Quatech IN5000, DP500, HD500 user manual Configuring Ethernet Adapter, Ethernet Bridge Functionality

AirborneDirect™ Users Guide Quatech, Inc.

23.0 Configuring Ethernet Adapter

The ABDG-ET-DP5XX/IN5XXX devices are shipped preconfigured for use as an Ethernet adapter. All that is required is configuration of the WLAN parameters and security protocols; however the following section will cover the full configuration of an Ethernet Device to aid in the installation and deployment of the units.

The Airborne Ethernet adapter is a fully functional NAT Level 3 router, supporting a public IP address for the WLAN interface and a private network for the attached devices on the Ethernet interface.

Network Address Translation (NAT) is the process of modifying network address information in datagram packet headers while in transit across a traffic routing device for the purpose of remapping a given address space into another. In the case of a NAT Level 3 device, the modification of the packet headers provides for a translation between a single public IP address (that of the WLAN interface) and the IP address of the devices on the private network (Ethernet interface).

The Airborne Adapter WLAN interface is considered the public address and will be the point of contact on the target network (see Figure 20). This interface supports all the wireless and network authentication requirements including support for WPA2-Enterpise. It can acquire an IP address through both DHCP or user configured static IP. Configuration, association and authentication are handled entirely by the Airborne Bridge and require no interaction from the wired host on the private network.

Figure 20 - Ethernet Bridge Functionality

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