Log Description Example; About The Certificate Not Trusted Log; Table 112 Log Description Example - ZyXEL Communications ZYWALL P1 User Manual

Chapter 22 Logs
Table 111 LOGS > View Log (continued)
LABEL
Clear Log
#
Time
Message
Source
Destination
Note

22.2 Log Description Example

The following is an example of how a log displays in the command line interpreter and a
description of the sample log. Refer to the appendices for more log message descriptions and
details on using the command line interpreter to display logs.
# .time
notes
message
5|06/08/2004 05:58:20 |172.21.4.187:137
|ACCESS BLOCK
Firewall default policy: UDP (W to W/ZW)

Table 112 Log Description Example

LABEL
#
time
source
destination The NetBIOS packet was sent to the 172.21.255.255 subnet port 137. This was a
notes
message

22.2.1 About the Certificate Not Trusted Log

myZyXEL.com and the update server use certificates signed by VeriSign to identify
themselves. If the ZyWALL does not have a CA certificate signed by VeriSign as a trusted
CA, the ZyWALL will not trust the certificate from myZyXEL.com and the update server. The
ZyWALL will generate a log like "Due to error code(11), cert not trusted: SSL/TLS peer
certif..." for every time it attempt to establish a (HTTPS) connection with myZyXEL.com and
342
DESCRIPTION
Click Clear Log to delete all the logs.
This field displays the log number.
This field displays the time the log was recorded. See
configure the ZyWALL's time and date.
This field states the reason for the log.
This field lists the source IP address and the port number of the incoming packet.
This field lists the destination IP address and the port number of the incoming
packet.
This field displays additional information about the log entry.
source
DESCRIPTION
This is log number five.
The log was generated on June 8, 2004 at 5:58 and 20 seconds AM.
The log was generated due to a NetBIOS packet sent from IP address 172.21.4.187 port
137.
NetBIOS UDP broadcast packet meant to discover devices on the network.
The ZyWALL blocked the packet.
The ZyWALL blocked the packet in accordance with the firewall's default policy of
blocking sessions that are initiated from the WAN. "UDP" means that this was a User
Datagram Protocol packet. "W to W/ZW" indicates that the packet was traveling from the
WAN to the WAN or the ZyWALL.
Section 23.6 on page 368
destination
|172.21.255.255:137
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