[AG-TECH] beacon, vtc, multicast???

[Bob Riddle]

well ... when the Detective began, host based firewalls were not 
pervasive & the early goal was to pick ports that wouldn't normally be 
used on a Win98 machine ... so we threw darts at the wall and decided 
that the Detective would use the following ports:
    6666
    7777
    8888

We're going to change this in the next "semi-release" to use well-known 
ports (80, 21, etc.) to the Detective Server on Abilene which we hope 
will pass thru "normal" host based firewalls.  This will, we hope, 
discourage end-users from turning off their host-based firewalls (and 
thus generating more exposure to their machine).

Any & all advice will be appreciated - if you prefer you can email me or 
email "detective at internet2.edu".

Gurcharan S. Khanna wrote:

>hi,
>
>could someone refresh my memory? doesn't  the moo run over port
>7777 also? and wasn't that also a problem due to that port being
>blocked or squeezed because it was the napster port? (it was always
>extremely slow for us; i guess there's a proxy now or something?).
>seems like some other port number would be more useful in these
>filtered environments. why is 7777 the port of choice?
>
>-gurcharan
>
>--- You wrote:
>On Fri, Aug 08, 2003 at 01:06:26AM -0400, Gurcharan S. Khanna wrote:
>  
>
>>hi,
>>
>>not sure if there's a built-in tool in AG 2.0 but you can download a nice
>>little utility from detective.internet2.edu called internet detective.  this
>>will test for multicast connectivity, connection to the Abilene network, and
>>bandwidth tests.
>>    
>>
>
>Note, though, that the new version of the tool runs over port 7777, and so may
>get blocked by various P2P firewall rules.
>
>  
>

-- 
Bob Riddle (bdr at internet2.edu)    Technologist,Internet2
3025 Boardwalk, Suite 100         Ann Arbor, Michigan  48108
Business Phone: 734.913.4257      Fax Number:  734.913.4255

"Opportunity is missed by most people because it is dressed in overalls and looks like work" Thomas Edison


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