Remote Access Gateway IGW/920 - First Steps
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E M B E D D E D
S Y S T E M S
13
5.3
Testing the TCP/IP Communication
To test the Ethernet connection on the basis of TCP/IP-protocols between the IGW/920 and
the host PC we use the very popular TCP/IP-utility program ping. Please open a DOS win-
dow on your host PC (you can find it in the Windows Start menu) and enter:
ping 192.168.0.126
Directly after this command test data is send from the host PC to the IGW/920 via Ethernet
LAN. The IGW/920 must answer on the same way within a certain period of time. Fig. 10
shows the entry of the command as well as the successful execution. In case of an error ping
reports a timeout.
Figure 10:
Communication check via ping
The IGW/920 must answer every ping. Otherwise an error will occur. In this case you have
to check all parts of your LAN connection, including the IP address of the host PC. The
value of the IP address should be 192.168.0.1. For an easy check of the IP address within the
DOS window, you can use the following DOS command:
ipconfig
The fig. 11 shows the ipconfig-messages of a Windows-XP-PC.
Note: We assume at this point that the IGW/920 has the ex factory IP address
192.168.0.126. If you have changed this address, you must regard this for the ping
parameter.