User Guide

Logging and Alerts Page 47
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.
• TCP, UDP, or ICMP packets dropped
When IP packets are blocked by the SonicWALL, dropped TCP, UDP and ICMP
messages is 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.
• Web, FTP, Gopher, or Newsgroup blocked
When a machine attempts to connect to the blocked site or newsgroup, a log event is
displayed. The machine'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 shown below.
Descriptions of these categories are available on the Web at <http://www.sonicwall.com/
Content-Filter/categories.html>.
• ActiveX, Java, Cookie or Code Archive blocked
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.
Note: Some network conditions can produce network traffic that appears to be an attack,
even when no one is deliberately attacking the LAN. To follow up on a possible attack,
contact your ISP to determine the source of the attack. Regardless of the nature of the
attack, your LAN is protected and no further steps must be taken.
a=Violence/Profanity g=Satanic/Cult
b=Partial Nudity h=Drug Culture
c=Full Nudity i=Militant/Extremist
d=Sexual Acts j=Sex Education
e=Gross Depictions k=Gambling/Illegal
f=Intolerance l=Alcohol/Tobacco
integrated_manual.book Page 47 Friday, October 12, 2001 2:56 PM