Apple Remote Desktop 2.2 - Manual (Page 49)

Chapter 2 Setting Up 49
If you want to use Remote Desktop from behind a NAT router to access computers
beyond the NAT router, you need to set TCP and UDP port forwarding for ports 3283
and 5900 to your administrator computer. Similarly, if you wish to access a client
computer that is behind a NAT router, you need to set the router to forward TCP and
UDP ports 3283 and 5900 to the client computer you wish to access.
Note: You can access only that one client computer.
Using Apple Remote Desktop With Computers in an AirPort
Wireless Network
Using Apple Remote Desktop to observe or control client computers connected using
AirPort wireless technology can sometimes result in impaired performance or cause
communication errors to appear in the Computer Status window.
To get the best performance from ARD with computers in an AirPort wireless network:
• Make sure that all AirPort Base Stations and all ARD client computers have the latest
versions of ARD software, AirPort software, and Mac OS software installed.
• Limit the number of clients that connect to an AirPort Base Station. AirPort clients on
a base station receive all network communication packets sent to any one client on
that base station. Although clients ignore packets that aren’t addressed to them, CPU
resources are used to identify and discard the packet.
• Display shared screens in black and white rather than in color.
• Don’t connect the ARD administrator computer to the network via AirPort. Connect it
directly to the Ethernet network to which your AirPort Base Station is connected.
• Configure your AirPort Base Station with a station density of High and increase the
multicast rate to 11 Mbps using AirPort Admin Utility. Using the base station density
and multicast rate settings limits the range of each AirPort Base Station’s network,
requiring client computers to be fewer than 50 meters from a base station.
Getting the Best Performance
To get the best performance when using the Share Screen, Observe, and Control
commands:
• Reduce the use of animation on remote computers. For example, you can simplify
Dock preference settings by turning off animation, automatic hiding and showing,
and magnification effects.
• View the client’s screen in a smaller window when using the “fit to window” option.
• View the client’s screen with fewer colors.
• Use a solid color for the desktop of the screen you’re sharing.
• Share screens only on local networks. If you share a screen with a computer
connected across a router, screen changes happen more slowly.
• Organize computers you’re administering using ARD into small groups, and close the
administrator software when not in use. This helps reduce the number of status
queries, thus reducing network traffic.