I maybe expecting something that is not designed, but I was hoping to exclude checking of my loopback interface #snmpwalk -v1 -c public localhost ifType IF-MIB::ifType.1 = INTEGER: softwareLoopback(24) IF-MIB::ifType.2 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.3 = INTEGER: ethernetCsmacd(6) # ./check_ifoperstatus -H localhost -T 6 OK: Interface eth0 (index 2) is up. Should I not be seeing two interfaces in the check_ifoperstatus output ? I have check_ifoperstatus v1.4.14 (nagios-plugins 1.4.14) on AS4 U6. This was mistakenly originally posted this to the nagios-users list - apologies Regards Nigel Nigel Leach Grid Engineer | Front Office Risk Systems | BNP Paribas <pre> ___________________________________________________________ This communication is confidential, may be privileged and is meant only for the intended recipient. If you are not the intended recipient, please notify the sender by reply and delete the message from your system. Any unauthorised dissemination, distribution or copying hereof is prohibited. BNP Paribas Trust Corporation UK Limited, BNP Paribas UK Limited, BNP Paribas Commodity Futures Limited, BNP Paribas Asset Management UK Limited and Investment Fund Services Limited are authorised and regulated by the Financial Services Authority. BNP Paribas London Branch and BNP Paribas Wealth Management London Branch are authorised by the CECEI and supervised by the Commission Bancaire. BNP Paribas London Branch is authorised and subject to limited regulation by the Financial Services Authority. Details about the extent of our authorisation and regulation by the Financial Services Authority are available from us on request. BNP Paribas is also a member of the London Stock Exchange. BNP Paribas Wealth Management London Branch is subject to limited regulation by the Financial Services Authority. Details about the extent of our authorisation and regulation by the Financial Services Authority are available from us on request. BNP Paribas Securities Services London Branch is authorised by the CECEI and supervised by the AMF, and subject to limited regulation by the Financial Services Authority. Details on the extent of our regulation by the Financial Services Authority are available from us on request. BNP Paribas Securities Services is also a member of the London Stock Exchange. BNP Paribas Trust Corporation UK Limited is registered in England and Wales (registered no. 4042668) at registered office 55 Moorgate, London EC2R 6PA. BNP Paribas UK Limited is registered in England and Wales (registered no. 1488108) at registered office 10 Harewood Avenue, London NW1 6AA. BNP Paribas Commodity Futures Limited is registered in England and Wales (registered no. 2391477) at registered office 10 Harewood Avenue, London NW1 6AA. BNP Paribas Asset Management UK Limited is registered in England and Wales (registered no. 2474627) at registered office 10 Harewood Avenue, London NW1 6AA. Investment Fund Services Limited is registered in England and Wales (registered no. 6110770) at registered office 55 Moorgate, London EC2R 6PA. BNP Paribas London Branch is registered in England and Wales (registered no. FC13447) at registered office 10 Harewood Avenue, London NW1 6AA. BNP Paribas Wealth Management London Branch is registered in England and Wales (registered no. FC023926) at registered office 10 Harewood Avenue, London NW1 6AA. BNP Paribas Securities Services London Branch is registered in England and Wales (registered no. BR006393) at registered office 55 Moorgate, London, EC2R 6PA. BNP Paribas Lease Group Plc is registered in England and Wales (registered no. 2341989) at registered office Northern Cross, Basing View, Basingstoke, Hampshire RG21 4HL. ____________________________________________________________ </pre>