Hi

For security in inter Gatekeeper conmmunication, currently there is no authentication capabltiy exchange for selection of a common security profile. This facility is provided in the case of communication between the Endpoint and Gatekeeper using the GRQ GCF exchange.

The field used for this are AuthenticationCapabilty and AlgorithmOIDs in GRQ ( Capabilities of the EP) and AuthenticationMode and AlgorithmOID in GCF ( The capabiltiy selected by Gatekeeper)

Wouldnt it be good to add the " same fields in the LRQ and LCF" as his would help in selection of a common profile between Gatekeepers.

Though the profile which is used can be determined from the TokenIOD and AlgorithmOID in the message, as the number of security profiles increases the Gatekeepers will have to use a trial and error method to arrive at a common security Profile. Wouldnt this be a overhead which can be avoided ?

Cheers H.323 Ivan

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