AG Port issues (was Re: [AG-TECH] Access Grid 3.0 beta1 available !)

Colin Perkins csp at
Tue Jan 31 13:09:51 CST 2006

On 31 Jan 2006, at 18:58, R. P. Channing ["Rick"] Rodgers wrote:
> All of these points are well made.  I certainly subscribe to the  
> "one port, one
> service" line of thought, but the underlying problem remains, that  
> to actually
> deploy AG in most locations today, one has to deal with network  
> administrators
> and the policies they are required to implement (and it's pointless to
> villify either), and we can not even hand these administrators a  
> simple printed
> list of ports to open.
> I made a stab at this some weeks back, starting with the document  
> created
> by Javier Gomez Alonso of Manchester (see
> David E. Bernholdt of Oak Ridge National Laboratory then recast my  
> ASCII table
> in the form of a Excel spreadsheet, which I attach, as I can not  
> find my
> ASCII original now.  There are glaring holes for rat anc vic, among  
> others.
> We really, really, *really* need to create such a list, minimizing  
> the number
> of ports as far as is possible, consistent with clean engineering  
> and adequate
> functionality.

Indeed. Someone remind me why AccessGrid uses large port ranges for  
the media streams? Is this just a hold-over for compatibility with sdr?


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