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Cisco Bug: CSCtc43833 - IOS(12.4.21)%FW-4-HOST_TCP_ALERT_ON"- Incorrect tcp half-open conn count

Last Modified

Feb 02, 2017

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)


With ip inspection enabled, seeing syslog-
 %FW-4-HOST_TCP_ALERT_ON: Max tcp half-open connections (4000) exceeded for host x.x.x.x

when "sh ip insp stat reset" command shows half-open session count to be much less.


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