Sonicwall Log Messages - SonicWALL TELE3 SP Administrator's Manual

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 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 shown below.
a=Violence/Profanity
b=Partial Nudity
c=Full Nudity
d=Sexual Acts
e=Gross Depictions
f=Intolerance
Descriptions of the categories are available 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.
g=Satanic/Cult
h=Drug Culture
i=Militant/Extremist
j=Sex Education
k=Gambling/Illegal
l=Alcohol/Tobacco
Logging and Alerts Page 29