Error with client nrpe-v2.12 from nrpe-v2.15 server

[mayadav]

I am running old nrpe client NRPE v2.12 but my server is now NRPE v2.15. Can you please guide me how my checks should work with old client.

# ./check_nrpe -H localhost
NRPE v2.15
[Lab root @ icl-nagios-vm01 /usr/local/nagios/libexec]
# ./check_nrpe -H 10.40.57.169
NRPE v2.12

[Lab root @ icl-nagios-vm01 /usr/local/nagios/libexec]
# ./check_nrpe -H 10.40.57.169 -c check_load -a '-w 15,10,5 -c 30,20,10'
Warning threshold must be float or float triplet!

Thanks,
Mahendra

[hsmith]

Can we see the nrpe.cfg from the server you're trying to execute this check against?