HP Remote Graphics Software 5.4.8 User Guide

Application support
RGS supports all applications, except those applications that use full screen exclusive mode. RGS may
not be suitable for most full screen games. If a full-screen MS-DOS command prompt window is created
on the Sender (using, for example, command.com), the window will be reset to its default size by RGS.
Likewise, if a full-screen Windows XP Professional command prompt window is created (using cmd.exe
or the command prompt icon), the window will also be reset to its default size by RGS. Full-screen
DirectDraw applications are not supported (however, DirectDraw applications in a Window may work,
and should be qualified individually).
On Remote Computers running Linux, OpenGL-based applications can only be remoted if the Remote
Computer is using NVIDIA graphics.
RGS 5.2.6 and newer Sender and Receiver executables are signed for compatibility with strict anti-
virus programs.
Networking support
RGS uses TCP/IP over a standard computer network, and supports Ethernet connection speeds of
10/100/1000BASE-T (Gigabit). The RGS Sender listens on TCP/IP port 42966. The port used by the
RGS Receiver is assigned by the Local Computer OS and can vary. HP recommends full-duplex
operation between the Sender and Receiver. For information on using RGS through a firewall, see
Using RGS through a firewall on page 98.
Beginning in RGS 5.4.0, the Sender defaults to “listening” to all available network interfaces. The
Sender also has the ability to dynamically add or remove network interfaces and update IP address
changes of a network interface while there are no active RGS connections. If there are one or more
active RGS sessions, the Sender will update the network interface bindings after the connections are
disconnected. For instance, if an additional network interface is enabled and configured, the Sender
will add that network interface to the binding list and begin listening on that network interface for
connect requests. If the IP address of a network interface changes due to a DHCP change for instance,
the Sender will update the network interface binding. The Sender does not have to be restarted as with
previous versions of RGS to update network interface bindings.
NOTE: At RGS 5.2.5, the capability was added to specify the port number used by the RGS Sender.
The default Sender port number is 42966, as noted above. The Sender port number can be changed
using the Rgsender.Network.Port property. If this property is used to change the Sender port number
from its default value of 42966, the Sender port number must then be specified in establishing an RGS
connection from the Receiver to the Sender.
Connection topologies
This section describes the connection topologies supported by RGS, such as how a single Local
Computer may connect to multiple Remote Computers.
The Remote Computer frame buffer
After making a connection between a Local Computer and a Remote Computer, the Remote Computer
Sender transmits its complete frame buffer to the Local Computer. The frame buffer is the memory on the
16 Chapter 2 RGS overview