Cirkuit Planet IPX-300 Manuel D’Utilisation

UPnP provides support for communication between control points and devices. The network media, the 

TCP/IP protocol suite and HTTP provide basic network connectivity and addressing needed. On top of 

these open, standard, Internet based protocols, UPnP defines a set of HTTP servers to handle 

discovery, description, control, events, and presentation. 

 

 

Figure 4-20. UPnP settings 

 

Enable/Disable UPNP Service to working, default 

setting is Disable. 

Table 4-18. UPnP description 

 
 
DDNS 

The DDNS (Dynamic DNS) service allows you to alias a dynamic IP address to a static hostname, 

allowing your computer to be more easily accessed from various locations on the Internet. Without 

DDNS, the users should use the WAN IP to reach internal server. It is inconvenient for the users if this 

IP is dynamic. With DDNS supported, you apply a DNS name (e.g., www.IPPBX.com) for your server 

(e.g., Web server) from a DDNS server. The outside users can always access the web server using the 

www.IP-PBX.com regardless of the WAN IP. 

When you want your internal server to be accessed by using DNS name rather than using the dynamic 

IP address, you can use the DDNS service. The DDNS server allows to alias a dynamic IP address to a 

static hostname.   

 

Unlike DNS that only works with static IP addresses, DDNS works with dynamic IP addresses, such as 

those assigned by an ISP or other DHCP server. DDNS is popular with home networkers, who typically 

receive dynamic, frequently-changing IP addresses from their service provider.         

 

 

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DDNS is a method of keeping a domain name linked to a changing (dynamic) IP address. With most 

Cable and DSL connections, you are assigned a dynamic IP address and that address is used only for 

the duration of that specific connection. With the IP-PBX, you can setup your DDNS service and the