" " Click on "Add VPN Configuration." In the top bar, you will see that iOS has three available protocols: L2TP, PPTP, and IPSec. If your VPN is provided by an employer, then they will most likely inform you as to which protocol to use. If you are using your own hosted VPN, however, then be sure to use a form which is supported by your provider. This could be anything you want. For instance, if this is a work VPN, then you could describe it as "Work." If you plan to use this VPN for watching an out-of-country Netflix, then you could call it "Canadian Netflix." This information should have been given to you either by your VPN provider or your employer. This field refers to your username which you most likely created when purchasing your hosted VPN or was created for you by an employer. To turn this on, tap on the gray button. When it turns green, this feature is turned on. RSA SecureID comprises either a hardware or software mechanism which produces keys to verify a user over periods of time. Most likely, you will only have RSA SecurID in a professional setting.  To turn on RSA SecurID in IPSec, tap on the button for "Use Certificate" so it turns green. After choosing "RSA SecurID," click "Save." IPSec will also allow you to use CRYPTOCard, or any certificates in the raw formats .cer, .crt, .der, .p12, and .pfx. " Your password was most likely provided at the same time as your username. Consult with your employer or VPN provider if you do not have this information. A "secret" is used to further authenticate your account. Much like the "key" of an RSA Secure ID, the "secret" is typically a series of letters and numbers given to you by a provider or employer. If it has not been provided to you then you either may not need to enter anything in that field or you may need to contact your provider or employer in order to obtain the secret. Again, this would be given to you, so if your employer or provider have shared this information with you then enter it in this field. If they haven't, then, most likely, you may...

How would you rephrase that briefly using Chinese?
单击“设置”，然后选择“常规”选项。 下拉到菜单底端，选择“VPN”选项。 选择连接协议。 输入数据描述。 输入你的服务器信息。 输入“账号”。 打开“双重认证”（如果你选择的是这种认证方式），点击灰色按钮即可。 输入密码。 如果你有共享密钥，请输入相关信息。 必要情况下IPSec连接需要输入“组名”。 选择是否需要通过VPN“收发所有信息”。 单击顶端的“保存”选项，保存你的设置。