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Article 174   Created 10 Sep 2003 Modified   17 Sep 2003 Hits 401 UPnP Universal Plug and Play (UPnP) UPNP support is available in SmartFTP v1.0 Build 979 or higher. Benefit UPnP can solve NAT connection problems with PORT mode. Typical Situation The client is behind a NAT and wants to connect to a FTP server supporting PORT mode only (because the server is behind a NAT as well or due to security / firewall policies). In the case without UPnP the ports have to be manually enabled and forwarded in the NAT router and a port range has to be defined in the FTP client configuration. With the new feature everything is automatically taken care of for the user. Requirements Windows XP UPnP compatible NAT router UPnP Advantages and FTP Detect External IP Address(Send correct IP address in PORT command) Dynamic Port Mappings (Add/Remove port mappings on the fly) Security Concerns The ports are only opened as long as they're needed. The UPnP mappings are automatically removed when the transfer is finished or aborted. NAT Routers with UPnP Support Linksys BEFSR11, BEFSR41W, BEFSR41, BEFSR81, BEFSRU31 Enable UPnP for Linksys Router D-Link DI-604, DI-804V Netgear MR814, MR814v2, WGR614, WGR614v2 Enable UPnP for Netgear Router UPnP related article Zyxel Zyxel Routers with UPnP Enable UPnP on Zyxel P650 Links UPnP FAQ Description of Universal Plug and Play Features in Windows XP

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