Werk #8411: New option for ignoring TCP RST packets as "host up" indication
| Component | The Checkmk Micro Core | ||
| Title | New option for ignoring TCP RST packets as "host up" indication | ||
| Date | Feb 16, 2016 | ||
| Level | Trivial Change | ||
| Class | New Feature | ||
| Compatibility | Compatible - no manual interaction needed | ||
| Checkmk versions & editions |
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Some routers/firewalls send a TCP RST for a host which is known to be down, using the source IP of the host in question. Enabling the new "Ignore TCP Reset Packets" flag under "Global Settings/Monitoring Core/Tuning of Smart PING" prevents Smart PING from considering such a host as being up.