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[GH-ISSUE #3446] 看来可能是我自己的问题 #2762
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Reference: github-starred/frp#2762
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Originally created by @huxuansong on GitHub (May 19, 2023).
Original GitHub issue: https://github.com/fatedier/frp/issues/3446
tcping nginx 和 apache也是不通，
可能nginx和apache能够访问的原因是ipv6
因为我同时解析了ipv6的的ddns
非常感谢作者能提供这么优秀的程序，
我也算得上是Frp的老用户了，从0.16版本就开始使用至今
反馈一个Frps在多线多播下的一个小问题，猜测某一设定与默认路由有关
我使用的openwrt软路由，IP是192.168.1.1
电信、联通双线双拨，分别获得公网IPv4，
但只有电信线路绑定DDNS动态域名ddnsct.XXX.com
然后我在这个openwrt上运行了frps最新版0.48
frpc客户端使用的是电信动态ddns域名ddnsct.XXX.com连接
如果openwrt设定默认路由/网关为电信线路的时候，frpc客户端连接frps正常，frp系统正常工作
但如果openwrt设定默认路由/网关为联通线路的时候，frpc客户端就无法连接上frps了
这个小问题猜测frps的某一项设定似乎与默认路由有关
而apache和nginx在上述切换默认路由/网关的情况下，是可以正常工作的
即：即使切换默认路由/网关为联通的时候，电信的动态域名，也是可以正常访问
不知道作者能否解决这个特殊情况下的小问题，谢谢
附：
frpc日志应该显示的是连接超时
2023/05/20 00:00:02 [I] [service.go:211] [a6ac36de3ccd54ea] try to reconnect to server...
2023/05/20 00:00:12 [W] [service.go:214] [a6ac36de3ccd54ea] reconnect to server error: dial tcp 27.159.132.213:17010: i/o timeout, wait 20s for another retry
2023/05/20 00:00:32 [I] [service.go:211] [a6ac36de3ccd54ea] try to reconnect to server...
2023/05/20 00:00:42 [W] [service.go:214] [a6ac36de3ccd54ea] reconnect to server error: dial tcp 27.159.132.213:17010: i/o timeout, wait 20s for another retry
2023/05/20 00:01:00 [I] [service.go:211] [a6ac36de3ccd54ea] try to reconnect to server...
2023/05/20 00:01:10 [W] [service.go:214] [a6ac36de3ccd54ea] reconnect to server error: dial tcp 27.159.132.213:17010: i/o timeout, wait 20s for another retry
2023/05/20 00:01:28 [I] [service.go:211] [a6ac36de3ccd54ea] try to reconnect to server...
2023/05/20 00:01:38 [W] [service.go:214] [a6ac36de3ccd54ea] reconnect to server error: dial tcp 27.159.132.213:17010: i/o timeout, wait 20s for another retry
2023/05/20 00:01:57 [I] [service.go:211] [a6ac36de3ccd54ea] try to reconnect to server...
2023/05/20 00:02:07 [W] [service.go:214] [a6ac36de3ccd54ea] reconnect to server error: dial tcp 27.159.132.213:17010: i/o timeout, wait 20s for another retry
Describe alternatives you've considered
No response
Affected area
@Becods commented on GitHub (May 20, 2023):
在tcping nginx和frp时切换网关
然后回报结果
@huxuansong commented on GitHub (May 20, 2023):
你好，tcping frp端口的时候切换网关如下
切换之后就No response了，切换之前是open的
Probing 27.159.132.213:17010/tcp - Port is open - time=6.880ms
Probing 27.159.132.213:17010/tcp - Port is open - time=6.818ms
Probing 27.159.132.213:17010/tcp - Port is open - time=5.863ms
Probing 27.159.132.213:17010/tcp - Port is open - time=6.807ms
Probing 27.159.132.213:17010/tcp - Port is open - time=6.848ms
Probing 27.159.132.213:17010/tcp - Port is open - time=7.342ms
Probing 27.159.132.213:17010/tcp - Port is open - time=12.071ms
Probing 27.159.132.213:17010/tcp - Port is open - time=6.768ms
Probing 27.159.132.213:17010/tcp - Port is open - time=7.299ms
Probing 27.159.132.213:17010/tcp - Port is open - time=7.919ms
Probing 27.159.132.213:17010/tcp - Port is open - time=5.848ms
Probing 27.159.132.213:17010/tcp - Port is open - time=7.083ms
Probing 27.159.132.213:17010/tcp - Port is open - time=7.543ms
Probing 27.159.132.213:17010/tcp - Port is open - time=6.175ms
Probing 27.159.132.213:17010/tcp - No response - time=2010.053ms
Probing 27.159.132.213:17010/tcp - No response - time=2012.726ms
Probing 27.159.132.213:17010/tcp - No response - time=2003.009ms
Probing 27.159.132.213:17010/tcp - No response - time=2013.992ms
Probing 27.159.132.213:17010/tcp - No response - time=2011.968ms
Probing 27.159.132.213:17010/tcp - No response - time=2011.147ms
Probing 27.159.132.213:17010/tcp - No response - time=2015.039ms
Probing 27.159.132.213:17010/tcp - No response - time=2011.682ms
Probing 27.159.132.213:17010/tcp - No response - time=2012.719ms
@huxuansong commented on GitHub (May 20, 2023):
看来可能不是frp的原因，
tcping nginx 和 apache也是不通，
可能nginx和apache能够访问的原因是ipv6
因为我同时解析了ipv6的的ddns
谢谢 Becods的指导