Disable default VPN ports on windows 500 and 4500

windows-7 windows networking vpn netstat

9,531

You need to stop the “IKE and AuthIP IPsec Keying Modules” (short name: “IKEEXT”) service. It’ll obviously break Windows’ IPSec VPN client until you start them again.

9,531

manjesh23

Hello, My name is Manjesh and I am from Bangalore, India. I am working as a Gold Support Network Security Engineer. I have done MCSE, RHCE and CCIE courses and I am curious about the skills in OS or the Kernel level. Looking for a good platform to prove my skills. What I am doing in organisation is just serving my daily needs but I am still thirsty to gain knowledge, I am looking for something which I can experiment / research and develop. I am not looking for any money for doing this, all I am looking for is to get satisfied by redesigning or giving something new to the technology. I have a programming knowledge on DOS (Windows Batch Scripting) and Linux Bash Scripting. I have also worked on firewalls and penetration testing tools but for some reason I am still not satisfied, I wanna deep dive into the OS kernel level and to get wondered. From your end I am looking for a good platform where I can test/research and dedicate a great thing to the IT. I can be reached at my cell: +91 9480001033 and email: [email protected]. Hoping for the best from your end at the earliest. Regards, Man

Updated on September 18, 2022

Comments

manjesh23 over 1 year

How do I disable the default listening VPN ports on windows machine?

When I type netstat -an | findstr "500" command on the windows command prompt I get to see default 500 and 4500 ports listening which is not letting me to open any VPN software as these ports are already opened.

C:\Users\mn>netstat -an | findstr "500" UDP 0.0.0.0:500 *:* UDP 0.0.0.0:4500 *:* UDP [::]:500 *:* UDP [::]:4500 *:*

This might be weird but how to disable this on windows? need help.

When I try to run ike-scan.exe software, I get this error and need to disable default ports. Here is what I am doing,

C:\Users\mn\Downloads\ike-scan-win32-1.9>ike-scan.exe ERROR: Could not bind network socket to local port 500 Only one process may bind to the source port at any one time. ERROR: bind: Address already in use
- Daniel B over 8 years
  
  Those are related to IPSec VPNs. Do you have any incoming VPN configured on that machine?
- manjesh23 over 8 years
  
  Updated the question. Yes this is IPSec.
Daniel Kamil Kozar almost 7 years

FYI : Under Windows XP (please don't judge me), this service is simply called "IPSEC Services".