Motorola VC5090 ユーザーズマニュアル

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Wireless Applications 4 - 31
The 
Wireless Diagnostics
 window contains the following options. Tap the option to display the option window.
ICMP Ping - tests the wireless network connection.
Trace Route - tests a connection at the network layer between the vehicle computer and any place on the 
network.
Known APs - displays the APs in range using the same ESSID as the vehicle computer.
Quit - Exits the 
Wireless Diagnostics
 window.
Option windows contain a back button to 
return to the 
Wireless Diagnostics
 window. 
ICMP Ping Window
The 
ICMP Ping
 window allows testing a connection at the network layer (part of the IP protocol) between the vehicle 
computer and an AP. Ping tests only stop when you tap the 
Stop Test
 button, close the 
Wireless Diagnostics
 
application, or if the vehicle computer switches between infrastructure and ad-hoc modes.
To open the 
ICMP Ping
 window, tap the 
ICMP Ping
 in the 
Wireless Diagnostics
 window.
Figure 4-42    ICMP Ping Window
To perform an ICMP ping:
1.
In the 
IP
 field, enter an IP address or select an IP address from the drop-down list.
2.
From the 
Size
 drop-down list, select a size value.
3.
Tap 
Start Test
. The ICMP Ping test starts. Information of the ping test displays in the appropriate fields.
Trace Route Window
Trace Route
 traces a packet from a computer to a host, showing how many hops the packet requires to reach the 
host and how long each hop takes. The 
Trace Route
 utility identifies where the longest delays occur. 
The 
Trace Route
 window allows testing a connection at the network layer (part of the IP protocol) between the 
vehicle computer and any place on the network.
To open the 
Trace Route
 window, tap 
Trace Route
 in the 
Wireless Diagnostics
 window.