Dear List I am using nagios 3.0 in Ubuntu 7.10 .To monitor a router with snmp command i am using the following command define service{ use generic-service ; Inherit values from a template host_name mumbai-gw1 service_description Port 1 Link Status check_command check_snmp!-C public -o ifOperStatus.1,ifAdminStatus.1 -r 1 -m RFC1213-MIB } The port is up but still it returns Critical state rather than showing OK state .If i eliminate the -r 1 then it only gives me the info about port status. But i need to get notified when port admin status is not equal to operational status. So is there any way out for this problem. <img src=cid:_1_072F8368072F8140002BD20465257450> The information contained in this e-mail message is intended only for the use of the individual or entity to which it is addressed. If you are not the intended recipient, you should return it to the sender immediately. Please note that while we scan all e-mails for viruses we cannot guarantee that any e-mail is virus-free and accept no liability for any damage caused by any virus transmitted by this email.