Compatible Systems 5.4 - Manual (Page 151)

Chapter 8 - IntraGuard Firewall Configuration 145
ICMP Resets
ICMPResets messages are created by the firewall whenever a non-TCP
session (i.e. UDP or ICMP session) is reset. The default is Notice.
TCP SYN
TCP SYN messages are created by the firewall whenever a TCP connection
cannot be completed because it was timed out. The default is Critical.
TCP FIN
TCP FIN messages are created by the firewall whenever a TCP connection
cannot be properly torn down and is instead timed out. The default is Critical.
Redirects
Redirects messages are created by devices on the network when they receive
a misdirected packet. These messages sometimes indicate route instability or
the presence of an incorrectly configured IP host, but they do not necessarily
indicate a problem on the network. The default is Critical.
General
General messages are created when errors occur within the IntraGuard. This
might include running out of memory or internal state errors, and should be
infrequent. The default is Critical.