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 |
| Checkmk Edition | Checkmk Enterprise (CEE) |
| Checkmk Version | 1.4.0i1 |
| Level | Trivial Change |
| Class | New Feature |
| Compatibility | Compatible - no manual interaction needed |
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.
