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SonicOS Enhanced 4.0 Administrator Guide
The following are SYN Flood statistics.
Column Description
Max Incomplete
WAN
Connections /
sec
The maximum number of pending embryonic half-open connections recorded
since the firewall has been up (or since the last time the TCP statistics were
cleared).
Average
Incomplete WAN
Connections /
sec
The average number of pending embryonic half-open connections, based on
the total number of samples since bootup (or the last TCP statistics reset).
SYN Floods in
Progress
The number of individual forwarding devices that are currently exceeding
either SYN Flood threshold.
RST Floods in
Progress
The number of individual forwarding devices that are currently exceeding the
SYN/RST/FIN flood blacklisting threshold.
FIN Floods in
Progress
The number of individual forwarding devices that are currently exceeding the
SYN/RST/FIN flood blacklisting threshold.
Total SYN, RST,
or FIN Floods
Detected
The total number of events in which a forwarding device has exceeded the
lower of either the SYN attack threshold or the SYN/RST/FIN flood blacklisting
threshold.
TCP Connection
SYN-Proxy State
(WAN only)
Indicates whether or not Proxy-Mode is currently on the WAN interfaces.
Current SYN-
Blacklisted
Machines
The number of devices currently on the SYN blacklist.
Current RST-
Blacklisted
Machines
The number of devices currently on the RST blacklist.
Current FIN-
Blacklisted
Machines
The number of devices currently on the FIN blacklist.
Total SYN-
Blacklisting
Events
The total number of instances any device has been placed on the SYN
blacklist.
Total RST-
Blacklisting
Events
The total number of instances any device has been placed on the RST
blacklist.
Total FIN-
Blacklisting
Events
The total number of instances any device has been placed on the FIN
blacklist.
Total SYN
Blacklist Packets
Rejected
The total number of packets dropped because of the SYN blacklist.
Total RST
Blacklist Packets
Rejected
The total number of packets dropped because of the RST blacklist.