PPTP VPN through TL-R470T+

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PPTP VPN through TL-R470T+

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PPTP VPN through TL-R470T+
PPTP VPN through TL-R470T+
2016-02-06 12:43:16 - last edited 2021-08-21 05:57:01
Model :

Hardware Version : Not Clear

Firmware Version :

ISP :

I have setup a virtual server for 1723 port (pptp) and forwarded it to my synology.
I can see the port open from outside, but i cannot VPN in
I can VPN to synology if I connect to it locally..
I have PPTP ALG enabled.
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#1
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Re:PPTP VPN through TL-R470T+
2016-03-02 09:52:57 - last edited 2021-08-21 05:57:01
If you have already opened port for your VPN, I think the problem is not related to the NAT, but you can try with the PPTP ALG enabled and disabled. And may I know the exact topology of your network?
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#2
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Re:PPTP VPN through TL-R470T+
2016-03-04 22:56:03 - last edited 2021-08-21 05:57:01




I've tried with and w/o ALG.
This used to work at some point. I do not know what changed. It doesn't work if I forward PPTP (1723) to the Linksys or Synology
I should add that frontier router is just a modem. it no longer does routing (the picture is wrong). It's bridged with TL-R470T+.
I couldn't bridge wave2net connection, as i don't have login


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#3
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Re:PPTP VPN through TL-R470T+
2016-03-04 23:16:38 - last edited 2021-08-21 05:57:01
Hi

I have kind a of the same problem and from what I have read we need to enable some GRE Protocol 47. I am still trying to find out how to do that. I have the R480t+ but it should be almost the same so .... it is really strange.

It is crazy ...
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#4
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Re:PPTP VPN through TL-R470T+
2016-03-28 17:46:27 - last edited 2021-08-21 05:57:01
As we can see there is also NAT devices in the WAN side of the TL-R470T+, so you need to open port 1723 for TL-R470T+ or set it as DMZ host.
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#5
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Re:PPTP VPN through TL-R470T+
2016-03-29 22:23:39 - last edited 2021-08-21 05:57:01
if I do a port scan, it shows as open.
The TP-Link controls one of the connections fully (as it's bridged).
The issue is, the VPN doesn't work, if I use EITHER of the connections or EITHER of the devices behind it. If I do a VPN test on the local network it works. So the issue is in the TP-Link.
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#6
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