ZyXEL MAX-306 User Guide - Page 235

Table 99, Table 100, LOG MESSAGE, DESCRIPTION

Page 235 highlights

Chapter 19 The Logs Screens Table 98 TCP Reset Logs (continued) LOG MESSAGE DESCRIPTION Firewall session time out, sent TCP RST The router sent a TCP reset packet when a dynamic firewall session timed out. The default timeout values are as follows: ICMP idle timeout: 3 minutes UDP idle timeout: 3 minutes TCP connection (three way handshaking) timeout: 270 seconds TCP FIN-wait timeout: 2 MSL (Maximum Segment Lifetime set in the TCP header). TCP idle (established) timeout (s): 150 minutes Exceed MAX incomplete, sent TCP RST Access block, sent TCP RST TCP reset timeout: 10 seconds The router sent a TCP reset packet when the number of incomplete connections (TCP and UDP) exceeded the user-configured threshold. (Incomplete count is for all TCP and UDP connections through the firewall.)Note: When the number of incomplete connections (TCP + UDP) > "Maximum Incomplete High", the router sends TCP RST packets for TCP connections and destroys TOS (firewall dynamic sessions) until incomplete connections < "Maximum Incomplete Low". The router sends a TCP RST packet and generates this log if you turn on the firewall TCP reset mechanism (via CI command: sys firewall tcprst). Table 99 Packet Filter Logs LOG MESSAGE [ TCP | UDP | ICMP | IGMP | Generic ] packet filter matched (set: %d, rule: %d) DESCRIPTION Attempted access matched a configured filter rule (denoted by its set and rule number) and was blocked or forwarded according to the rule. For type and code details, see Table 106 on page 239. Table 100 ICMP Logs LOG MESSAGE DESCRIPTION Firewall default policy: ICMP , , ICMP access matched the default policy and was blocked or forwarded according to the user's setting. Firewall rule [NOT] match: ICMP , , , ICMP access matched (or didn't match) a firewall rule (denoted by its number) and was blocked or forwarded according to the rule. Triangle route packet forwarded: The firewall allowed a triangle route session to ICMP pass through. User's Guide 235

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Chapter 19 The Logs Screens
User’s Guide
235
F
or type and code details, see
Table 106 on page 239
.
Firewall session time
out, sent TCP RST
The router sent a TCP reset packet when a dynamic
firewall session timed out.
The default timeout values are as follows:
ICMP idle timeout: 3 minutes
UDP idle timeout:
3 minutes
TCP connection (three way handshaking) timeout: 270
seconds
TCP FIN-wait timeout: 2 MSL (Maximum Segment
Lifetime set in the TCP header).
TCP idle (established) timeout (s): 150 minutes
TCP reset timeout: 10 seconds
Exceed MAX incomplete,
sent TCP RST
The router sent a TCP reset packet when the number of
incomplete connections (TCP and UDP) exceeded the
user-configured threshold. (Incomplete count is for all
TCP and UDP connections through the firewall.)Note:
When the number of incomplete connections (TCP + UDP)
> “Maximum Incomplete High”, the router sends TCP RST
packets for TCP connections and destroys TOS (firewall
dynamic sessions) until incomplete connections <
“Maximum Incomplete Low”.
Access block, sent TCP
RST
The router sends a TCP RST packet and generates this log
if you turn on the firewall TCP reset mechanism (via CI
command:
sys firewall tcprst
).
Table 99
Packet Filter Logs
LOG MESSAGE
DESCRIPTION
[ TCP | UDP | ICMP | IGMP |
Generic ] packet filter
matched (set: %d, rule: %d)
Attempted access matched a configured filter rule
(denoted by its set and rule number) and was blocked
or forwarded according to the rule.
Table 100
ICMP Logs
LOG MESSAGE
DESCRIPTION
Firewall default policy: ICMP
<Packet Direction>, <type:%d>,
<code:%d>
ICMP access matched the default policy and was
blocked or forwarded according to the user's
setting.
Firewall rule [NOT] match: ICMP
<Packet Direction>, <rule:%d>,
<type:%d>, <code:%d>
ICMP access matched (or didn’t match) a firewall
rule (denoted by its number) and was blocked or
forwarded according to the rule.
Triangle route packet forwarded:
ICMP
The firewall allowed a triangle route session to
pass through.
Table 98
TCP Reset Logs (continued)
LOG MESSAGE
DESCRIPTION