IP-COM G3210P, Руководство пользователя

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Advanced Settings
Message
Sending
Length
Configure ICMP request packets length (18~512 bytes). By default it
is 56 bytes.
Time Interval
Configure ICMP request packets time interval (100~1000ms). The
default is 100ms.
Ping Result Display the ping result.
2.3 Tracert Check-up
Tracert is a computer network diagnostic tool for displaying the route (path) and
measuring whether network connection is available or not. When malfunctions occur to
the network, you can locate trouble spot of the network with this tracert test. Tracert
working diagram is shown below:
Tracert test process:
1
．
Device A transmits an IP packet with the TTL value 1 to Device D.
2
．
Device B (the first router that packets have reached) replies with an ICMP error of
TTL timeout (Device B’s IP 1.1.1.2 included), thus Device A obtains the first
router
’s IP (1.1.1.2);
3
．
Device A re-transmits an IP packet to Device D and TTL value is 2;
4
．
Device C replies with an ICMP error of TTL timeout, thus Device A obtains the
second router
’s IP (1.1.2.2);
5
．
The process mentioned above is performed repeatedly until packets reach
Device D. In this way, Device A can obtain IP addresses of all routers that it has
passed.