3.1.4.2.2 Multicast Cloud Discovery

To initiate multicast cloud discovery, PNRP MUST do the following:

  1. Set CloudDiscoverySSDPTargetCount to zero.

  2. If the Simple Service Discovery Protocol (SSDP) (as specified in [UPNPARCH1], section 1) is available, issue an SSDP M-SEARCH ([UPNPARCH1], section 1.2.2) for PNRP in the preferred cloud by using the following search target string in the search message.

     "urn:Microsoft Windows Peer Name Resolution Protocol: V4:IPV6:<Scope>"
    

    <Scope> MUST be replaced by either "Global", "SiteLocal", or "LinkLocal" (without the quotation marks).

  3. Set SSDPResponseRequestIdentifier to the search target string used in the M-SEARCH.