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ZyXEL NBG-318S Manual

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Chapter 21 Logs
NBG318S User’s Guide
209
%s: Proxy mode
detected
The router detected proxy mode in the packet.
%s The content filter server responded that the web site is in the blocked
category list, but it did not return the category type.
%s:%s The content filter server responded that the web site is in the blocked
category list, and returned the category type.
%s(cache hit) The system detected that the web site is in the blocked list from the
local cache, but does not know the category type.
%s:%s(cache hit) The system detected that the web site is in blocked list from the local
cache, and knows the category type.
%s: Trusted Web site The web site is in a trusted domain.
%s When the content filter is not on according to the time schedule or you
didn't select the "Block Matched Web Site” check box, the system
forwards the web content.
Waiting content filter
server timeout
The external content filtering server did not respond within the timeout
period.
DNS resolving failed The NBG318S cannot get the IP address of the external content
filtering via DNS query.
Creating socket failed The NBG318S cannot issue a query because TCP/IP socket creation
failed, port:port number.
Connecting to content
filter server fail
The connection to the external content filtering server failed.
License key is invalid The external content filtering license key is invalid.
Table 89 Attack Logs
LOG MESSAGE DESCRIPTION
attack [TCP | UDP | IGMP
| ESP | GRE | OSPF]
The firewall detected a TCP/UDP/IGMP/ESP/GRE/OSPF attack.
attack ICMP (type:%d,
code:%d)
The firewall detected an ICMP attack. For type and code details,
see
Table 93 on page 212.
land [TCP | UDP | IGMP |
ESP | GRE | OSPF]
The firewall detected a TCP/UDP/IGMP/ESP/GRE/OSPF land
attack.
land ICMP (type:%d,
code:%d)
The firewall detected an ICMP land attack. For type and code
details, see
Table 93 on page 212.
ip spoofing - WAN [TCP |
UDP | IGMP | ESP | GRE |
OSPF]
The firewall detected an IP spoofing attack on the WAN port.
ip spoofing - WAN ICMP
(type:%d, code:%d)
The firewall detected an ICMP IP spoofing attack on the WAN
port. For type and code details, see
Table 93 on page 212.
icmp echo: ICMP (type:%d,
code:%d)
The firewall detected an ICMP echo attack. For type and code
details, see
Table 93 on page 212.
syn flood TCP The firewall detected a TCP syn flood attack.
ports scan TCP The firewall detected a TCP port scan attack.
teardrop TCP The firewall detected a TCP teardrop attack.
Table 88 Content Filtering Logs (continued)
LOG MESSAGE DESCRIPTION
… 209 …


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