- 通过无线/有线连接 HG260GS-U 光猫，浏览器打开 http://192.168.1.1 并使用
user 账号登录后，打开 http://192.168.1.1/backupsettings.conf 把配置文件下载回来，大约 50-60kb 的样子，先复制一份做后悔药；
- 打开配置文件
backupsettings.conf（据说最好不要用 Windows 记事本，可能会自动添加 BOM 头造成配置文件损坏的问题。原谅楼主用的是苹果本，没有亲自试过），搜索 Telnet，把 <Enable>FALSE</Enable> 修改为 <Enable>TRUE</Enable>：<Telnet>
<Enable>TRUE</Enable>
</Telnet>
- 浏览器打开 http://192.168.1.1/updatesettings.html 将改完的配置上传，光猫自动重启后，Telnet 功能已经开启；
- 用
telnet 命令连接光猫，输入用户名 admin 和密码 admin 登录进去：telnet 192.168.1.1
- 查看 sn 并保存下来，后面会用到：
get sn
- 打开 http://192.168.1.1 将状态——网络侧信息——WAN 口连接信息页面上各个端口的详细信息表格拍个照，后面需要我们手工设置到华为光猫里；
- 网线直连 HG8240 光猫，把电脑的有线连接 IP 修改为
192.168.100.2，子网掩码 255.255.255.0，网关 192.168.100.1；
- 打开 http://192.168.100.1 使用用户名
telecomadmin 和密码 admintelecom 登录进去；
- 在
LAN 设置里把 LAN1 到 LAN4 都选中，点应用；
- 设置 TR069：在
WAN 配置里点击新建，选中使能，服务选 TR069，类型选路由，IP 获取方式选 PPPoE，用户名和密码在第 1 步得到的配置文件里，密码是用 base64 加密的，随便搜个在线工具解密就好，VLAN ID 和 802.1 优先级，按第 6 步拍的照片里对应的数字填；
- 设置网络：在
WAN 配置里点击新建，选中使能，服务选 INTERNET，类型选桥接，桥接类型选 PPPoE 桥接，LAN 口绑定 LAN1 到 LAN3，VLAN ID 和 802.1 优先级，按第 6 步拍的照片里对应的数字填；
- 没有固话的纯占位设置：在
WAN 配置里点击新建，选中使能，服务选 VOIP，类型选路由，VLAN ID 和 802.1 优先级，按第 6 步拍的照片里对应的数字填；
- 设置 IPTV：在
WAN 配置里点击新建，选中使能，服务选 INTERNET，类型选桥接，桥接类型选 IP 桥接，IP 获取方式选 DHCP，多播 VLAN ID 一定要填，不然直播频道没法看，具体值也从第 1 步得到的配置文件里找，LAN 口绑定 LAN4，VLAN ID 和 802.1 优先级，按第 6 步拍的照片里对应的数字填；
- 用 telnet 命令连接光猫，输入用户名
root 和密码 admin 登录进去：telnet 192.168.100.1
- 设置 sn 为 HG260GS-U 的 sn：
set sn snid <刚才保存下来的sn，输入的时候不要带这里的尖括号>
- 把光纤连接到 HG8240 上，LAN1 口用网线连接到路由器的 WAN 口；
- 进入路由器设置 PPPoE 拨号，拨号成功后就可以上网了；
- IPTV 机顶盒用网线连接到 HG8240 的 LAN4 口，敲黑板，是光猫的 LAN4 口，不是路由器的 LAN4，别弄错了；
- 没了，网能上，IPTV 也能看了；
- 哦对了，在系统工具里记得保存配置到 Flash，不然光猫重启后配置丢光光；
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你好，看你的描述，感觉像是固件把命令禁用了？抱歉我手上没有8546v，没法测试也帮不了什么-_-
大神，我也是北京联通gpon，换已经破解华为界面的8546v，做到set sn snid这步了，提示command is not existed,我是telnet 连192.168.100.1,输入root和admin后，直接输的。先输su 之类试了试也不行，是没权限吗？请问下 应该怎么搞
我的8240就是淘宝几十块买的二手洋垃圾，战斗版成色，但用起来没什么问题。
哥们，我的情况跟你一样，北京联通刚给换了HG260GS-U，我也想买个华为的光猫，您的8240是哪里买的？我想买个8245H，但淘宝上基本是二手的，不知是否靠谱。打扰了