Softether not working over NAT

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leich
Posts: 4
Joined: Sat Nov 19, 2022 2:44 pm

Softether not working over NAT

Post by leich » Sat Nov 19, 2022 2:49 pm

Hey guys, i am having trouble trying to connect to my sofether server VPN. I have tried with softether DDNS and following the tutorial with VPNAZURE DDNS but nothing seems works.

I have disabled windows firewall and also forwarded 443 port to the machine hosting the software.

solo
Posts: 1228
Joined: Sun Feb 14, 2021 10:31 am

Re: Softether not working over NAT

Post by solo » Sat Nov 19, 2022 10:40 pm

Assuming the following on your SE server...
VPN Azure Setting
Enable VPN Azure
Status: Connected
...your client gets a ping reply from the VPN Azure address. Confirmed?

leich
Posts: 4
Joined: Sat Nov 19, 2022 2:44 pm

Re: Softether not working over NAT

Post by leich » Sun Nov 20, 2022 6:27 pm

solo wrote:
Sat Nov 19, 2022 10:40 pm
Assuming the following on your SE server...
VPN Azure Setting
Enable VPN Azure
Status: Connected
...your client gets a ping reply from the VPN Azure address. Confirmed?
Hello solo, thanks for reply, yes i get ping response from VPN Azure.

solo
Posts: 1228
Joined: Sun Feb 14, 2021 10:31 am

Re: Softether not working over NAT

Post by solo » Sun Nov 20, 2022 10:44 pm

Then you're good to go as VPN Azure always works regardless of NAT or port forwarding.
What's the error message from your SE client?

leich
Posts: 4
Joined: Sat Nov 19, 2022 2:44 pm

Re: Softether not working over NAT

Post by leich » Tue Nov 22, 2022 11:58 pm

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Last edited by leich on Wed Nov 23, 2022 12:03 am, edited 1 time in total.

leich
Posts: 4
Joined: Sat Nov 19, 2022 2:44 pm

Re: Softether not working over NAT

Post by leich » Wed Nov 23, 2022 12:02 am

solo wrote:
Sun Nov 20, 2022 10:44 pm
Then you're good to go as VPN Azure always works regardless of NAT or port forwarding.
What's the error message from your SE client?
Hello, now it is working.

First i was getting an error with 443 port was beeing used from some service in SERVER machine(windows 11 pro). It was a default service called "Secure Socket Tunneling Protocol Service" . Then windows default VPN client showed an error "The PPP link control protocol was terminated" instead tested the connection using softether client and it worked, i would like to know why the windows 11 default vpn client isnt working if you know what that error means

Thanks for your help.

solo
Posts: 1228
Joined: Sun Feb 14, 2021 10:31 am

Re: Softether not working over NAT

Post by solo » Wed Nov 23, 2022 1:56 am

leich wrote:
Wed Nov 23, 2022 12:02 am
i would like to know why the windows 11 default vpn client isnt working
VPN Azure supports SE native VPN protocol and MS-SSTP.
In SE server you need to enable MS-SSTP.
In Windows client you need to choose MS-SSTP protocol, import the server's certificate and properly address the SE server.

In short, just use SE client :-)

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