Host offline while it's not

Troubleshooting
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3

Hello Andreas,

Thank you for your reply.
I have tested as you described. Whatever parameter I try for check_icmp, I get 100% packet loss. The default Debian ping command however has no packet loss. Do you have any additional advise?

[user]@[host]:/opt/omd/versions/2.3.0p20.cre/lib/nagios/plugins$ ./check_icmp [target]
CRITICAL - [target]: rta nan, lost 100%|rta=U;;;; rtmax=U;;;; rtmin=U;;;; pl=100%;40;80;0;100

[user]@[host]:/opt/omd/versions/2.3.0p20.cre/lib/nagios/plugins$ ping [target]
PING [target] ([target IP address]) 56(84) bytes of data.
64 bytes from [target IP address] (target IP address]): icmp_seq=1 ttl=118 time=7.03 ms
64 bytes from target IP address] (target IP address]: icmp_seq=2 ttl=118 time=6.92 ms
64 bytes from target IP address] (target IP address]): icmp_seq=3 ttl=118 time=6.96 ms

Thanks in advance for your advise.

Nico Bos