1.5 Prerequisites/Preconditions

This protocol assumes the prerequisites/preconditions described in [MS-TURN] section 1.5.

This protocol requires that the TURN client authenticate with the TURN server.

This protocol requires that the TURN clients be able to communicate through a signaling protocol, such as SIP, to exchange transport addresses that identify the client’s site address and relay site address.

This protocol requires that the TURN server be configured with appropriate network topology information. This information includes network subnets that are used to identify network sites, along with bandwidth policy for any network links used to connect the network sites. The bandwidth policy information includes configured bandwidth availability for various media stream modalities on the network link used to connect the network sites.