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Author Topic: DynDNS with OpenVPN Interface Problem  (Read 2470 times)

sepei

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DynDNS with OpenVPN Interface Problem
« on: November 30, 2016, 02:30:20 pm »
Hello,

is there a bug with dyndns in combination with openvpn? I got the problem if I bind an interface of an openvpn connection (Maybe also other interfaces?) to dyndns it dont let me reconnect to the openvpn servers. When I set it up it works correctly but on the moment when I reconnect to the openvpn server while the ddns is activated something is blocking the connections. The connection ends here and then timeouts:

Nov 30 14:22:44   openvpn[75950]: /usr/local/sbin/ovpn-linkup ovpnc9 HIDDEN_VPNDATA init
Nov 30 14:22:44   openvpn[75950]: /sbin/ifconfig ovpnc9 HIDDEN_VPNDATA up

If I delete the DDNS-Rule I can reconnect as before and everything is working.
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sepei

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Re: DynDNS with OpenVPN Interface Problem
« Reply #1 on: November 30, 2016, 03:03:22 pm »
I just found out if the openvpn tunnel gives me the same IP then before then it lets me connect. So if the cached-ip on the DDNS-Page is same to the IP that I get from the vpn connection (Virtual Addr) then it works. The cached-ip is also red until the connection with the old IP is entablished. So does the DDNS somehow block the openvpn connection if I dont get the same virtual address anymore?
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sepei

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Re: DynDNS with OpenVPN Interface Problem
« Reply #2 on: December 01, 2016, 07:56:53 pm »
Hm anyone an idea? Or is opnsense with DynDns in combination with openvpn broken?
« Last Edit: December 01, 2016, 08:08:43 pm by sepei »
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