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[GH-ISSUE #2552] xtcp can't be successfully #2029

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opened 2026-05-05 13:18:45 -06:00 by gitea-mirror · 4 comments
gitea-mirror commented 2026-05-05 13:18:45 -06:00
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Originally created by @TerryWang159 on GitHub (Aug 27, 2021).
Original GitHub issue: https://github.com/fatedier/frp/issues/2552

Error Message :

dial client udp address error: dial udp 127.0.0.1:50857->_IP Address:48909: connect: invalid argument

  1. FRPS.log
      _2021/08/27 11:05:24 [I] [root.go:200] frps uses config file: /home/terry/frp/frps.ini
      2021/08/27 11:05:24 [I] [service.go:192] frps tcp listen on 0.0.0.0:8760
      2021/08/27 11:05:24 [I] [service.go:202] frps kcp listen on udp 0.0.0.0:8760
      2021/08/27 11:05:24 [I] [service.go:235] http service listen on 0.0.0.0:808
      2021/08/27 11:05:24 [I] [service.go:250] https service listen on 0.0.0.0:8443
      2021/08/27 11:05:24 [I] [service.go:275] nat hole udp service listen on 0.0.0.0:2122
      2021/08/27 11:05:24 [I] [root.go:209] frps started successfully
      2021/08/27 11:05:29 [I] [service.go:449] [36e3b789e2f75a45] client login info: ip _[IP Address_ :57548] version [0.37.1] hostname [] os [linux] arch [amd64]
      2021/08/27 11:05:29 [D] [control.go:219] [36e3b789e2f75a45] new work connection registered
      2021/08/27 11:05:29 [I] [control.go:444] [36e3b789e2f75a45] new proxy [p2p_ssh_host] success
      2021/08/27 11:05:41 [I] [service.go:449] [75b43221c3733879] client login info: ip [127.0.0.1:43508] version [0.37.1] hostname [] os [linux] arch [amd64]
      2021/08/27 11:05:41 [D] [control.go:219] [75b43221c3733879] new work connection registered
      2021/08/27 11:05:59 [D] [control.go:473] [36e3b789e2f75a45] receive heartbeat
      2021/08/27 11:06:11 [D] [control.go:473] [75b43221c3733879] receive heartbeat
      2021/08/27 11:06:29 [D] [control.go:473] [36e3b789e2f75a45] receive heartbeat
      2021/08/27 11:06:35 [D] [control.go:248] [36e3b789e2f75a45] get work connection from pool
      2021/08/27 11:06:35 [D] [proxy.go:104] [36e3b789e2f75a45] [p2p_ssh_host] get a new work connection: [_IP Addresss_:57548]
      2021/08/27 11:06:35 [D] [control.go:219] [36e3b789e2f75a45] new work connection registered
      2021/08/27 11:06:41 [D] [control.go:473] [75b43221c3733879] receive heartbeat
      2021/08/27 11:06:46 [D] [control.go:248] [36e3b789e2f75a45] get work connection from pool
      2021/08/27 11:06:46 [D] [proxy.go:104] [36e3b789e2f75a45] [p2p_ssh_host] get a new work connection: [_IP Adress_:57548]
      2021/08/27 11:06:47 [D] [control.go:219] [36e3b789e2f75a45] new work connection registered
      2021/08/27 11:06:59 [D] [control.go:473] [36e3b789e2f75a45] receive heartbeat
      2021/08/27 11:07:11 [D] [control.go:473] [75b43221c3733879] receive heartbeat
      2021/08/27 11:07:29 [D] [control.go:473] [36e3b789e2f75a45] receive heartbeat
      2021/08/27 11:07:41 [D] [control.go:473] [75b43221c3733879] receive heartbeat_
  1. FRPC.log (supply services machine )
2021/08/27 11:05:29 [I] [service.go:304] [36e3b789e2f75a45] login to server success, get run id [36e3b789e2f75a45], server udp port [2122]
2021/08/27 11:05:29 [I] [proxy_manager.go:144] [36e3b789e2f75a45] proxy added: [p2p_ssh_host]
2021/08/27 11:05:29 [I] [control.go:180] [36e3b789e2f75a45] [p2p_ssh_host] start proxy success
2021/08/27 11:05:59 [D] [control.go:315] [36e3b789e2f75a45] send heartbeat to server
2021/08/27 11:05:59 [D] [control.go:346] [36e3b789e2f75a45] receive heartbeat from server
2021/08/27 11:06:29 [D] [control.go:315] [36e3b789e2f75a45] send heartbeat to server
2021/08/27 11:06:29 [D] [control.go:346] [36e3b789e2f75a45] receive heartbeat from server
2021/08/27 11:06:35 [D] [proxy_wrapper.go:231] [36e3b789e2f75a45] [p2p_ssh_host] start a new work connection, localAddr: 192.168.88.88:57548 remoteAddr: _IP Address_:8760
2021/08/27 11:06:43 [W] [proxy.go:383] [36e3b789e2f75a45] [p2p_ssh_host] get sid from visitor error: read udp 192.168.88.88:48909: i/o timeout
2021/08/27 11:06:46 [D] [proxy_wrapper.go:231] [36e3b789e2f75a45] [p2p_ssh_host] start a new work connection, localAddr: 192.168.88.88:57548 remoteAddr: _IP Adress_:8760
2021/08/27 11:06:55 [W] [proxy.go:383] [36e3b789e2f75a45] [p2p_ssh_host] get sid from visitor error: read udp 192.168.88.88:36678: i/o timeout
2021/08/27 11:06:59 [D] [control.go:315] [36e3b789e2f75a45] send heartbeat to server
2021/08/27 11:06:59 [D] [control.go:346] [36e3b789e2f75a45] receive heartbeat from server
2021/08/27 11:07:29 [D] [control.go:315] [36e3b789e2f75a45] send heartbeat to server
2021/08/27 11:07:29 [D] [control.go:346] [36e3b789e2f75a45] receive heartbeat from server
  1. FRPC.log (Visitor machine)
    2021/08/27 11:05:41 [I] [service.go:304] [75b43221c3733879] login to server success, get run id [75b43221c3733879], server udp port [2122]
    2021/08/27 11:05:41 [I] [visitor_manager.go:86] [75b43221c3733879] start visitor success
    2021/08/27 11:05:41 [I] [visitor_manager.go:130] [75b43221c3733879] visitor added: [p2p_me_visitor]
    2021/08/27 11:06:11 [D] [control.go:315] [75b43221c3733879] send heartbeat to server
    2021/08/27 11:06:11 [D] [control.go:346] [75b43221c3733879] receive heartbeat from server
    2021/08/27 11:06:35 [D] [visitor.go:208] [75b43221c3733879] [p2p_me_visitor] get a new xtcp user connection
    2021/08/27 11:06:35 [E] [visitor.go:277] [75b43221c3733879] [p2p_me_visitor] dial client udp address error: dial udp 127.0.0.1:50857->_IP Adress_ :48909: connect: invalid argument
    2021/08/27 11:06:41 [D] [control.go:315] [75b43221c3733879] send heartbeat to server
    2021/08/27 11:06:41 [D] [control.go:346] [75b43221c3733879] receive heartbeat from server
    2021/08/27 11:06:46 [D] [visitor.go:208] [75b43221c3733879] [p2p_me_visitor] get a new xtcp user connection
    2021/08/27 11:06:47 [E] [visitor.go:277] [75b43221c3733879] [p2p_me_visitor] dial client udp address error: dial udp 127.0.0.1:52644->_IP Adress_ :36678: connect: invalid argument
    2021/08/27 11:07:11 [D] [control.go:315] [75b43221c3733879] send heartbeat to server
    2021/08/27 11:07:11 [D] [control.go:346] [75b43221c3733879] receive heartbeat from server

Configurations:

  1. FRPS ---debian 10
[common]
bind_port = 8760
bind_udp_port = 2122
kcp_bind_port = 8760

authentication_method = token
token = Mmp@123
vhost_http_port = 808
vhost_https_port = 8443

log_file = /home/terry/frp/frps.log
log_level = debug
log_max_days = 3  
disable_log_color = false
  1. FRPC (supply services machine )
[common]
server_addr = 127.0.0.1
server_port = 8760
token = Mmp@123
tls_enable = true
tcp_mux = true
login_fail_exit = false
protocol = tcp

log_file = /home/terry/frp/frpc.log
log_level = debug
log_max_days = 3

[p2p_me_visitor]
type = xtcp
role = visitor  
server_name = p2p_ssh_host  
sk = wanghuan>%#189
bind_addr = 127.0.0.1 
bind_port = 6006
use_encryption = false
use_compression = true
  1. FRPC ( (Visitor machine)
[common]
server_addr = IP Adress
server_port = 8760
token = Mmp@123
tls_enable = true
tcp_mux = true

login_fail_exit = false
protocol = tcp

log_file = /home/terry/frp/frpc.log
log_level = debug
log_max_days = 3  
disable_log_color = false

[p2p_ssh_host]
type = xtcp
sk = wanghuan>%#189
local_ip = 192.168.88.88
local_port = 8096	
use_compression = true

Remark:

FRPC and FRPS with the same version . change protocol = KCP ,Show the same error. Firewall and Service port is opening,
FRPS has the public IP address and FRPC (192.168.88.88) is the DMZ Machine with the router settings .
Who can help me ,how to resolve it ? Thanks!

Originally created by @TerryWang159 on GitHub (Aug 27, 2021). Original GitHub issue: https://github.com/fatedier/frp/issues/2552 ### **Error Message :** **dial client udp address error: dial udp 127.0.0.1:50857->__IP Address_:48909: connect: invalid argument** 1. FRPS.log > _2021/08/27 11:05:24 [I] [root.go:200] frps uses config file: /home/terry/frp/frps.ini > 2021/08/27 11:05:24 [I] [service.go:192] frps tcp listen on 0.0.0.0:8760 > 2021/08/27 11:05:24 [I] [service.go:202] frps kcp listen on udp 0.0.0.0:8760 > 2021/08/27 11:05:24 [I] [service.go:235] http service listen on 0.0.0.0:808 > 2021/08/27 11:05:24 [I] [service.go:250] https service listen on 0.0.0.0:8443 > 2021/08/27 11:05:24 [I] [service.go:275] nat hole udp service listen on 0.0.0.0:2122 > 2021/08/27 11:05:24 [I] [root.go:209] frps started successfully > 2021/08/27 11:05:29 [I] [service.go:449] [36e3b789e2f75a45] client login info: ip _[IP Address_ :57548] version [0.37.1] hostname [] os [linux] arch [amd64] > 2021/08/27 11:05:29 [D] [control.go:219] [36e3b789e2f75a45] new work connection registered > 2021/08/27 11:05:29 [I] [control.go:444] [36e3b789e2f75a45] new proxy [p2p_ssh_host] success > 2021/08/27 11:05:41 [I] [service.go:449] [75b43221c3733879] client login info: ip [127.0.0.1:43508] version [0.37.1] hostname [] os [linux] arch [amd64] > 2021/08/27 11:05:41 [D] [control.go:219] [75b43221c3733879] new work connection registered > 2021/08/27 11:05:59 [D] [control.go:473] [36e3b789e2f75a45] receive heartbeat > 2021/08/27 11:06:11 [D] [control.go:473] [75b43221c3733879] receive heartbeat > 2021/08/27 11:06:29 [D] [control.go:473] [36e3b789e2f75a45] receive heartbeat > 2021/08/27 11:06:35 [D] [control.go:248] [36e3b789e2f75a45] get work connection from pool > 2021/08/27 11:06:35 [D] [proxy.go:104] [36e3b789e2f75a45] [p2p_ssh_host] get a new work connection: [_IP Addresss_:57548] > 2021/08/27 11:06:35 [D] [control.go:219] [36e3b789e2f75a45] new work connection registered > 2021/08/27 11:06:41 [D] [control.go:473] [75b43221c3733879] receive heartbeat > 2021/08/27 11:06:46 [D] [control.go:248] [36e3b789e2f75a45] get work connection from pool > 2021/08/27 11:06:46 [D] [proxy.go:104] [36e3b789e2f75a45] [p2p_ssh_host] get a new work connection: [_IP Adress_:57548] > 2021/08/27 11:06:47 [D] [control.go:219] [36e3b789e2f75a45] new work connection registered > 2021/08/27 11:06:59 [D] [control.go:473] [36e3b789e2f75a45] receive heartbeat > 2021/08/27 11:07:11 [D] [control.go:473] [75b43221c3733879] receive heartbeat > 2021/08/27 11:07:29 [D] [control.go:473] [36e3b789e2f75a45] receive heartbeat > 2021/08/27 11:07:41 [D] [control.go:473] [75b43221c3733879] receive heartbeat_ 2. FRPC.log (supply services machine ) 2021/08/27 11:05:29 [I] [service.go:304] [36e3b789e2f75a45] login to server success, get run id [36e3b789e2f75a45], server udp port [2122] 2021/08/27 11:05:29 [I] [proxy_manager.go:144] [36e3b789e2f75a45] proxy added: [p2p_ssh_host] 2021/08/27 11:05:29 [I] [control.go:180] [36e3b789e2f75a45] [p2p_ssh_host] start proxy success 2021/08/27 11:05:59 [D] [control.go:315] [36e3b789e2f75a45] send heartbeat to server 2021/08/27 11:05:59 [D] [control.go:346] [36e3b789e2f75a45] receive heartbeat from server 2021/08/27 11:06:29 [D] [control.go:315] [36e3b789e2f75a45] send heartbeat to server 2021/08/27 11:06:29 [D] [control.go:346] [36e3b789e2f75a45] receive heartbeat from server 2021/08/27 11:06:35 [D] [proxy_wrapper.go:231] [36e3b789e2f75a45] [p2p_ssh_host] start a new work connection, localAddr: 192.168.88.88:57548 remoteAddr: _IP Address_:8760 2021/08/27 11:06:43 [W] [proxy.go:383] [36e3b789e2f75a45] [p2p_ssh_host] get sid from visitor error: read udp 192.168.88.88:48909: i/o timeout 2021/08/27 11:06:46 [D] [proxy_wrapper.go:231] [36e3b789e2f75a45] [p2p_ssh_host] start a new work connection, localAddr: 192.168.88.88:57548 remoteAddr: _IP Adress_:8760 2021/08/27 11:06:55 [W] [proxy.go:383] [36e3b789e2f75a45] [p2p_ssh_host] get sid from visitor error: read udp 192.168.88.88:36678: i/o timeout 2021/08/27 11:06:59 [D] [control.go:315] [36e3b789e2f75a45] send heartbeat to server 2021/08/27 11:06:59 [D] [control.go:346] [36e3b789e2f75a45] receive heartbeat from server 2021/08/27 11:07:29 [D] [control.go:315] [36e3b789e2f75a45] send heartbeat to server 2021/08/27 11:07:29 [D] [control.go:346] [36e3b789e2f75a45] receive heartbeat from server 3. FRPC.log (Visitor machine) ``` 2021/08/27 11:05:41 [I] [service.go:304] [75b43221c3733879] login to server success, get run id [75b43221c3733879], server udp port [2122] 2021/08/27 11:05:41 [I] [visitor_manager.go:86] [75b43221c3733879] start visitor success 2021/08/27 11:05:41 [I] [visitor_manager.go:130] [75b43221c3733879] visitor added: [p2p_me_visitor] 2021/08/27 11:06:11 [D] [control.go:315] [75b43221c3733879] send heartbeat to server 2021/08/27 11:06:11 [D] [control.go:346] [75b43221c3733879] receive heartbeat from server 2021/08/27 11:06:35 [D] [visitor.go:208] [75b43221c3733879] [p2p_me_visitor] get a new xtcp user connection 2021/08/27 11:06:35 [E] [visitor.go:277] [75b43221c3733879] [p2p_me_visitor] dial client udp address error: dial udp 127.0.0.1:50857->_IP Adress_ :48909: connect: invalid argument 2021/08/27 11:06:41 [D] [control.go:315] [75b43221c3733879] send heartbeat to server 2021/08/27 11:06:41 [D] [control.go:346] [75b43221c3733879] receive heartbeat from server 2021/08/27 11:06:46 [D] [visitor.go:208] [75b43221c3733879] [p2p_me_visitor] get a new xtcp user connection 2021/08/27 11:06:47 [E] [visitor.go:277] [75b43221c3733879] [p2p_me_visitor] dial client udp address error: dial udp 127.0.0.1:52644->_IP Adress_ :36678: connect: invalid argument 2021/08/27 11:07:11 [D] [control.go:315] [75b43221c3733879] send heartbeat to server 2021/08/27 11:07:11 [D] [control.go:346] [75b43221c3733879] receive heartbeat from server ``` ### **Configurations:** 1. **FRPS ---debian 10** ``` [common] bind_port = 8760 bind_udp_port = 2122 kcp_bind_port = 8760 authentication_method = token token = Mmp@123 vhost_http_port = 808 vhost_https_port = 8443 log_file = /home/terry/frp/frps.log log_level = debug log_max_days = 3 disable_log_color = false ``` 2. **FRPC (supply services machine )** ``` [common] server_addr = 127.0.0.1 server_port = 8760 token = Mmp@123 tls_enable = true tcp_mux = true login_fail_exit = false protocol = tcp log_file = /home/terry/frp/frpc.log log_level = debug log_max_days = 3 [p2p_me_visitor] type = xtcp role = visitor server_name = p2p_ssh_host sk = wanghuan>%#189 bind_addr = 127.0.0.1 bind_port = 6006 use_encryption = false use_compression = true ``` 3. **FRPC ( (Visitor machine)** ``` [common] server_addr = IP Adress server_port = 8760 token = Mmp@123 tls_enable = true tcp_mux = true login_fail_exit = false protocol = tcp log_file = /home/terry/frp/frpc.log log_level = debug log_max_days = 3 disable_log_color = false [p2p_ssh_host] type = xtcp sk = wanghuan>%#189 local_ip = 192.168.88.88 local_port = 8096 use_compression = true ``` ### **Remark:** FRPC and FRPS with the same version . change protocol = KCP ,Show the same error. Firewall and Service port is opening, FRPS has the public IP address and FRPC (192.168.88.88) is the DMZ Machine with the router settings . Who can help me ,how to resolve it ? Thanks!
gitea-mirror 2026-05-05 13:18:45 -06:00
gitea-mirror commented 2026-05-05 13:18:48 -06:00
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@TerryWang159 commented on GitHub (Aug 30, 2021):

有大神帮忙回答么?

<!-- gh-comment-id:907953018 --> @TerryWang159 commented on GitHub (Aug 30, 2021): 有大神帮忙回答么?
gitea-mirror commented 2026-05-05 13:18:50 -06:00
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@TerryWang159 commented on GitHub (Sep 11, 2021):

报错信息如下 ，请问有大神这是什么问题？

2021/09/11 22:31:48 [E] [visitor.go:277] [e2ab3c5995653401] [p2p_me_visitor] dial client udp address error: dial udp 127.0.0.1:40788->XX.XX.XX.XX:37564: connect: invalid argument

<!-- gh-comment-id:917417251 --> @TerryWang159 commented on GitHub (Sep 11, 2021): 报错信息如下 ，请问有大神这是什么问题？ 2021/09/11 22:31:48 [E] [visitor.go:277] [e2ab3c5995653401] [p2p_me_visitor] dial client udp address error: dial udp 127.0.0.1:40788->XX.XX.XX.XX:37564: **connect: invalid argument**
gitea-mirror commented 2026-05-05 13:18:50 -06:00
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@github-actions[bot] commented on GitHub (Oct 12, 2021):

Issues go stale after 30d of inactivity. Stale issues rot after an additional 7d of inactivity and eventually close.

<!-- gh-comment-id:940560018 --> @github-actions[bot] commented on GitHub (Oct 12, 2021): Issues go stale after 30d of inactivity. Stale issues rot after an additional 7d of inactivity and eventually close.
gitea-mirror commented 2026-05-05 13:18:51 -06:00
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@ashleysommer commented on GitHub (Dec 2, 2021):

I'm seeing this same issue. Can this be re-opened?

<!-- gh-comment-id:984287524 --> @ashleysommer commented on GitHub (Dec 2, 2021): I'm seeing this same issue. Can this be re-opened?
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Reference: github-starred/frp#2029
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Delete branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?