snmp 发送类型ASN_OBJECT_ID
参考链接: http://blog.csdn.net/yin138/article/details/50388878
const oid enterprise_oid[] = {1,3,6,1,4,1,1000,4,1,1}; int ret = snmp_set_var_typed_value(requests->requestvb, ASN_OBJECT_ID, enterprise_oid, sizeof(enterprise_oid));
enterprise_id的数组大小要大于6位,否则用snmp get 时获取的是 enterprises