SonicWALL NSA Series Getting Started Manual page 46

NSA_5000_4500_3500_GSG.book Page 45 Wednesday, January 19, 2011 6:21 PM
Troubleshooting Diagnostic Tools
SonicOS provides a number of diagnostic tools to help you
maintain your network and troubleshoot problems. Several tools
can be accessed on the System > Diagnostics page, and
others are available on other screens.
This section contains the following subsections:
Using Ping
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Using the Active Connections Monitor
•
Using Log > View
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Using Packet Capture
•
Using Ping
Ping is available on the System > Diagnostics page.
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The Ping test bounces a packet off a machine on the Internet
and returns it to the sender. This test shows if the SonicWALL
security appliance is able to contact the remote host. If users on
the LAN are having problems accessing services on the
Internet, try pinging the DNS server, or another machine at the
ISP location. If the test is unsuccessful, try pinging devices
outside the ISP. If you can ping devices outside of the ISP, then
the problem lies with the ISP connection.
Using the Active Connections Monitor
The Active Connections Monitor displays real-time,
exportable (plain text or CSV), filterable views of all connections
to and through the SonicWALL security appliance. This tool is
available on the Systems > Diagnostics page.
You can filter the results to display only connections matching
certain criteria. You can filter by Source IP, Destination IP,
Destination Port, Protocol, Src Interface and Dst Interface.
Enter your filter criteria in the Active Connections Monitor
Settings table.
The fields you enter values into are combined into a search
string with a logical AND. Select the Group Filters box next to
any two or more criteria to combine them with a logical OR.
SonicWALL NSA 5000/4500/3500 Getting Started Guide Page 45