------
As specified in [4] SIP messages may be end-to-end integrity
protected, therefore it may not possible to modify them en-route. In
general the SIP WG discourages the use of intermediaries which alter
the contents of SIP messages. This is a very important consideration
for a 3GPP Translator solution.
-------------


jasminko