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.