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ProSecure Unified Threat Management (UTM) Appliance Reference Manual
System Logs and Error Messages C-11
v1.0, January 2010
Message 2007 Oct 1 00:44:17 [UTM] [kernel]
[INVALID][BAD_CHECKSUM]DROP] SRC=192.168.20.10
DST=192.168.20.2 PROTO=TCP SPT=23 DPT=54899
Explanation Bad checksum.
Recommended Action None
Message 2007 Oct 1 00:44:17 [UTM] [kernel]
[INVALID][BAD_HW_CHECKSUM][DROP] SRC=192.168.20.10
DST=192.168.20.2 PROTO=ICMP TYPE=3 CODE=0
Explanation Bad hardware checksum for ICMP packets.
Recommended Action None
Message [INVALID][MALFORMED_PACKET][DROP] SRC=192.168.20.10
DST=192.168.20.2 PROTO=TCP SPT=23 DPT=54899
Explanation Malformed packet.
Recommended Action None
Message 2007 Oct 1 00:44:17 [UTM] [kernel]
[INVALID][SHORT_PACKET][DROP] SRC=192.168.20.10
DST=192.168.20.2 PROTO=TCP SPT=23 DPT=54899
Explanation Short packet.
Recommended Action None
Message [INVALID][ INVALID_STATE][DROP] SRC=192.168.20.10
DST=192.168.20.2 PROTO=TCP SPT=23 DPT=54899
Explanation Packet with invalid state.
Recommended Action None
Message 2007 Oct 1 00:44:17 [UTM] [kernel]
[INVALID][REOPEN_CLOSE_CONN][DROP] SRC=192.168.20.10
DST=192.168.20.2 PROTO=TCP SPT=23 DPT=54899
Explanation Attempt to re-open/close session.
Recommended Action None
Message 2007 Oct 1 00:44:17 [UTM] [kernel]
[INVALID][OUT_OF_WINDOW][DROP] SRC=192.168.20.10
DST=192.168.20.2 PROTO=TCP SPT=23 DPT=54899
Explanation Packet not in TCP window.
Recommended Action None
Message 2007 Oct 1 00:44:17 [UTM] [kernel]
[INVALID][ERR_HELPER_ROUTINE][DROP] SRC=192.168.20.10
DST=192.168.20.2 PROTO=TCP SPT=23 DPT=54899
Table C-17. System Logs: Invalid Packets (continued)