ZyXEL Communications Prestige 652, User Manual, Page: 503 / 521

Prestige 652 Series User’s Guide
Log Descriptions J-5
Chart J-5 Access Logs
LOG MESSAGE DESCRIPTION
Out of order TCP
handshake packet
blocked (Protocol)
The router blocked a TCP handshake packet that came out of the
proper order
Unsupported/out-of-
order ICMP (Protocol)
The Prestige generates this log after it drops an ICMP packet due to
one of the following two reasons:
1. The Prestige does not support the ICMP packet's protocol.
2. The ICMP packet is an echo reply for which there was no
corresponding echo request.
Router reply ICMP
packet
The router sent an ICMP response packet. This packet automatically
bypasses the firewall.
Remote access denied The router blocked a remote access attempt.
Chart J-6 TCP Reset Logs
LOG MESSAGE DESCRIPTION
Firewall sent TCP
reset packets
The firewall sent out TCP reset packets.
Chart J-7 ICMP Notes
TYPE CODE DESCRIPTION
0 Echo Reply
0 Echo reply message
3 Destination Unreachable
0 Net unreachable
1 Host unreachable
2 Protocol unreachable
3 Port unreachable