3com Webcache 1000 (3C16115) User Manual

C

HAPTER

 10: S

YSTEM

 D

IAGNOSTICS

4 In the IP Address field, enter the IP address of the device that you want to 

PING. Click Ping.

5 The Webcache sends a single PING request to the specified device and a 

message similar to the following is displayed:

Starting ping, resolution of displayed time is 10

milli-seconds

If the device is accessible and functioning correctly, a message similar to 
the following is displayed:

64 bytes from 192.156.136.22: icmp_seq=0 ttl=248 time=195.2

ms

If the device is not accessible, or is not functioning correctly, a message 
similar to the following is displayed:

No answer from 192.156.136.22

You can interrupt a PING request at any time by clicking Stop.

The Trace Route feature allows you to display the network hops from the 
Webcache to a device on an IP network. This feature is useful to diagnose 
connectivity problems such as a failed network device between the 
Webcache and the web server being accessed.

To perform a trace route to a device using the Web interface:

1 Log in to the Web interface.

2 Click Device View on the Toolbar.

3 Select Protocol -> Ping/TraceRoute in the Navigation Tree. The 

Ping/Traceroute screen is displayed.

4 In the IP Address field, enter the IP address of the device that you want to 

trace. Click TraceRoute.

5 The Webcache sends a trace route request to the specified device and a 

message similar to the following is displayed:

traceroute to 191.128.40.121, 30 hops max, 38 byte packets

If the device is accessible and functioning correctly, a message similar to 
the following is displayed which displays the network hops. Each hop 
may take a few seconds to complete: