Ping Watch Dog - TP-Link PW-AN401 User Manual

examining the ICMP Time Exceeded messages returned by intermediate gateways and
the Echo Reply message returned by the destination. However, some gateways do not
return Time Exceeded messages for packets with expired TTL values and are invisible to
the traceroute tool. In this case, a row of asterisks (*) is displayed for that hop.
IP Address - Enter the IP Address (such as 202.108.22.5) of the PC whose connection you wish
to diagnose.
Ping Count - Specifies the number of Echo Request messages sent. The default is 4.
Ping Packet Size - Specifies the number of data bytes to be sent. The default is 64.
Ping Timeout - Specifies the time to wait for a response in milliseconds. The default is 800.
Traceroute Max TTL - Set the maximum number of hops (max TTL to be reached) in the path to
Survey for the target (destination). The default is 20.
Click the Start button to start the diagnostic procedure.
The Diagnostic Results page displays the result of diagnosis.
If the result is similar to the following screen, the connectivity of the Internet is fine.
Note:
1. Only one user can use this tool at one time.
2. Options "Number of Pings", "Ping Size" and "Ping Timeout" are only available for Ping function.
Option "Tracert Hops" is available only for Tracert function.

4.9.4 Ping Watch Dog

Selecting System Tools > Ping Watch Dog allows you to continuously monitor the particular
connection between the device to a remote host. It makes this device continuously ping a user
defined IP address (it can be the internet gateway for example). If it is unable to ping under the
user defined constraints, this device will automatically reboot.
PW-AN401/PW-AN401D
Figure 4-34 Diagnostic Results
150M Wireless N Access Point User Guide
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