作者：Krupp
This post is part of our special coverage Egypt Elections 2011.
“省公司最新规定若宽带帐号需要修改为“公网双栈“，则需要将ITV整改为标准组网拨号方式；核实此用户ITV被省公司标识为：非标准组网，所以无法修改为公网属性”
“The latest rule of the provincial company is that if a broadband account is to be modified to be a “public network double-store”, it will be necessary to convert the whole ITV into a standard network dial-up; verify that the user ITV is marked by the provincial company as a non-standard network and therefore cannot be modified as a public network attribute”
众所周知，9月左右，广州电信乃至广东电信均不同程度出现公网业务被恢复成内网，ITV业务+公网双栈出现冲突。广电+电信一个升级把以前可以直接在lan口用ITV盒子变成历史
It is well known that, in September or so, there were different levels of public network operations in Guangzhou and even in Guangdong, and there was a clash between the ITV operation and the two-site public network. An upgrade of the ITV system made it possible to use the ITV box directly at the Lan mouth history.
本文为如何保住自己的公网IP+让家人用ITV盒子继续看电视的亿点小挣扎
It's about how to keep your Internet IP+ and the billion-dollar struggle to keep the family watching TV with an ITV box.
首先上网络拓扑
Let's go to the Internet.
1.光猫为默认配置（仅把上网业务修改为桥接）
1. Photocats as default configuration (changed access to bridge only)
把光猫lan2口（ITV口）接入软路由lan口，IPV盒子使用pppoe拨号，IPV盒子拨号成功√
IPV box dials by ppoe, IPV box dials successfully.
2.修改vlan
2. Modification of vlan
光猫lan2口绑定vlan45，接入软路由lan口，1楼ap打开路由器IPTV模式，选定目标端口并输入vlan号，IPV盒子拨号成功√
Lightcat lan2 strapped to vlan45, connected to soft router lan, 1st floor ap opening router IPTV mode, selected target port and entered Vlan, IPV box dialled successfully
3.软路由设置vlan
3. Soft route settingsvlan
光猫lan2口绑定vlan45，接入软路由lan口（eth2.45），lan口下任意端口IPV盒子拨号成功√
Lightcat lan 2 strapped to vlan45, access to soft route lan port (eth2.45), and IPV box dialed successfully at any port below the lan port.
（1-3为尝试的解决方案，内网流量和ITV业务木有完美隔离，仅做简单介绍）
(1-3 as an attempted solution, well-segregated inner network traffic and ITV business logs, with brief introductions only)
最终方案
Final options
1.光猫上网业务绑定LAN1（可以改为桥接），接入eth1，分离上网业务
1. Lightcat access operations are tied to LAN1 (which can be converted to bridge), access to eth1 and separate access operations
[此处不同于大多数帖子，我知道看过了n个论坛帖子的大佬们有1000个问号，总结处有解答]
Unlike most of the posts here, I know the big guys who read the n forum posts have 1,000 question marks and answers in the wrap-up section.
2.IPV业务取消端口绑定，把光猫LAN2的勾勾去掉
2. IPV operations are off port binding and offline the photocat LAN2.
3.光猫LAN2口设置vlan绑定
Photocat LAN2 setup vlan tied
4.软路由新增接口，配置如图
4. Soft circuits with additional interfaces and configurations like diagrams
5.目标路由器配置ITV端口号和LAN口号
Target router configuration ITV port and LAN slogan
总结
Summary
广州电信的上网业务比较特殊，是untag（试过vlan41，以前也是41的，但是修改成41就断网了，改成untag才恢复网络），internet业务自身木有vlan，只能端口绑定，不好做vlan绑定，所以光猫lan1连接软路由eth1，分离上网业务。
Guangzhou Telecom's access to the Internet is more unusual: it is ttag (which tried vlan 41, which used to be 41, but changed to tung only to restore the network), the Internet operation itself has vlan, which can only be tied to the port and cannot be tied to vlan, so luminous cat 1 connects soft circuits to eth1 and separates access to the Internet.
ITV业务设置光猫LAN2口 VLAN绑定，接入软路由eth2.45（vlan45）。
ITV operates with a light cat LAN2 VLAN tied up and access to soft circuits by eth 2.45 (vlan45).
ITV全链路=光猫lan2（vlan45）→软路由ITV口 eth2（vlan45）→软路由LAN口 eth0（vlan45）→目标路由器（vlan45）→ITV盒子（pppoe拨号）
ITV Full Link = Light Cat lan2(vlan45) — soft by ITV eth2(vlan45) — soft by LAN eth0 (vlan45) — Target router (vlan45) ITV box (pppoe dial)
完美把内网和ITV业务流量隔离。
It's the perfect way to separate the inside network from the ITV business flow.
也由于当初布线比较神奇，光猫和软路由在1楼弱电箱，交换机在2楼，1楼ap放在电视柜里才比较好看。空间局限比较大，不能用论坛里大佬们的方案，所以自己摸索出了一套可行的方案，解决了困扰数月的难题，希望能帮到诸位。
And because the wiring was amazing, the light cats and soft circuits were in a weak electrical box on the first floor, the switch was on the second floor, and the first floor ap was in a television cabinet. Space was more limited, and the big boys in the forum couldn't use their options, so they figured out a workable solution to the problems that had plagued you for months, hoping to help you out.
愿光腚再也不要闲来无事整个活
I hope you don't spend any more time with nothing to do.
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