上海电信无法获取 ipv6，原生拨号或桥接都不行

[hackroad]

前景：
家里使用上海电信从 08 年至今，从最初的 30Mbps 套餐到目前 399 （实际 199 ）套餐 2Gbps 下行、300Mbps 上行，每月 450G 5G 流量。
光猫是中兴 G7615V2 ，桥接模式，路由设备使用畅网 P5-N100 ，PVE 虚了 ros ，4 网卡直通给 ros 。
前两天出现公网 ip 突然被回收的情况，10000 号投诉后装维给重新申请了公网 ip
详情 --> https://v2ex.com/t/1124170

日常使用场景：
家里正常上网需求，在公司使用畅网 N100 开发版

全程 WG 回家上网，家里 ROS 默认上海电信、香港、新加坡、日本多出口

问题：
最近公司同事提了个测试需求，希望有 ipv6 出口，但公司目前只有 ipv4 ，这个小需求也懒得让同事去推动公司增加 ipv6 了。于是开始尝试在 ROS 中打开 ipv6 ，公司测试 ipv6 就接入 N100 开发版 wg 回家。

经过半天的折腾，查了整个互联网 ROS 开启 ipv6 的资料，ipv6 dhcp 始终显示 Searching 。
1：ros 版本也升级至最新关闭了 Vaildate Server DUID 。
2：ROS AC NAME 尝试绑定 SH-SH-JDMYQJ-MSE-1.MAN.M6000/SH-SH-LN-VBASCP-1.NMAN.V6000 均无效。
3：怀疑过需要打开 PVE 支持 IPV6 ，无效。
4：找装维后台查过确认是 ipv4/ipv6 双栈（目前还抱有怀疑，原因后面说）
5：ipv6 防火墙允许 ipv6


ROS 相关 ipv6 日志如下


```2025-04-13 23:03:03 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:03 dhcp,debug,packet type: solicit
2025-04-13 23:03:03 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:03 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:03 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:03 dhcp,debug,packet t1: 0
2025-04-13 23:03:03 dhcp,debug,packet t2: 0
2025-04-13 23:03:03 dhcp,debug,packet id: 0xb
2025-04-13 23:03:03 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:03 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:03 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:03 dhcp,debug,packet t1: 0
2025-04-13 23:03:03 dhcp,debug,packet t2: 0
2025-04-13 23:03:03 dhcp,debug,packet id: 0xb
2025-04-13 23:03:03 dhcp,debug resending..
2025-04-13 23:03:03 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:03 dhcp,debug,packet type: solicit
2025-04-13 23:03:03 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:03 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:03 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:03 dhcp,debug,packet t1: 0
2025-04-13 23:03:03 dhcp,debug,packet t2: 0
2025-04-13 23:03:03 dhcp,debug,packet id: 0xb
2025-04-13 23:03:03 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:03 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:03 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:03 dhcp,debug,packet t1: 0
2025-04-13 23:03:03 dhcp,debug,packet t2: 0
2025-04-13 23:03:03 dhcp,debug,packet id: 0xb
2025-04-13 23:03:04 dhcp,debug resending..
2025-04-13 23:03:04 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:04 dhcp,debug,packet type: solicit
2025-04-13 23:03:04 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:04 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:04 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:04 dhcp,debug,packet t1: 0
2025-04-13 23:03:04 dhcp,debug,packet t2: 0
2025-04-13 23:03:04 dhcp,debug,packet id: 0xb
2025-04-13 23:03:04 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:04 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:04 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:04 dhcp,debug,packet t1: 0
2025-04-13 23:03:04 dhcp,debug,packet t2: 0
2025-04-13 23:03:04 dhcp,debug,packet id: 0xb
2025-04-13 23:03:04 dhcp,debug resending..
2025-04-13 23:03:04 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:04 dhcp,debug,packet type: solicit
2025-04-13 23:03:04 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:04 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:04 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:04 dhcp,debug,packet t1: 0
2025-04-13 23:03:04 dhcp,debug,packet t2: 0
2025-04-13 23:03:04 dhcp,debug,packet id: 0xb
2025-04-13 23:03:04 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:04 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:04 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:04 dhcp,debug,packet t1: 0
2025-04-13 23:03:04 dhcp,debug,packet t2: 0
2025-04-13 23:03:04 dhcp,debug,packet id: 0xb
2025-04-13 23:03:05 dhcp,debug resending..
2025-04-13 23:03:05 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:05 dhcp,debug,packet type: solicit
2025-04-13 23:03:05 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:05 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:05 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:05 dhcp,debug,packet t1: 0
2025-04-13 23:03:05 dhcp,debug,packet t2: 0
2025-04-13 23:03:05 dhcp,debug,packet id: 0xb
2025-04-13 23:03:05 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:05 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:05 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:05 dhcp,debug,packet t1: 0
2025-04-13 23:03:05 dhcp,debug,packet t2: 0
2025-04-13 23:03:05 dhcp,debug,packet id: 0xb
2025-04-13 23:03:05 dhcp,debug resending..
2025-04-13 23:03:05 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:05 dhcp,debug,packet type: solicit
2025-04-13 23:03:05 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:05 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:05 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:05 dhcp,debug,packet t1: 0
2025-04-13 23:03:05 dhcp,debug,packet t2: 0
2025-04-13 23:03:05 dhcp,debug,packet id: 0xb
2025-04-13 23:03:05 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:05 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:05 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:05 dhcp,debug,packet t1: 0
2025-04-13 23:03:05 dhcp,debug,packet t2: 0
2025-04-13 23:03:05 dhcp,debug,packet id: 0xb
2025-04-13 23:03:06 dhcp,debug resending..
2025-04-13 23:03:06 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:06 dhcp,debug,packet type: solicit
2025-04-13 23:03:06 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:06 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:06 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:06 dhcp,debug,packet t1: 0
2025-04-13 23:03:06 dhcp,debug,packet t2: 0
2025-04-13 23:03:06 dhcp,debug,packet id: 0xb
2025-04-13 23:03:06 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:06 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:06 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:06 dhcp,debug,packet t1: 0
2025-04-13 23:03:06 dhcp,debug,packet t2: 0
2025-04-13 23:03:06 dhcp,debug,packet id: 0xb
2025-04-13 23:03:06 dhcp,debug resending..
2025-04-13 23:03:06 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:06 dhcp,debug,packet type: solicit
2025-04-13 23:03:06 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:06 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:06 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:06 dhcp,debug,packet t1: 0
2025-04-13 23:03:06 dhcp,debug,packet t2: 0
2025-04-13 23:03:06 dhcp,debug,packet id: 0xb
2025-04-13 23:03:06 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:06 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:06 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:06 dhcp,debug,packet t1: 0
2025-04-13 23:03:06 dhcp,debug,packet t2: 0
2025-04-13 23:03:06 dhcp,debug,packet id: 0xb
2025-04-13 23:03:07 dhcp,debug resending..
2025-04-13 23:03:07 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:07 dhcp,debug,packet type: solicit
2025-04-13 23:03:07 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:07 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:07 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:07 dhcp,debug,packet t1: 0
2025-04-13 23:03:07 dhcp,debug,packet t2: 0
2025-04-13 23:03:07 dhcp,debug,packet id: 0xb
2025-04-13 23:03:07 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:07 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:07 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:07 dhcp,debug,packet t1: 0
2025-04-13 23:03:07 dhcp,debug,packet t2: 0
2025-04-13 23:03:07 dhcp,debug,packet id: 0xb
2025-04-13 23:03:07 dhcp,debug resending..
2025-04-13 23:03:07 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:07 dhcp,debug,packet type: solicit
2025-04-13 23:03:07 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:07 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:07 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:07 dhcp,debug,packet t1: 0
2025-04-13 23:03:07 dhcp,debug,packet t2: 0
2025-04-13 23:03:07 dhcp,debug,packet id: 0xb
2025-04-13 23:03:07 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:07 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:07 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:07 dhcp,debug,packet t1: 0
2025-04-13 23:03:07 dhcp,debug,packet t2: 0
2025-04-13 23:03:07 dhcp,debug,packet id: 0xb
2025-04-13 23:03:08 dhcp,debug resending..
2025-04-13 23:03:08 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:08 dhcp,debug,packet type: solicit
2025-04-13 23:03:08 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:08 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:08 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:08 dhcp,debug,packet t1: 0
2025-04-13 23:03:08 dhcp,debug,packet t2: 0
2025-04-13 23:03:08 dhcp,debug,packet id: 0xb
2025-04-13 23:03:08 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:08 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:08 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:08 dhcp,debug,packet t1: 0
2025-04-13 23:03:08 dhcp,debug,packet t2: 0
2025-04-13 23:03:08 dhcp,debug,packet id: 0xb
2025-04-13 23:03:08 dhcp,debug resending..
2025-04-13 23:03:08 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:08 dhcp,debug,packet type: solicit
2025-04-13 23:03:08 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:08 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:08 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:08 dhcp,debug,packet t1: 0
2025-04-13 23:03:08 dhcp,debug,packet t2: 0
2025-04-13 23:03:08 dhcp,debug,packet id: 0xb
2025-04-13 23:03:08 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:08 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:08 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:08 dhcp,debug,packet t1: 0
2025-04-13 23:03:08 dhcp,debug,packet t2: 0
2025-04-13 23:03:08 dhcp,debug,packet id: 0xb
2025-04-13 23:03:09 dhcp,debug resending..
2025-04-13 23:03:09 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:09 dhcp,debug,packet type: solicit
2025-04-13 23:03:09 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:09 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:09 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:09 dhcp,debug,packet t1: 0
2025-04-13 23:03:09 dhcp,debug,packet t2: 0
2025-04-13 23:03:09 dhcp,debug,packet id: 0xb
2025-04-13 23:03:09 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:09 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:09 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:09 dhcp,debug,packet t1: 0
2025-04-13 23:03:09 dhcp,debug,packet t2: 0
2025-04-13 23:03:09 dhcp,debug,packet id: 0xb
2025-04-13 23:03:09 dhcp,debug resending..
2025-04-13 23:03:09 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:09 dhcp,debug,packet type: solicit
2025-04-13 23:03:09 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:09 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:09 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:09 dhcp,debug,packet t1: 0
2025-04-13 23:03:09 dhcp,debug,packet t2: 0
2025-04-13 23:03:09 dhcp,debug,packet id: 0xb
2025-04-13 23:03:09 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:09 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:09 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:09 dhcp,debug,packet t1: 0
2025-04-13 23:03:09 dhcp,debug,packet t2: 0
2025-04-13 23:03:09 dhcp,debug,packet id: 0xb
2025-04-13 23:03:10 dhcp,debug resending..
2025-04-13 23:03:10 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:10 dhcp,debug,packet type: solicit
2025-04-13 23:03:10 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:10 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:10 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:10 dhcp,debug,packet t1: 0
2025-04-13 23:03:10 dhcp,debug,packet t2: 0
2025-04-13 23:03:10 dhcp,debug,packet id: 0xb
2025-04-13 23:03:10 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:10 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:10 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:10 dhcp,debug,packet t1: 0
2025-04-13 23:03:10 dhcp,debug,packet t2: 0
2025-04-13 23:03:10 dhcp,debug,packet id: 0xb
2025-04-13 23:03:10 dhcp,debug resending..
2025-04-13 23:03:10 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:10 dhcp,debug,packet type: solicit
2025-04-13 23:03:10 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:10 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:10 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:10 dhcp,debug,packet t1: 0
2025-04-13 23:03:10 dhcp,debug,packet t2: 0
2025-04-13 23:03:10 dhcp,debug,packet id: 0xb
2025-04-13 23:03:10 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:10 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:10 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:10 dhcp,debug,packet t1: 0
2025-04-13 23:03:10 dhcp,debug,packet t2: 0
2025-04-13 23:03:10 dhcp,debug,packet id: 0xb
2025-04-13 23:03:11 dhcp,debug resending..
2025-04-13 23:03:11 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:11 dhcp,debug,packet type: solicit
2025-04-13 23:03:11 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:11 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:11 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:11 dhcp,debug,packet t1: 0
2025-04-13 23:03:11 dhcp,debug,packet t2: 0
2025-04-13 23:03:11 dhcp,debug,packet id: 0xb
2025-04-13 23:03:11 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:11 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:11 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:11 dhcp,debug,packet t1: 0
2025-04-13 23:03:11 dhcp,debug,packet t2: 0
2025-04-13 23:03:11 dhcp,debug,packet id: 0xb
2025-04-13 23:03:11 dhcp,debug resending..
2025-04-13 23:03:11 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:11 dhcp,debug,packet type: solicit
2025-04-13 23:03:11 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:11 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:11 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:11 dhcp,debug,packet t1: 0
2025-04-13 23:03:11 dhcp,debug,packet t2: 0
2025-04-13 23:03:11 dhcp,debug,packet id: 0xb
2025-04-13 23:03:11 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:11 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:11 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:11 dhcp,debug,packet t1: 0
2025-04-13 23:03:11 dhcp,debug,packet t2: 0
2025-04-13 23:03:11 dhcp,debug,packet id: 0xb
2025-04-13 23:03:12 dhcp,debug resending..
2025-04-13 23:03:12 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:12 dhcp,debug,packet type: solicit
2025-04-13 23:03:12 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:12 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:12 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:12 dhcp,debug,packet t1: 0
2025-04-13 23:03:12 dhcp,debug,packet t2: 0
2025-04-13 23:03:12 dhcp,debug,packet id: 0xb
2025-04-13 23:03:12 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:12 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:12 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:12 dhcp,debug,packet t1: 0
2025-04-13 23:03:12 dhcp,debug,packet t2: 0
2025-04-13 23:03:12 dhcp,debug,packet id: 0xb
2025-04-13 23:03:12 dhcp,debug resending..
2025-04-13 23:03:12 dhcp,debug,packet send pppoe-out1 -> ff02::1:2%a4
2025-04-13 23:03:12 dhcp,debug,packet type: solicit
2025-04-13 23:03:12 dhcp,debug,packet transaction-id: 76e387
2025-04-13 23:03:12 dhcp,debug,packet -> clientid: 00030001 341a4c03 d1b0
2025-04-13 23:03:12 dhcp,debug,packet -> ia_na:
2025-04-13 23:03:12 dhcp,debug,packet t1: 0
2025-04-13 23:03:12 dhcp,debug,packet t2: 0
2025-04-13 23:03:12 dhcp,debug,packet id: 0xb
2025-04-13 23:03:12 dhcp,debug,packet -> elapsed_time: 0
2025-04-13 23:03:12 dhcp,debug,packet -> rapid_commit: [empty]
2025-04-13 23:03:12 dhcp,debug,packet -> ia_pd:
2025-04-13 23:03:12 dhcp,debug,packet t1: 0
2025-04-13 23:03:12 dhcp,debug,packet t2: 0
2025-04-13 23:03:12 dhcp,debug,packet id: 0xb
```

实在查不到原因
开始直接 mac 接光猫 pppoe 拨号也是拿不到 ipv6

继续尝试关闭桥接使用原生光猫路由模式发现仍然无法获取 ipv6 ，具体如图

光猫中各种配置如图



下图中 地址获取方式、前缀获取方式、dns 获取方式均尝试过各种配置无效




光猫桥接配置



因为使用光猫原生拨号都未拿到 ipv6 配置且状态显示不可用，开始怀疑电信后台是否真的为我开启了 ipv6 ，电话询问装维他们是否有设备上门直接测试 ipv6 ，回答目前没有设备支持测试且说目前 ipv6 仍未大规模开放实行，意思让我就用 ipv4 得了。建议让我使用第三方路由器拨号尝试，说之前也有个客户拿不到 ipv6 ，后来用了华硕路由器拨号成功拿到了 ipv6 配置，我心想这不是典型忽悠我么。明天准备继续电话装维让后台的人联系我看看问题出在哪里。

目前装维说后台查了确实开通的双栈，建议换台光猫，目前库存没有中兴这款 2.5G 的光猫，等有新的换个试试。

[andychuzhu]

你试试这个看看

[RoyCho]

有些 brasv6 配置有问题，抓包一下可以用的 bras 名字，然后指定别的 bras 拨号试试

[hackroad]

@RoyCho 扫出来的 2 个 SH-SH-JDMYQJ-MSE-1.MAN.M6000/SH-SH-LN-VBASCP-1.NMAN.V6000 都试过，不行。

[hackroad]

@andychuzhu 按照你的配置试了下，ipv6 依然无法获取.

[flynaj]

ROS 的 IPv6 问题多，光猫就是 openwrt 系统，你用 openwrt 24.10 测试一下。还有可能是你真是被限制了。解决方法么，可以在拉一根其它运营商的。

[piero66]

升级到 7.18.x duid 那里勾一下

[kuse2001]

公司和家的分开，别混在一起

[yinmin]

上海电信有些地方是没 ipv6 的

[superchijinpeng]

为什么要在家里搞呢

[letmefly]

op 家里就没有别的路由器了吗？ 反正用 openwrt 获取 ipv6 是最简单的。

[letmefly]

再看一次帖子，感觉是 pcdn 受害者。

[hackroad]

@letmefly #11 不玩 BT 、PT 、PCDN

[hackroad]

@piero66 Vaildate Server DUIDchang 试过 无效

[hackroad]

@superchijinpeng 双栈是应该我享受的权利啊

[hackroad]

@flynaj 电信的光猫都拿不到 ipv6 ，应该和 ROS 没啥关系。

[iijboom]

看 ros 的 pppoe 接口是否拿到了 local 和 remote pppoe IPv6 地址，检查 pppoe profile 是否有开启 IPv6

[superchijinpeng]

@hackroad #14

双栈是你的权利，但是公司的东西不应该在公司测吗，为什么非要回家搞呢

[gzlmx]

op 光猫配置没错。让师傅找运维支撑开通。一些旧的 PON 没有“做资料”，下挂用户要逐个申请开通。

[gzlmx]

补充，163 大后台开了双栈仍然没有就让师傅建运维单，让网监去处理

[hackroad]

@superchijinpeng #17 公司没有 ipv6 的环境，测个小东西，顺手的事。

[hackroad]

@iijboom profile 开启了，pppoe 接口只有 ipv4 和默认光猫路由拨号一致。

[hackroad]

@gzlmx #18 多谢，今天准备这么试试

[zer]

之前 ROS 连联通的光猫也获取不到 IPV6 ，用 Openwrt 没问题。就排查 ROS 的配置，发现是防火墙配的有问题。
这方面还是 openwrt 比较无脑，RouterOS 麻烦的多

[hackroad]

@zer 现在是排除法，直接用电信光猫都拿不到 ipv6 。

[flynaj]

@hackroad #15 这是我的光猫配置，

[huihuilang]

直接电信报修，他们会上门搞定搞定

[BelovedOne]

打电话就好了，自己搞没戏的

[keyfunc]

尝试桥接，然后导出下 ros ipv6 部份的配置，/ipv6 export

[hackroad]

@keyfunc
```
# 2025-04-14 15:58:29 by RouterOS 7.18.2
# software id = TI09-7WK3
#
/ipv6 dhcp-client
add disabled=yes interface=pppoe-out1 pool-name=IPV6 pool-prefix-length=56 request=prefix use-peer-dns=no validate-server-duid=no
/ipv6 firewall filter
add action=accept chain=input comment="Allow DHCPv6 client" dst-port=546 protocol=udp
add action=accept chain=input comment="Allow ICMPv6" protocol=icmpv6
add action=accept chain=input comment="Accept DHCPv6 client prefix delegation" dst-port=546 protocol=udp src-address=fe80::/10
/ipv6 settings
set accept-router-advertisements=yes
```

[godall]

399 （实际 199 ）套餐 2Gbps 下行、300Mbps 上行，每月 450G 5G 流量。——楼主这个套餐达量限速吗？下载 1T 后限速什么的。
我的 199 套餐只有 1G/100M, 40G 移动流量啊，怎么样升级到楼主这个。

另外，访问外网速度快不快？ 我加了 50 精品网速度屁都没有，还不如免费的移动宽度访问外网速度快。。。

[hackroad]

@godall 平时使用基本不会超过 1T ，也没留意过。我这个套餐是 399 大客户打对折。
访问外网我默认走香港出去，所以也不会关注到。

[iijboom]

@hackroad 那用 ros 肯定拿不到 ipv6 的，光猫用 dhcpv6 这一套也拿不到的，不关你事了，投诉吧

[erfesq]

你这是公网啊，是不是公网 v4 和 v6 只能要一个

[hackroad]

@erfesq 电信回复是 ipv6/ipv4 双栈

[sudwort]

浦东金桥某小区 只有 v4 公网

[hackroad]

@sudwort 装维或者后台确认不能双栈么

[godall]

@hackroad #31 有没有到香港的测速服务器，我试试看，如果速度还是慢是不是可以打电话报修电信了。。。