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Obtaining an External Routable IP Address
Added 05/19/03
Article ID#: KI0038

Internet Connection Requirements

Prior to installing the Internet Reservation Module, certain "Internet Requirements" must be met.  

  1. Your property must have a website.
  2. Your website must be accessible 24 hours per day, 7 days per week, 365 days per year.
  3. You must obtain an " External Routable IP Address "  from your Internet Service Provider. This external routable IP address will then be routed to the Internal IP address on your Internet Reservation Module Bridge Server.

Any questions regarding the following "Internet Requirements" should be directed to your Internet Service Provider or website developer. The following diagram attempts to illustrate how the External Routable IP address is routed to the internal address on the IRM Bridge Server.

                            The Data and IRM Server must be in the same subnet range.
               Only 1 Network Card should be installed on both the Data Server and the IRM Server
                    
In the above example the " External Routable IP address " 65.38.150.15 is routed to the Internal IRM IP address 192.168.43.8.

Routable versus non-routable IP Addresses:
---------------------------------------------------------------
IP addresses are either "routable" or "non-routable". Routable addresses can be used to route on the Internet and Non-Routable addresses cannot be used to route on the Internet. Non-routable IP addresses are usually used behind firewalls. In the above diagram both the Data and IRM servers would be assigned non-routable IP addresses. There are only 3 valid non-routable ranges:
 
10.x.x.x
192.168.x.x
172.16.x.x
Routable IP Addresses
--------------------------------------------
All other IP addresses except the ones above are "routable". Routable IP addresses must be UNIQUE, i.e.. if your IP Service Provider assigns a computer 15.1.1.1 no other device in the entire world should have 15.1.1.1. 

Part of the IRM installation requires manually assigning an IP address ( Internal Non- Routable ) to the IRM Bridge Server.
Example : 192.168.43.8.  This internal address must be in the same subnet range as the RDP data server. If the IP for the IRM Bridge is 192.168.43.8 then the IP for the data server must be 192.168.43.xxx, where "xxx is between 1 and 255 but not "8". 

An external, routable IP address is also required. This is the address used by guests, travel agents, groups, etc to access the IRM.  This " External Routable  IP " address  must be obtained from your Internet Service Provider (ISP).  The firewall is then configured to redirect the HTTP requests (port 80) from the external IP address to the Internal IP address on the IRM Bridge Server.

 

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