Re: Voice Chat & Web Cam

"Sergio Fonseca [MVP]" <fonsecase@xxxxxx> wrote in message
news:%23su1F7XYFHA.2796@xxxxxxxxxxxxxxxxxxxxxxx
> You can start here
>
> http://www.microsoft.com/technet/prodtechnol/isa/2000/maintain/isaimsec.mspx
>
It isn't much help:

"The Remote Assistance feature uses Remote Desktop Protocol (RDP), the same
protocol used by Microsoft Terminal Services. Such a connection cannot be
enabled for NAT through a non-UPnP device such as ISA Server, without
applying specific ISA Server configuration for each individual Remote
Assistance session."

Which means RDP/remote control will work if you manually publish the
incoming 3389 port to a specific workstation...not very practical.

"Audio, video and whiteboard features use a variation of the SIP protocol
and will not succeed through ISA Server if the session is initiated by the
internal client behind the ISA Server computer. The only functional session
occurs when the session is initiated by an external Internet client."

The "external client" can't be behind another NAT device either. Short
answer: it isn't supported in ISA unless you tunnel with VPN.
Jack Pea***


.