为什么打微信语音会开启upnp？

goranger

是这样的，我家宽带前段时间折腾了一下光猫桥接，自从改了之后会偶尔断网，而且路由器也不会重新拨号。

今天出了趟门，回家没多久发现突然又没网了，当事老婆刚开微信语音和她妈聊天，然后我就开电脑看路由日志如下：

[UPnP set event: del_nat_rule] from source 10.0.0.33, Sunday,  April 12, 2020 22:29:38
[UPnP set  event: add_nat_rule] from source 10.0.0.33, Sunday, April 12, 2020 22:29:29
[UPnP set  event: del_nat_rule] from source 10.0.0.33, Sunday, April 12, 2020 22:29:26
[UPnP set  event: add_nat_rule] from source 10.0.0.33, Sunday, April 12, 2020 22:29:26
[DHCP IP:  10.0.0.33] to MAC address   , Sunday, April 12, 2020 22:29:16
[DoS Attack:  RST Scan] from source: 119.29.126.219, port 443, Sunday, April 12, 2020  22:28:01
[DoS Attack:  RST Scan] from source: 119.28.38.139, port 443, Sunday, April 12, 2020  22:28:01
[DoS  Attack: SYN/ACK Scan] from source: 164.132.200.133, port 8746, Sunday, April  12, 2020 22:25:43

这段日志记录就是断网前不到半分钟吧。

这个时候检查路由互联网状态还显示正常，但是家里所有设备都无法链接外网，这时候路由重新拨号就恢复正常了。

接着我就做了个小实验，我让老婆用微信给我打语音，然后我又用微信给她打语音，发现都会开启upnp

[UPnP set event: del_nat_rule] from source 10.0.0.33, Sunday, April 12, 2020 22:51:50
[UPnP set event: add_nat_rule] from source 10.0.0.33, Sunday, April 12, 2020 22:51:45
[UPnP set event: add_nat_rule] from source 10.0.0.21, Sunday, April 12, 2020 22:51:44
[UPnP set event: add_nat_rule] from source 10.0.0.33, Sunday, April 12, 2020 22:51:43
[UPnP set event: add_nat_rule] from source 10.0.0.21, Sunday, April 12, 2020 22:51:42
[UPnP set event: add_nat_rule] from source 10.0.0.33, Sunday, April 12, 2020 22:51:42
[UPnP set event: del_nat_rule] from source 10.0.0.21, Sunday, April 12, 2020 22:51:40
[UPnP set event: add_nat_rule] from source 10.0.0.33, Sunday, April 12, 2020 22:51:40
[UPnP set event: del_nat_rule] from source 10.0.0.21, Sunday, April 12, 2020 22:51:39
[UPnP set event: add_nat_rule] from source 10.0.0.33, Sunday, April 12, 2020 22:51:36
[UPnP set event: add_nat_rule] from source 10.0.0.21, Sunday, April 12, 2020 22:51:36
[UPnP set event: del_nat_rule] from source 10.0.0.21, Sunday, April 12, 2020 22:51:11
[UPnP set event: add_nat_rule] from source 10.0.0.21, Sunday, April 12, 2020 22:50:58

‘’
接下来进一步测试，我把路由器的upnp功能关了，再打微信语音发现还是可以打通？？

那么问题来了，微信开启upnp干嘛？方便建立连接？因为我印象里还有一次突然断网查看路由日志，附近操作也是老婆手机开了upnp？

难道这个开启的操作有一定概率触发我家网络崩溃？

印象里上古时代会出现一种网络问题，qq能上打不开网页。。。

顺便问一下，我家是找电信要的公网ip，有必要开启upnp功能吗？影响bt下载小姐姐吗

微尘

bt下载都会开启upnp，映射端口方便穿越nat
微信电话估计也是一样的原理，打个洞直接点对点传输
upnp走不通就穿越失败了，会用服务器中转。
电信新光猫有问题，upnp是阉割过的，有一定概率崩溃。
申请公网ip bt下载肯定要开upnp不然白费了，也可以自己设端口映射

—— 来自 Xiaomi Redmi K20 Pro, Android 10上的 S1Next-鹅版 v2.2.2