ZyXEL Communications Prestige 662HW Series, User Manual

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Prestige 662HW Series User’s Guide
H-4 Log Descriptions
Chart H-5 Access Logs
LOG MESSAGE DESCRIPTION
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 H-6 TCP Reset Logs
LOG MESSAGE DESCRIPTION
Firewall sent TCP
reset packets
The firewall sent out TCP reset packets.
Chart H-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
4 A packet that needed fragmentation was dropped because it was set to Don't
Fragment (DF)
5 Source route failed
4 Source Quench
0 A gateway may discard internet datagrams if it does not have the buffer space
needed to queue the datagrams for output to the next network on the route to
the destination network.
5 Redirect
0 Redirect datagrams for the Network
1 Redirect datagrams for the Host
2 Redirect datagrams for the Type of Service and Network
3 Redirect datagrams for the Type of Service and Host
8 Echo
0 Echo message
11 Time Exceeded
0 Time to live exceeded in transit
1 Fragment reassembly time exceeded