Re: [BEHAVE] Some comments on draft-li-behave-nat444-test-00

["Zhangzongjian (Thomas)" <[e-mail]>]

Dear Penno

The answers are online below.


Best regards
thomas

-----Original Message-----
From: Reinaldo Penno (repenno) [mailto:[e-mail]] 
Sent: Thursday, July 12, 2012 12:41 AM
To: Will Liu (Shucheng); Zhangzongjian (Thomas); Dan Wing (dwing); [e-mail]; [e-mail]; [e-mail]; [e-mail]
Cc: [e-mail]
Subject: Some comments on draft-li-behave-nat444-test-00

Hello,

Some comments on your draft which I believe is interesting.

Most of your tests are subscriber initiated connections which results in
Internet (I) ->subscriber (S) traffic over TCP/UDP. We all know this works
well with CGN. The interesting cases are I/S<->S for gratuitous
connections. In that sense, some comments below.

Is on-line gaming with consoles popular in China? PS3, XBOX, Nintendo?
Thomas:
PS3, XBOX, Nintendo is seldom played in China. PS3, XBOX, Nintendo are not published in China and there are no game servers for these three game in China.


People do not seed torrents in China? That is very popular in other parts
of the world. 
Thomas:
Yes, People seed torrents, but rarely.   
We mainly tested download in Bittorrent and eMule.


I would like to understand how the CGN was configured. Were mappings APP
enabled? EIM & EIF? Hairpinning enabled? This, of course is specially
interesting on the I/S<->S scenarios.
Thomas:
Mappings are enabled by a service board in CGN device.  CGN packets will be sent to this board.  I am not sure whether this answer can satisfy your question.
The mapping is EIM without EIF.
Which application CGN configuration are you interesting in? what configuration do you want to know?  I will try to provide more information for you, though I not sure I can get configure from China Telecom.


As far a VPN goes, the interesting ones from CGN perspective are IPsec
(not over UDP) and PPTP.
Thomas:
In VPN fields, only iAccess is tested. IPsec and PPTP are not tested.


Thanks,

- RP

>
>Have a nice day!
>Will
>
>-----Original Message-----
>From: Zhangzongjian (Thomas)
>Sent: Wednesday, July 11, 2012 11:40 AM
>To: Dan Wing; [e-mail];
>[e-mail]; [e-mail]; [e-mail]; Will Liu
>(Shucheng)
>Cc: [e-mail]
>Subject: RE: comment on draft-li-behave-nat444-test-00, FTP active/passive
>
>Dear Dan
>In fact we tested the typical FTP active model as an illustration for the
>FTP scenarios. In such an example, the FTP server is in public networks
>and FTP client is in private network. Thanks for your comments. We will
>add the detailed description in the next version.
>
>Thomas
>Best regards
>
>
>-----Original Message-----
>From: Dan Wing [mailto:[e-mail]]
>Sent: Wednesday, July 11, 2012 8:24 AM
>To: [e-mail]; [e-mail];
>[e-mail]; [e-mail]; Will Liu (Shucheng);
>Zhangzongjian (Thomas)
>Subject: comment on draft-li-behave-nat444-test-00, FTP active/passive
>
>Hi.
>
>It would be helpful in your FTP test results if you indicated if passive
>(PASV) or active mode was tested.
>
>-d
>
>
>_______________________________________________
>Behave mailing list
>[e-mail]
>https://www.ietf.org/mailman/listinfo/behave