https://bugzilla.redhat.com/show_bug.cgi?id=243536 --- net-snmp-5.4/agent/mibgroup/agent/extend.c.orig 2006-10-18 21:07:35.000000000 +0200 +++ net-snmp-5.4/agent/mibgroup/agent/extend.c 2007-06-27 14:30:08.000000000 +0200 @@ -448,6 +448,9 @@ extension->command = strdup( exec_command ); if (cptr) extension->args = strdup( cptr ); + } else { + snmp_log(LOG_ERR, "Duplicate MIBOID '%s' detected in exec statement, only the first one will be used.\n", exec_name); + return; } #ifndef USING_UCD_SNMP_EXTENSIBLE_MODULE