Dear Mr. Okubo,
With regards to the ETSI Tispan work there are a couple of items
relevant to the NAT/Firewall traversal. They are:
ETSI TS 102 233 "Gate Control Protocol"
ETSI ES 283 018 "RACS: H.248 Profile for the Ia Interface"
The Ia Interface Profile makes reference to H.248.37.
Regards, Christian
OKUBO Sakae wrote:
> Dear Q.5/16 experts,
>
> At the last Rapporteur meeting in Geneva (28 November - 2 December
> 2005), I undertook to survey the subject studies in other SGs. Here is
> some information as I have collected from the NGN-GSI event last month
> and Study Group documents at the ITU-T site
> <http://www.itu.int/ITU-T/meetingdocs/index.asp>:
>
> 1/ SG13
>
> NGN RACF (Resource and Admission Control Functions) in the transport
> stratum contains such functions as "NAPT control", "Firewall working
> mode selection". A current draft of Recommendation Y.RACF is found as
> TD-WP4-81R2 of SG13 at the 16-27 January 2006 directory.
>
> It contains definitions of NAP, NAT, NAPT control, NAT traversal in
> Section 3. Section 6.2 is titled "NAPT Control and NAT Traversal
> Mechanisms and Scenarios." Section 9.2 is titled "Procedures for NAPT
> Control and NAT Traversal."
>
> This work is under Question 4/13 (Requirements and framework for QoS
> for NGN).
>
> 2/ SG11
>
> My understanding is that Q.5/11 (Resource control and signalling
> requirements and protocols) deals with the protocols related to RACF.
> Currently the following draft Recommendation is available as
> TD-GEN/11-248 at the 23-27 January 2006 directory of SG11:
>
> Draft Q.rcp3 − Resource control protocol − Protocol at the Rn/Rw
> (ex-Re) interface
>
> This should address the NAT/firewall traversal, but I cannot find
> relevant descriptions there. Presumably it would be in "to be worked
> out" status. Other protocols under development are listed in
> TD-PLEN/11-74 of SG11.
>
> 3/ ETSI-TISPAN
>
> ETSI-TISPN is recommending to reuse its protocols in NGN in its
> liaison to SG11 and SG13 (TD-GEN/11-241), and they would be containing
> the NAT/firewall traversal, I heard. But I cannot spot a particular
> TISPAN specification in that liaison. It was also mentioned that it
> would be H.248 and NSIS related (sorry just key words I caught). We
> got approval of H.248.37 (Gateway control protocol: IP NAPT traversal
> package) from the previous SG16 meeting in July - August 2005.
> Probably Q.3/16 expert (Mr. Schwarz?) could help me to clarify the
> situation.
>
> 4/ SG9
>
> It has Recommendation J.192 "A Residential Gateway to support the
> delivery of cable data services" apparently addressing generic
> firewall management solution, managed network address translation
> among other things.
>
Dear Q.5/16 experts,
At the last Rapporteur meeting in Geneva (28 November - 2 December
2005), I undertook to survey the subject studies in other SGs. Here
is some information as I have collected from the NGN-GSI event last
month and Study Group documents at the ITU-T site
<http://www.itu.int/ITU-T/meetingdocs/index.asp>:
1/ SG13
NGN RACF (Resource and Admission Control Functions) in the transport
stratum contains such functions as "NAPT control", "Firewall working
mode selection". A current draft of Recommendation Y.RACF is found as
TD-WP4-81R2 of SG13 at the 16-27 January 2006 directory.
It contains definitions of NAP, NAT, NAPT control, NAT traversal in
Section 3. Section 6.2 is titled "NAPT Control and NAT Traversal
Mechanisms and Scenarios." Section 9.2 is titled "Procedures for NAPT
Control and NAT Traversal."
This work is under Question 4/13 (Requirements and framework for QoS for NGN).
2/ SG11
My understanding is that Q.5/11 (Resource control and signalling
requirements and protocols) deals with the protocols related to RACF.
Currently the following draft Recommendation is available as
TD-GEN/11-248 at the 23-27 January 2006 directory of SG11:
Draft Q.rcp3 − Resource control protocol − Protocol at the Rn/Rw
(ex-Re) interface
This should address the NAT/firewall traversal, but I cannot find
relevant descriptions there. Presumably it would be in "to be worked
out" status. Other protocols under development are listed in
TD-PLEN/11-74 of SG11.
3/ ETSI-TISPAN
ETSI-TISPN is recommending to reuse its protocols in NGN in its
liaison to SG11 and SG13 (TD-GEN/11-241), and they would be
containing the NAT/firewall traversal, I heard. But I cannot spot a
particular TISPAN specification in that liaison. It was also
mentioned that it would be H.248 and NSIS related (sorry just key
words I caught). We got approval of H.248.37 (Gateway control
protocol: IP NAPT traversal package) from the previous SG16 meeting
in July - August 2005. Probably Q.3/16 expert (Mr. Schwarz?) could
help me to clarify the situation.
4/ SG9
It has Recommendation J.192 "A Residential Gateway to support the
delivery of cable data services" apparently addressing generic
firewall management solution, managed network address translation
among other things.
--
Best regards,
OKUBO Sakae
e-mail: sokubo(a)waseda.jp
Visiting Professor
Graduate School of Science and Engineering
Waseda University
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