Preface: TCP sequence out-of-rangeLogo -Internet Security Systems

TCP sequence out-of-range

advICE :Intrusions : 2000304
 FAQ
Oh my gosh, I'm being HACKED!!!
How do I report the hacker to my ISP?
I'm seeing lots of attacks, is this normal?
Summary

Possible intrusion

Details

This may indicate an unsuccessful attempt to hijack a TCP connection. A TCP sequence number is out of the expected range.

 more information
CERT: CA-95.01.IP.spoofing.attacks.and.hijacked.terminal.connections  
 

 parametric information
dstportThe destination port of the TCP frame.
srcportThe source port of the TCP frame.
seqThe sequence number seen.
expectedThe expected sequence number.

 
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