ZyXEL Communications P-660HW-T v2 - Manual (Page 232)

P-660HW-T v2 User’s Guide
232 Chapter 18 Logs
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 93 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 94 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. For type and
code details, see Table 106 on page 242 .
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. For type and code details, see
Table 106 on page 242 .
Triangle route packet forwarded:
ICMP The firewall allowed a triangle route session to pass
through.
Packet without a NAT table entry
blocked: ICMP The router blocked a packet that didn’t have a
corresponding NAT table entry.
Unsupported/out-of-order ICMP:
ICMP The firewall does not support this kind of ICMP packets or
the ICMP packets are out of order.
Router reply ICMP packet: ICMP The router sent an ICMP reply packet to the sender.
Table 92 TCP Reset Logs (continued)
LOG MESSAGE DESCRIPTION