[AG-TECH] Outside AV not working

[Donald Roeber]

Sorry, that should be "I'm now using..."

On Feb 22, 2005, at 1:04 PM, Donald Roeber wrote:

> This seems to have fixed the problem.  I'm not using 224.2.0.0 -  
> 224.2.0.0.2 and my external testers are confirming that this works for  
> them.
>
> On Feb 21, 2005, at 6:22 PM, Thomas D. Uram wrote:
>
>> Hi Don:
>>
>> I believe (based on other conversations with you) that you're using  
>> multicast addresses similar to 224.0.0.x on your server.  This is,  
>> apparently, a problem.
>>
>> From the cisco Guidelines for Enterprise IP Multicast Address  
>> Allocation  
>> (http://www.cisco.com/en/US/tech/tk828/ 
>> technologies_white_paper09186a00802d4643.shtml), it looks like you  
>> should avoid 224.0.0.0-224.0.0.255, which "is used by network  
>> protocols on a local subnet segment".
>>
>> This same document claims that the 'global' range is  
>> 224.1.0.0-238.255.255.255, so addresses there should work for you.   
>> There are more details in RFC3171, if you're interested.
>>
>> Let us (ag-tech) know if this fixes your problem.
>>
>> Tom
>>
>>
>> Donald Roeber wrote:
>>> We're running the latest AccessGrid Toolkit on MacOS X, as both a  
>>> VenueServer and a UniCast Bridge for that VenueServer.  The server  
>>> is multicast enabled, and so are clients on the upenn.edu network.   
>>> Clients on the upenn.edu network can connect to the VenueServer and  
>>> use RAT and VIC just fine.  Unfortunately, for people outside of the  
>>> Penn network, audio and video doesn't work, but they can still use  
>>> the text chat built into the VenueClient.  We don't have any  
>>> firewalls or anything like that in place.  Because of a bug in the  
>>> MacOS X version of the AGToolKit we're using manual multicast  
>>> addressing for each venue.  Each venue is assigned a unique IP  
>>> address for audio and video, and a unique even numbered port number  
>>> for each service as well.
>>> Any help would be greatly appreciated.
>>>
> -- 
> Donald Roeber
> ISC Networking
>
-- 
Donald Roeber
ISC Networking