[GH-ISSUE #4429] 端口被占用，怎么解决

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2026-05-05 14:14:51 -06:00

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Originally created by @gongjianfeng1982 on GitHub (Sep 10, 2024).
Original GitHub issue: https://github.com/fatedier/frp/issues/4429

Bug Description

A地址:frpc（name = "p2p_siemens"）电脑连接现场的设备192.168.8.8
服务器:frps 创建server地址1.1.1.1
B地址:frpc（name = "p2p_siemens_visitor"）工程电脑连接远程设备192.168.8.8
工控电脑专业软件，不能修改ip为127.0.0.1，不能修改端口，固定端口102.
不知道这个问题怎么解决，普通的tcp可以连接上，但是中转会造成流量问题，我想通过xtcp直连。
请高手帮忙想个办法吗？

frpc Version

0.6

frps Version

0.6

System Architecture

windows10

Configurations

proxies # siemens server -> resmon.exe | netstat.exe -aon
localIP = "192.168.8.8"
localPort = 102
name = "p2p_siemens"
secretKey = "xyz9527"
type = "xtcp"

visitors # siemens client -> resmon.exe | netstat.exe -aon 停止102服务 Siemens S7DOS Help Service
bindAddr = "127.0.0.1"
bindPort = 102
name = "p2p_siemens_visitor"
secretKey = "xyz9527"
serverName = "p2p_siemens"
type = "xtcp"

Logs

Steps to reproduce

...

Affected area

Docs
Installation
Performance and Scalability
Security
User Experience
Test and Release
Developer Infrastructure
Client Plugin
Server Plugin
Extensions
Others

Originally created by @gongjianfeng1982 on GitHub (Sep 10, 2024). Original GitHub issue: https://github.com/fatedier/frp/issues/4429 ### Bug Description A地址:frpc（name = "p2p_siemens"）电脑连接现场的设备192.168.8.8 服务器:frps 创建server地址1.1.1.1 B地址:frpc（name = "p2p_siemens_visitor"）工程电脑连接远程设备192.168.8.8 工控电脑专业软件，不能修改ip为127.0.0.1，不能修改端口，固定端口102. 不知道这个问题怎么解决，普通的tcp可以连接上，但是中转会造成流量问题，我想通过xtcp直连。请高手帮忙想个办法吗？ ### frpc Version 0.6 ### frps Version 0.6 ### System Architecture windows10 ### Configurations [[proxies]] # siemens server -> resmon.exe | netstat.exe -aon localIP = "192.168.8.8" localPort = 102 name = "p2p_siemens" secretKey = "xyz9527" type = "xtcp" [[visitors]] # siemens client -> resmon.exe | netstat.exe -aon 停止102服务 Siemens S7DOS Help Service bindAddr = "127.0.0.1" bindPort = 102 name = "p2p_siemens_visitor" secretKey = "xyz9527" serverName = "p2p_siemens" type = "xtcp" ### Logs ![image](https://github.com/user-attachments/assets/8bab1829-782b-4d00-a19e-5c50722c4b86) ### Steps to reproduce 1. 2. 3. ... ### Affected area - [ ] Docs - [ ] Installation - [ ] Performance and Scalability - [ ] Security - [ ] User Experience - [ ] Test and Release - [ ] Developer Infrastructure - [ ] Client Plugin - [ ] Server Plugin - [ ] Extensions - [ ] Others