Installation manual
Chapter 6 Setting Up the Network and Maintaining Security 81
Networks with switches have fewer collisions and packet errors than networks Â
with hubs. This means greater reliability and speed. Consider using switches
instead of hubs.
Organize computers you’re administering using Apple Remote Desktop into small Â
groups, and close the Remote Desktop administrator application when not in use.
This helps reduce the number of status queries, thus reducing network trac.
If a client has a slow network type, consider running it in a list separate from the Â
faster clients. A single slow client can slow down network operations.
If network trac passes through rewalls, make sure you have a large Maximum Â
Transmission Unit (MTU) setting (1200 or greater). Too small an MTU setting can
result in black screens when sharing or sending screens.
If you’re using a wide-area network (WAN), or metropolitan area network (MAN), Â
make sure that the defrag bit is turned o in your router so packets don’t get
chunked up. This can result in black screens when sharing or sending screens.
Network Address Translation (NAT) networks (such as those that use the Mac OS X Â
Internet Sharing feature) require special conguration.
If you want to use Remote Desktop to access a task server behind the NAT router, set
TCP and UDP port forwarding for ports 3283 and 5900 for your task server. On your
NAT router, forward unique TCP and UDP ports to all computers behind the NAT router
that you’ll access using Remote Desktop. In the example below, TCP and UDP ports
3284 and 5901 are forwarded to the client computer at 192.168.0.1.