Page 92 SonicWALL Internet Security Appliance 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 f rom the management inte rface and paste into a r eport.
•TCP, UDP, or ICMP packets dropp ed
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 o r UDP p ort nu mber o r the IC MP cod e foll ows the IP add ress. Log me ssage s usua lly inc lude
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.
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 We b c ook ie s are b lo cke d, m e ssag es with the source and destination IP
addresses of the connection at t empt 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 traff ic that appears to be an attac k, eve n 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 are needed.
a=Violence/Profanity g=Satanic/Cult
b=Partial Nudity h=Drug Culture
c=Full Nudity i=Militant/Ex tremist
d=Sexual Acts j=Sex Education
e=Gross Depictions k=Gambling/Illegal
f=Intolerance l=Alcohol/Tobacco