ALFA NETWORK AWAP411 - Manual (Page 48)

AWAP411 150M Wireless 11N Access Point
decrement the TTL in an IP packet by at least 1 before forwarding it. Effectively, the TTL
is a maximum link counter. When the TTL on a packet reaches 0, the gateway is
expected to return an ICMP Time Exceeded response to your device. Traceroute
determines the path by sending the first Echo Request message with a TTL of 1 and
incrementing the TTL by 1 on each subsequent transmission until the target responds or
the maximum number of hops is reached. The maximum number of hops is 20 by default
and can be specified in the field "Traceroute Max TTL". The path is determined by
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
search 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.
Figure 4-31 Diagnostic Results
)
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.
4.7.3 Firmware Upgrade
Selecting System Tools > Firmware Upgrade allows you to upgrade the latest version of
firmware for the device on the screen shown in Figure 4-32.
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