DDNS and IPv4 issue

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hassan147
Posts: 3
Joined: Sat Mar 04, 2017 9:05 am

DDNS and IPv4 issue

Post by hassan147 » Sat Mar 04, 2017 10:04 am

Good morning,

Hello everyone. Recently I have begun configuring a vpn server but I faced a problem I have never encountered previous configurations of this wonderful software with this other software. I have attached a screenshot below and I would appreciate if you could help out from this issue.

[attachment=0]ddns_issue.PNG[/attachment]

Thank you
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moatazelmasry
Posts: 336
Joined: Sat Aug 15, 2015 7:41 pm

Re: DDNS and IPv4 issue

Post by moatazelmasry » Sat Mar 04, 2017 10:39 am

Please have a look at server_log and paste it here if necessary

hassan147
Posts: 3
Joined: Sat Mar 04, 2017 9:05 am

Re: DDNS and IPv4 issue

Post by hassan147 » Sat Mar 04, 2017 10:46 am

Here is the VPN Server Log:

2017-03-04 13:44:09.358 ------------------------------------------------------
2017-03-04 13:44:09.358 SoftEther VPN Server Version 4.22 Build 9634 (English)
2017-03-04 13:44:09.358 Compiled 2016/11/27 15:23:56 by yagi at pc30
2017-03-04 13:44:09.358 Log Messages are written with UTF-8 Encoding Format.
2017-03-04 13:44:09.358 The SoftEther VPN Server has been started.
2017-03-04 13:44:09.358 IPsec Module: The IPsec ver 2.0 (ISAKMP/IKEv1) processing module is started.
2017-03-04 13:44:09.358 OpenVPN Module: The OpenVPN Server Module is starting.
2017-03-04 13:44:09.358 Loading the configuration file.
2017-03-04 13:44:09.499 Monitoring the directory "C:\Program Files\SoftEther VPN Server". If the amount of available free disk space becomes less than 8,00 GBytes, the backup files for log files and configurations that are saved on the sub-directories of this directory will be automatically deleted in the order of oldest first. The amount of free disk space that determines when to start deletion can be modified by changing the "AutoDeleteCheckDiskFreeSpaceMin" item in the configuration file.
2017-03-04 13:44:09.514 Virtual Hub "VPN-UCIG" has been started.
2017-03-04 13:44:09.514 The MAC address of Virtual Hub "VPN-UCIG" is "00-AE-92-BF-60-E7".
2017-03-04 13:44:09.514 [HUB "VPN-UCIG"] The Virtual Hub is now online.
2017-03-04 13:44:09.514 TCP Listener (port 443) is starting.
2017-03-04 13:44:09.514 TCP Listener (port 443) has started. Now listening for connection from client.
2017-03-04 13:44:09.514 TCP Listener (port 992) is starting.
2017-03-04 13:44:09.514 TCP Listener (port 992) has started. Now listening for connection from client.
2017-03-04 13:44:09.514 TCP Listener (port 1194) is starting.
2017-03-04 13:44:09.514 TCP Listener (port 1194) has started. Now listening for connection from client.
2017-03-04 13:44:09.514 TCP Listener (port 5555) is starting.
2017-03-04 13:44:09.514 TCP Listener (port 5555) has started. Now listening for connection from client.
2017-03-04 13:44:09.514 [HUB "VPN-UCIG"] The Local Bridge connection "Realtek RTL8139/810x Family Fast Ethernet NIC (ID=4258143354)" has started. The bridge session "SID-LOCALBRIDGE-1" was created.
2017-03-04 13:44:09.514 The configuration file has been loaded.
2017-03-04 13:44:09.514 Starting the automatically saving background task. The interval between auto-saves is 300 seconds. You can change the interval by changing the parameter AutoSaveConfigSpan in the configuration file.
2017-03-04 13:44:09.780 [HUB "VPN-UCIG"] Session "SID-LOCALBRIDGE-1": A Local Bridge connection to physical Ethernet interface "Realtek RTL8139/810x Family Fast Ethernet NIC (ID=4258143354)" was started.
2017-03-04 13:44:17.108 On the TCP Listener (Port 5555), a Client (IP address 127.0.0.1, Host name "UCIG-PC8.UCIG.local", Port number 55528) has connected.
2017-03-04 13:44:17.108 For the client (IP address: 127.0.0.1, host name: "UCIG-PC8.UCIG.local", port number: 55528), connection "CID-1-9706684655" has been created.
2017-03-04 13:44:17.124 SSL communication for connection "CID-1-9706684655" has been started. The encryption algorithm name is "RC4-MD5".
2017-03-04 13:44:17.124 Connection "CID-1-9706684655" connected using server admin mode.
2017-03-04 13:44:17.124 Connection "CID-1-9706684655" successfully logged in using administration mode.
2017-03-04 13:44:17.124 Connection "CID-1-9706684655" created a new remote procedure call session "RPC-2352" for the purpose of administration mode.
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hassan147
Posts: 3
Joined: Sat Mar 04, 2017 9:05 am

Re: DDNS and IPv4 issue

Post by hassan147 » Sun Mar 05, 2017 5:59 am

Morning,

Please some help! What would be the possible solutions please?? Thanks in advance.

thisjun
Posts: 2458
Joined: Mon Feb 24, 2014 11:03 am

Re: DDNS and IPv4 issue

Post by thisjun » Thu Mar 16, 2017 6:27 am

There might be a transparent proxy that performs MITM.
Please change SoftEther VPN code.

https://github.com/SoftEtherVPN/SoftEth ... DNS.c#L531
https://github.com/SoftEtherVPN/SoftEth ... DNS.c#L830

bool no_cert_verify = false; -> bool no_cert_verify = true;

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