Sorry, I misstyped:
[/usr/local/oracle/product/8.1.6/bin]
$ lsnrctl dbsnmp_stop

LSNRCTL for DEC OSF/1 AXP: Version 8.1.6.0.0 - Production on 05-DEC-2000 20:58:26

(c) Copyright 1998, 1999, Oracle Corporation. All rights reserved.


[Integration_Lab:insc01db1:oracle]
[/usr/local/oracle/product/8.1.6/bin]
$ lsnrctl dbsnmp_start

LSNRCTL for DEC OSF/1 AXP: Version 8.1.6.0.0 - Production on 05-DEC-2000 20:58:30

(c) Copyright 1998, 1999, Oracle Corporation. All rights reserved.


[Integration_Lab:insc01db1:oracle]
[/usr/local/oracle/product/8.1.6/bin]
$

And mhaller is correct - it should be owned by oracle not root. Oracle will not be able to execute what is owned by root. Looks like you guys messed it up when installed oracle software because group oinstall is used only for installation. Ask your sysadmin to change owner and group - owner: oracle, group - dba.