Sangfor VPN Cannot Build Up Due To Connection Is Dropped

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Issue Description

Sangfor VPN cannot be build up and in the system log shown the below error:

Handling Process

  • Checking the setting in HQ and branch.
  • Ping HQ side public ip success.
  • Telnet HQ side public ip with port 4009 failed.



Root Cause

The port 4009 had been assign to another public ip. The wan interface has 3 public ip and after enable the vpn service the port 4009 direct assign to public ip which locate in the first place.

Solution

Change the order of the public ip. For example, the public ip which use for build VPN put in the first place.
Faisal Posted 13 Aug 2020 07:43
  
Thank you very much for the information ...
Osama Muhammad Lv3Posted 31 Aug 2020 14:00
  
Thank you very much
Faisal Posted 30 Oct 2020 11:19
  
Nice article ...
Faisal Posted 09 Dec 2020 09:00
  
Great info ...
Faisal Posted 11 Mar 2021 09:58
  
Very informative …
Faisal Posted 27 May 2021 14:23
  
Nice guidance ...

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Doc ID: 2477
Author: CTI Jimy
Updated: 2019-12-24 11:12
Version: