是否nat存活包存在bug

[wuwenhan2010]

如果不设置存活包,黑山起源大约20s就会卡在半空中,且黑山网络检测工具5彩绘制会中断几秒,然后实体和环境数据包很高,然后正常,但我将存活包设为120时卡顿被大幅延缓了

[wuwenhan2010]

python.exe main/natter.py -b 5000 -p 27015 -u -U -k 10 -v
2025-06-04 04:49:59 [I] Natter v2.1.1
2025-06-04 04:49:59 [D] stun: Got address udp://113.124.44.227:11595 from udp://stun.miwifi.com:3478, source udp://192.168.1.5:5000
2025-06-04 04:50:02 [D] keep-alive: OK
2025-06-04 04:50:02 [D] stun: Got address udp://113.124.44.227:11595 from udp://stun.miwifi.com:3478, source udp://192.168.1.5:5000
2025-06-04 04:50:02 [D] fwd-socket: Starting socket udp://192.168.1.5:5000 forward to udp://192.168.1.5:27015
2025-06-04 04:50:03 [I]
2025-06-04 04:50:03 [I] Scanning UPnP Devices...
2025-06-04 04:50:03 [D] upnp: Got URL http://192.168.1.1:52869/gatedesc.xml
2025-06-04 04:50:03 [D] upnp: Got URL http://192.168.1.1:52869/description.xml
2025-06-04 04:50:03 [D] upnp: Got URL http://192.168.1.1:52869/gatedesc.xml
2025-06-04 04:50:03 [D] upnp: Got URL http://192.168.1.1:52869/description.xml
2025-06-04 04:50:03 [D] upnp: Got URL http://192.168.1.1:52869/gatedesc.xml
2025-06-04 04:50:03 [D] upnp: Got URL http://192.168.1.1:52869/description.xml
2025-06-04 04:50:03 [D] upnp: Got URL http://192.168.1.1:52869/gatedesc.xml
2025-06-04 04:50:03 [D] upnp: Got URL http://192.168.1.1:52869/description.xml
2025-06-04 04:50:03 [D] upnp: Got URL http://192.168.1.1:52869/description.xml
2025-06-04 04:50:03 [D] upnp: Got URL http://192.168.1.1:52869/gatedesc.xml
2025-06-04 04:50:03 [D] upnp: Got URL http://192.168.1.1:52869/description.xml
2025-06-04 04:50:03 [D] upnp: Got URL http://192.168.1.1:52869/gatedesc.xml
2025-06-04 04:50:03 [D] upnp: Got URL http://192.168.1.1:52869/description.xml
2025-06-04 04:50:03 [D] upnp: Got URL http://192.168.1.1:52869/gatedesc.xml
2025-06-04 04:50:04 [D] upnp: Got URL http://192.168.1.1:52869/gatedesc.xml
2025-06-04 04:50:04 [D] upnp: Got URL http://192.168.1.1:52869/gatedesc.xml
2025-06-04 04:50:04 [D] upnp: Got URL http://192.168.1.1:52869/gatedesc.xml
2025-06-04 04:50:04 [D] upnp: Got URL http://192.168.1.1:52869/gatedesc.xml
2025-06-04 04:50:05 [I] [UPnP] Found router 192.168.1.1
2025-06-04 04:50:05 [I]
2025-06-04 04:50:05 [I] udp://192.168.1.5:27015 <--socket--> udp://192.168.1.5:5000 <--Natter--> udp://113.124.44.227:11595
2025-06-04 04:50:05 [I]
2025-06-04 04:50:08 [D] keep-alive: OK
2025-06-04 04:50:08 [D] upnp: OK
2025-06-04 04:50:18 [D] keep-alive: OK
2025-06-04 04:50:18 [D] upnp: OK
2025-06-04 04:50:28 [D] keep-alive: OK
2025-06-04 04:50:28 [D] upnp: OK
2025-06-04 04:50:38 [D] keep-alive: OK
2025-06-04 04:50:38 [D] upnp: OK
2025-06-04 04:50:48 [D] keep-alive: OK
2025-06-04 04:50:48 [D] upnp: OK
2025-06-04 04:50:58 [D] keep-alive: OK
2025-06-04 04:50:58 [D] upnp: OK
2025-06-04 04:51:08 [D] keep-alive: OK
2025-06-04 04:51:08 [D] upnp: OK
2025-06-04 04:51:18 [D] keep-alive: OK
2025-06-04 04:51:18 [D] upnp: OK
2025-06-04 04:51:28 [D] keep-alive: OK
2025-06-04 04:51:28 [D] upnp: OK
2025-06-04 04:51:38 [D] keep-alive: OK
2025-06-04 04:51:38 [D] upnp: OK
2025-06-04 04:51:48 [D] keep-alive: OK
2025-06-04 04:51:48 [D] upnp: OK
2025-06-04 04:51:58 [D] keep-alive: OK
2025-06-04 04:51:58 [D] upnp: OK
2025-06-04 04:52:08 [D] keep-alive: OK
2025-06-04 04:52:08 [D] upnp: OK
2025-06-04 04:52:18 [D] keep-alive: OK
2025-06-04 04:52:18 [D] upnp: OK
2025-06-04 04:52:28 [D] keep-alive: OK
2025-06-04 04:52:28 [D] upnp: OK
2025-06-04 04:52:38 [D] keep-alive: OK
2025-06-04 04:52:38 [D] upnp: OK

[wuwenhan2010]

当我调为10时,每次保活都会带来卡顿

[wuwenhan2010]

我将
def keep_alive(self):
if self.sock is None:
self._connect()
if self.udp:
self._keep_alive_udp()
else:
self._keep_alive_tcp()
Logger.debug("keep-alive: OK")
改为
def keep_alive(self):
return
if self.sock is None:
self._connect()
if self.udp:
self._keep_alive_udp()
else:
self._keep_alive_tcp()
Logger.debug("keep-alive: OK")
问题暂时解决

[wuwenhan2010]

因为这样修改貌似会使upnp不起作用

[wuwenhan2010]

环境Windows10,20h2,Python 3.12

[MikeWang000000]

是的，这是 Windows 特有的一个已知 bug，并且很难解决。当 Natter 尝试复用 UDP 端口保活时，程序原有的通信会被中断（仅限 Windows）。并且 STUN 服务器的响应也有可能 “漏到” 应用程序上。

在保活的这一段时间，应用是无法与外界通信的，直至保活流程完成。而如果单纯取消保活，又有端口映射被自动关闭的可能。

由于受制于 Python 使用 Windows Socket 时的表现，这个 bug 不太可能被修复。Linux / macOS / FreeBSD 等没有这类问题，可以优先选择这类系统使用。或者使用 TCP 协议，这在 Windows 上没有问题。

[wuwenhan2010]

是否能创建新线程,使他向公网不断发送数据包以达到保活

[MikeWang000000]

这个不是线程的问题。而是两个UDP连接共用同一个来源端口，即使目的地址不同，在Windows上实际也只有一个连接能用（没法同时复用）。

[wuwenhan2010]

Windows对于socket太严格了

[wuwenhan2010]

这主要是两种内核逻辑的问题,类unix或unix都没问题