er3208g3路由器wan口设置
作者：色铁
一直想找个万兆的硬路由，找了很久大部分价格都是大几千甚至上万，最后找到了ER2260T，2个万兆SFP+和4个千兆电口，825元包邮，等到了之后，上电测试没什么问题，当时就拆了，短接触点接TTL刷了Openwrt，拆机和刷机过程没拍照，拆解已经有很多别人的贴子了，大家可以搜一下。
外观展示
由于原来的铁壳子太大了，所以换了个亚克力壳子缩小体积。
原来是内置电源，现在改成了12V DC输入，可以跟其他的设备一起集中供电。
上网设置
OP系统里两个SFP口的顺序是反的，左边是eth5右边是eth4，eth5插ST8010-G1 自动协商为2.5Gbps，绿头是SC/APC光纤接头，为电信千兆宽带光纤，eth4插的是brocade 万兆双纤模块。
br-lan桥接了 eth1-eth5，这里把插PON Stick的口也桥接了，这样可以直接通过ip访问PON Stick的的管理页面。
杭州电信只需要设置LIOD就行了，上网VLAN 41，IPTV VLAN 43组播4000，由于有多个宽带同时使用，所以这里做了VLAN转换。
组播VLAN Tagged填4000:1043,就是把下行组播的VLAN转换成了1041
VLAN转换，41:1041 就是把VLAN41转到内网的VLAN1041，43:1043就是把IPTV的VLAN转换成内网VLAN1043
这里IPTV和组播都转换成了VLAN 1043，这样的好处就是如果接盒子，盒子的网口直接Untagged 1043就可以单播组播一起桥接到指定网口了。
新建拨号连接选择PPPoE，输入账号密码。
物理设置选择自定义：eth5.1041 ,PON Stick插在了eth5，上面已经把上网vlan转换成了1041。
这样就可以同时上网并且访问PON Stick的管理界面了。
由于是硬路由，转发走NSS，不过CPU，所以CPU无任何压力，这就是软路由和硬路由的本质区别。
软路由转发要靠CPU处理，同时其他程序也需要CPU处理，CPU高负载的情况必定会影响转发性能，硬路由则不存在此问题。
硬路由在跑了很多自己安装的程序的，高负载的时候也不会影响转发性能。
在千兆跑满的情况，路由器功耗只有5.4W，并且还包括了PON Stick的功耗！
IPTV设置（场景1直接接IPTV机顶盒看电视）
创建新接口，命名为iptvport，接口协议：不配置协议，勾选在多个接口上创建桥接，包括以下接口：eth0和自定义接口eth5.1043，保存应用。
因为IPTV的VLAN桥接到了eth0，所以盒子直接接到eth0，也就是最左边的口
盒子上电就可以用了
直播电视也没有问题。
IPTV设置（场景2路由器代理IPTV，手机PC看电视）
因为我们这边IPTV是IPOE方式接入，所以要先抓包。
在ER2260T的软件包管理中找到tcpdump安装完成后进入ssh，输入命令:
tcpdump -i br-iptvport -c 10 -s 0 -w /tmp/ipoe.pcap
然后打开IPTV盒子电源
然后通过ftp把抓到的ipoe.pcap拷贝出来，用Wireshark打开ipoe.pcap
找到 DHCP Request请求，就是上图第一个红圈里的，点击该条目，中间找到Option:(60),展开，然后点击Vendor class identifier。下方蓝色十六进制就是我们要的东西。
在Vendor class identifier上点右键，复制-> as a Hex Stream,然后粘贴到文本文件。
抓包结束。
接下来先修改PON Stick VLAN配置
组播VLAN Tagged 改为:4000:4002,把组播转换成4002，因为我内网已经有4000和4001做别的了。
删除之前建立的iptvport，新建iptv接口
协议选择DHCP客户端，自定义接口eth5.1043
iptv接口的mac地址设置成IPTV盒子的MAC地址,盒子标签上有，上面抓包也能看到。
进入ER2260T的SSH， vi /etc/config/network 修改 iptv口的配置，增加
option sendopts '0x3c:******'
****** 就是上面抓包获取到的内容。
然后保存，点击iptv口的连接：
IPTV口已经获取到IP
新建接口iptvlan
iptvlan口设置 静态ip192.168.43.1,打开dhcp
桥接eth0和eth5.4002，eth0用于插iptv盒子
dhcp服务器高级设置，DHCP选项:6,202.101.172.47,202.101.172.35
防火墙设置：
IPTVWAN覆盖网络：iptv,入站丢弃，出站接受，转发接受，IP动态伪装，MSS钳制
IPTVLAN覆盖网络:iptvlan,入站接受，出站接受，转发接受
允许转发到目标区域：IPTVWAN
最后MWAN设置分流
通过MWAN设置192.168.1.0/24 上网走PPPOE连接，192.168.43.0/24 IPTV走iptv连接
设置UDPXY
绑定接口br-lan,源接口br-iptvlan
VLC 打开网络串流 http://192.168.1.2:4022/udp/233.50.201.100:5140
局域网已经可以看直播
IPTV盒子接eth0
盒子网络连接由IPOE改为DHCP
到此IPTV实现内网代理+盒子同时收看
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