Using The Network Diagnostic Tools - NETGEAR STM150 Appliance Reference Manual

ProSecure Web/Email Security Threat Management (STM) Appliance Reference Manual
To display the Diagnostics screen, select Monitoring > Diagnostics from the menu. To facilitate
the explanation of the tools, the Diagnostics screen is divided and presented in this manual in three
figures (Figure 6-20 on page 6-41, Figure 6-21 on page 6-42, and Figure 6-22 on page 6-44).

Using the Network Diagnostic Tools

This section discusses the Ping or Trace an IP Address section and the Perform a DNS Lookup
section of the Diagnostics screen.
Figure 6-20 [Diagnostics, screen 1of 3]
Sending a Ping Packet
Use the Ping utility to send a ping packet request in order to check the connection between the
STM and a specific IP address. If the request times out (no reply is received), it usually means that
the destination is unreachable. However, some network devices can be configured not to respond
to a ping. The ping results will be displayed in a new screen; click "Back" on the Windows menu
bar to return to the Diagnostics screen.
To send a ping:
1. Locate the Ping or Trace an IP Address section on the Diagnostics screen.
2. In the Host field, enter the IP address or host name that you want to ping.
3. Click the ping button. The results of the ping are displayed below the Host field.
Tracing a Route
A traceroute lists all routers between the source (the STM) and the destination IP address.
To send a traceroute:
Monitoring System Access and Performance 6-41
v1.0, September 2009