Table 175 Remote Management Logs; Table 176 Ipsec Logs - ZyXEL Communications ZyXEL ZyWALL 2WG User Manual

Chapter 26 Logs Screens
Table 174 Attack Logs (continued)
LOG MESSAGE
Firewall sent TCP packet
in response to DoS attack
TCP
ICMP Source Quench ICMP
ICMP Time Exceed ICMP
ICMP Destination
Unreachable ICMP
ping of death. ICMP
smurf ICMP
IP address in FTP port
command is different from
the client IP address. It
maybe a bounce attack.
Fragment packet size is
smaller than the MTU size
of output interface.

Table 175 Remote Management Logs

LOG MESSAGE
Remote Management: FTP denied
Remote Management: TELNET denied
Remote Management: HTTP or UPnP
denied
Remote Management: WWW denied
Remote Management: HTTPS denied
Remote Management: SSH denied
Remote Management: ICMP Ping
response denied
Remote Management: SNMP denied
Remote Management: DNS denied

Table 176 IPSec Logs

LOG MESSAGE
Discard REPLAY packet
Inbound packet
authentication failed
500
DESCRIPTION
The firewall sent TCP packet in response to a DoS attack
The firewall detected an ICMP Source Quench attack.
The firewall detected an ICMP Time Exceed attack.
The firewall detected an ICMP Destination Unreachable attack.
The firewall detected an ICMP ping of death attack.
The firewall detected an ICMP smurf attack.
The IP address in an FTP port command is different from the
client IP address. It may be a bounce attack.
The fragment packet size is smaller than the MTU size of output
interface.
DESCRIPTION
Attempted use of FTP service was blocked according to
remote management settings.
Attempted use of TELNET service was blocked
according to remote management settings.
Attempted use of HTTP or UPnP service was blocked
according to remote management settings.
Attempted use of WWW service was blocked according
to remote management settings.
Attempted use of HTTPS service was blocked
according to remote management settings.
Attempted use of SSH service was blocked according to
remote management settings.
Attempted use of ICMP service was blocked according
to remote management settings.
Attempted use of SNMP service was blocked according
to remote management settings.
Attempted use of DNS service was blocked according
to remote management settings.
DESCRIPTION
The router received and discarded a packet with an incorrect
sequence number.
The router received a packet that has been altered. A third party
may have altered or tampered with the packet.
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