# 开启DMZ
双层网络是指您的设备连接路由器，路由器连接光猫进行上网的网络结构。此网络结构下，您必须开启光猫到路由器的DMZ，路由器开启UPnP，才能最大化的利用带宽资源，以下用双层网络位示例演示如何设置DMZ。 如果您的网络下只挂一台设备，直接开启DMZ指向此设备，收益也将有极大提升。
## 1. 用连接此网络的设备，浏览器输入终端配置地址打开，终端配置地址在光猫背面
## 2. 采用超级账户登录[](https://help.niulinkcloud.com/smallbox/smallnethelp/opendmz.html#_2-%E9%87%87%E7%94%A8%E8%B6%85%E7%BA%A7%E8%B4%A6%E6%88%B7%E7%99%BB%E5%BD%95)
输入超级账户密码登录光猫设置页，注意，此处输入的是超级密码，不是光猫后面的账号密码， 每个运营商和每个地方都不同，下面列出运营商通用账号
| 运营商 | 账号 | 密码 |
| --- | ------------ | --------- |
| 电信 | telecomadmin | nE7jA%5m |
| 联通 | CUAdmin | CUAdmin |
| 移动 | CMCCAdmin | aDm8H%MdA |
如果通用账号无法登录，需要您自行百度查询或联系您的宽带运营商获取。 **建议直接拨打宽带运营商客服电话查询（PS：很简单，两分钟即可拿到）**
下面以中国移动为例，其他运营商设置基本一致。
## 3. 选择应用中高级NAT配置的DMZ配置，输入路由器的WAN口IP即可
恭喜您，操作完成！
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