BUG ? Unable to disable UDPv6

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hwalker
Posts: 2
Joined: Mon Jun 19, 2017 2:43 pm

BUG ? Unable to disable UDPv6

Post by hwalker » Mon Jun 19, 2017 2:54 pm

Hi, I am new to the Softether software so please forgive me if I am reporting a bug that isn't.

I am trying to disable all IPV6 within Softether. I have set the option DisableIPv6Listener to TRUE and that has disabled the TCP/IPv6 listeners but the UDP/IPv6 listeners remain active even after a server reboot.

Many thanks

cedar
Site Admin
Posts: 825
Joined: Sat Mar 09, 2013 5:37 am

Re: BUG ? Unable to disable UDPv6

Post by cedar » Mon Jul 31, 2017 6:37 am

I think these are for IPsec(500, 4500), L2TP(1701) and OpenVPN(1194).

Actually, SoftEther VPN Server can't accept IPv6 IPsec or L2TP connection.
You don't have to worry.

But OpenVPN may be able to work with UDP/IPv6.
You can disable UDP port for OpenVPN in OpenVPN configuration dialog.

hwalker
Posts: 2
Joined: Mon Jun 19, 2017 2:43 pm

Re: BUG ? Unable to disable UDPv6

Post by hwalker » Fri Aug 11, 2017 11:04 am

Thank you for your response.

My point is that the option is to disable IPv6 but it doesn't completely. It still listens on IPv6 UDP ports, which it shouldn't when this option is selected. It is a global option and doesn't say "Disable TCP/IPv6" so I would expect it to also disable UDP/IPv6.

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