10 • AirMedia Presentation Gateway Deployment Guide – DOC. 7693K
AirMedia Device Considerations
Device Naming
The use of IP addresses can cause confusion. Crestron recommends each AirMedia
device be given a hostname that is easy for the user to remember. The IP address can be
hidden from the on-screen display, which limits the amount of information presented to
the user. Crestron has implemented the following automated ways of resolving a device
by hostname:
• NetBIOS resolution
• DHCP options 12 and 81
• NSUPDATE for dynamic DNS servers
• Bonjour and Multicast DNS
Crestron recommends configuring either a static IP or a DHCP reservation for the IP
address, as well as a DNS entry for the AirMedia device. Once the hostname is
configured, the IP address display can be turned off in the AirMedia web pages.
NetBIOS is used only if the hostname is 15 characters or less and is disabled if the
hostname is longer than 15 characters.
• NSUPDATE is sent under the following conditions:
• If the device is using a static address and the DNS field is populated
• If the device is using DHCP to obtain an IP address, and the Domain Name field
in the
Network Setup screen is not blank
NOTE: If the domain name field is blank, NSUPDATE is not sent.
Device Configuration
AirMedia is configured through the built-in web pages of the device. Parameters such as
the device’s IP address, and connections to control systems and Crestron Connected®
devices are set with a web browser. The username and password of a new device should
be changed from the initial value. For AirMedia 2.0 devices, use of Active Directory®
credential management for management of login information is encouraged when
available.
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