1.4 Relationship to Other Protocols

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The DirectPlay 8 Protocol: NAT Locator depends on the User Datagram Protocol (UDP) [RFC768] and Internet Protocol version 4 (IPv4). The extensions provided in the DirectPlay 8 Protocol: NAT Locator are implemented in conjunction with the DirectPlay 8 Protocol: Core and Service Providers, and nominally the DirectPlay 8 Protocol: Reliable and the DirectPlay 8 Protocol: Host and Port Enumeration.

No other protocols depend on the presence of the DirectPlay 8 Protocol: NAT Locator extensions.

It is not recommended that NAT resolver queries be performed when a Universal Plug-and-Play (UPnP) Internet Gateway Device (IGD) is configured with a port mapping; instead, the UPnP port mapping takes precedence [UPNPWANIP].