[AG-TECH] Ports used in AG - part 2

[Roberts, Ian E]

Randy, although not a network person, I do live behind a restrictive firewall
and use the Argonne bridge. During a normal session, we have to provide three
port numbers to the network folk for them to open. The first is the port number
that comes up in vic on the display machine. The second number is one number
higher than the vic number (this is the port that the remote site window names
travel on). The third is the number that our video machine vic uses to send our
video.

RAT and DPPT (client, not master) work just fine, with no firewall
modifications. Opening the ports is only for receiving data. The video machine
can broadcast our video through the firewall, but the unicast data coming back
doesn't match up with any requests the firewall knows about, so it is blocked by
default.

By the way, the port numbers for the venues on the Argonne bridge change each
time the bridge software is restarted, so we connect to the room early, get the
numbers, and hope it doesn't have to be restarted before the meeting (this is
why you might see PNNL videos in a room hours before meeting time).

Hope this helps,
~Ian

-----Original Message-----
From: Randy Groves [mailto:randy.groves at boeing.com]
Sent: Tuesday, October 22, 2002 4:04 PM
To: ag-tech at mcs.anl.gov
Subject: Re: [AG-TECH] Ports used in AG - part 2


Thanks for the info that all of you have supplied.  I still have one 
question that hasn't been answered, though.  How many tools, clients, etc. 
that are used in AG are 'port shifters'?  That is, how many respond on a 
different port from the port on which the incoming request  was made?  Is 
this information anywhere to be had?

Most important to me right at the moment, is the action of the Argonne MSB 
(source not available) and not having had any real-live experience with 
QuickBridge - it's action - specifically on both what a unicast client sees 
on the unicast side of the bridge.

Thanks!!

-randy

  At 08:55 AM 10/18/2002 -0500, Michael Miller wrote:
>Randy,
>
>The vv.dat file included with the quickbridge contains a list of all the 
>IP's and ports used for the various ANL venues.  I'm not sure how up to 
>date that is, but it's a good place to start.  Also the IP's and ports 
>used on NCSA's venues server can be found here:
>http://agschedule.ncsa.uiuc.edu/venues.asp
>
>Beyond that there is VNC and DPPT, and perhaps RPPT.  Also any polycom 
>addresses you want to link with will need to be opened.
>
>
>Michael Miller
>NCSA
>
>At 03:01 PM 10/17/2002 -0700, you wrote:
>
>>I'm faced with having to detail the ports used in AG work to our network
>>folks who have decided that our present external connection, which is
>>getting upgraded, needs a port filter applied.  I BELIEVE, but I haven't
>>verified, that this box is smart enough that we don't have to detail all
>>the ports from which we will be originating transmissions, but incoming
>>ports that don't correspond to outgoing ports are an unknown for me.  Is
>>there a document, or some collected wisdom, that I can tap?
>>
>>Unfortunately, I don't think that 'leave all the ports open' is going to
>>be accepted as a valid answer.
>>
>>Thanks!!
>>
>>-randy
>
>Thanx,
>
>Michael Miller
>System Engineer
>Visualization Technology Support
>Computing and Data Management
>National Center for Supercomputing Applications
>University of Illinois - UC
>
>"If you're clear in your vision and trust the people in your team with 
>clear objectives, they will invariably do their best to achieve everything 
>desired, and usually deliver everything you could have hoped for and even 
>more." -Paul Debevec
>