Observium和SNMP参数

我在Ubuntu 14.04 LTS服务器上安装了observium。
现在，我正在试图添加一个Windows 7实例设备到天文台。
但是，当我尝试添加设备时出现以下消息：

root@observium:/opt/observium# ./add_device.php debian public Observium CE 0.14.11.6000 Add Device(s) Try to add debian: Trying v2c community public ... No reply on community public using v2c. Could not reach debian with given SNMP parameters using v2c. Trying v1 community public ... No reply on community public using v1. Could not reach debian with given SNMP parameters using v1. Devices skipped: 1. USAGE: add_device.php <hostname> [community] [v1|v2c] [port] [udp|udp6|tcp|tcp6] add_device.php <hostname> [any|nanp|anp|ap] [v3] [user] [password] [enckey] [md5|sha] [aes|des] [port] [udp|udp6|tcp|tcp6] add_device.php <filename> EXAMPLE: SNMPv1/2c: add_device.php <hostname> [community] [v1|v2c] [port] [udp|udp6|tcp|tcp6] SNMPv3 : Defaults : add_device.php <hostname> any v3 [user] [port] [udp|udp6|tcp|tcp6] No Auth, No Priv : add_device.php <hostname> nanp v3 [user] [port] [udp|udp6|tcp|tcp6] Auth, No Priv : add_device.php <hostname> anp v3 <user> <password> [md5|sha] [port] [udp|udp6|tcp|tcp6] Auth, Priv : add_device.php <hostname> ap v3 <user> <password> <enckey> [md5|sha] [aes|des] [port] [udp|udp6|tcp|tcp6] FILE : add_device.php <filename> ADD FROM FILE: To add multiple devices, create a file in which each line contains one device with or without options. Format for device options, the same as specified in USAGE. 

我在Windows 7上启用了snmp服务，设备之间相互ping通，计算机名称被添加到observium上的/ etc / hosts中，但设备无法添加到observium中。
从上面的消息，我不明白是什么问题，因为我没有看到任何selectconfigurationWindows 7除了社区的snmp参数。