[AG-TECH] Re: AG trouble

Jennifer Teig von Hoffman jtvh at bu.edu
Mon May 2 11:55:39 CDT 2005


Have the folks at Brown looked at this document?


My first instinct would be to double-check that *all* the necessary 
ports have been opened up, and to check the other various items 
discussed in this document. AG use behind firewalls is a very tricky 
business indeed.

If no others from the ag-tech "guru cluster" have responded, please take 
heart -- many of us were at the AG Retreat last week in California and 
may not have been in our email much.


Mark Hereld wrote:
> Hello Muhamad,
> I've cc'd your problem to the ag-tech mailing list.  Thereat communes 
> the worlds largest,
> most formidable, and only official Olympic Games Access Grid guru 
> cluster.  If they can't help you, then there is no solution -- that's 
> their motto, anyway.
> Cheers,
> Mark
> P.S. I enjoyed your Abutek website as it cleared up many mysteries.
> At 04:58 PM 4/27/2005, you wrote:
>> Mark,
>> Mark,
>> From what I’ve been told, you are our AG guru contact so here’s my 
>> question:
>> We helped the nice people at brown university in Providence, RI set up 
>> an AG node. Their setup though is behind a NAT firewall. However, they 
>> opened up a set of ports for us to get through. We’ve configured the 
>> bridge config file to use that range of ports. The problem is that 
>> most of the time the vic and rat use the same port and either audio or 
>> video is stomped on (ie completely ousted). And even in the case that 
>> they get assigned different ports, they don’t get our video. I myself 
>> am neither a networking or AG wizard and couldn’t determine the source 
>> of this problem.
>> If you think you can help us with this problem, our gratitude will be 
>> extended to you. Otherwise, please let me know who you think could 
>> help us out with this problem.
>> Thanks
>> Muhamad 
> Mark Hereld                     Futures Laboratory
> http://www.mcs.anl.gov/~hereld/ Mathematics & Computer Science
>                                 Argonne National Laboratory              
> Voice: 630 252 4170             9700 S. Cass Ave. #221
> FAX:   630 252 6424             Argonne, IL 60439

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