User's Manual Part 4

Page 84 SonicWALL SonicOS Standard Administrator’s Guide
SonicWALL Log Messages
Each log entry contains the date and time of the event and a brief message describing the event. It is also
possible to copy the log entries from the management interface and paste into a report.
• Dropped TCP, UDP, or ICMP packets
When IP packets are blocked by the SonicWALL, dropped TCP, UDP and ICMP messages are
displayed. The messages include the source and destination IP addresses of the packet. The TCP or
UDP port number or the ICMP code follows the IP address. Log messages usually include the name
of the service in quotation marks.
• Blocked Web Sites
When a computer attempts to connect to the blocked site or newsgroup, a log event is displayed. The
computer’s IP address, Ethernet address, the name of the blocked Web site, and the Content Filter
List Code is displayed. Code definitions for the 12 Content Filter List categories are displayed in the
table below:
Descriptions of the categories are available at <http://www.sonicwall.com/products/cfs.html>.
• Blocked Java, etc.
When ActiveX, Java or Web cookies are blocked, messages with the source and destination IP
addresses of the connection attempt is displayed.
• Ping of Death, IP Spoof, and SYN Flood Attacks
The IP address of the machine under attack and the source of the attack is displayed. In most attacks,
the source address shown is fake and does not reflect the real source of the attack.
Tip! Some network conditions can produce network traffic that appears to be an attack, even if no one is
deliberately attacking the LAN. Verify the log messages with SonicWALL Tech Support before
contacting your ISP to determine the source of the attack.
Clear Log
Clicking Clear Log deletes the contents of the log.
E-mail Log
If you have configured the SonicWALL to e-mail log files, clicking E-mail Log sends the current log files
to the e-mail address specified in the Log>Automation>E-mail section.
1. Violence/Hate/Racism 5. Weapons 9. Illegal Skills/Questionable Skills
2. Intimate Apparel/
Swimsuit
6. Adult/Mature Content 10. Sex Education
3. Nudism 7. Cult/Occult 11. Gambling
4. Pornography 8. Drugs/Illegal Drugs 12. Alcohol/Tobacco