L2TP Ipsec configuration on TL-ER6020

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L2TP Ipsec configuration on TL-ER6020

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
L2TP Ipsec configuration on TL-ER6020
L2TP Ipsec configuration on TL-ER6020
2017-12-29 21:27:10 - last edited 2021-04-19 12:07:37
Model :

Hardware Version :

Firmware Version :

ISP :

Hi all,
I'm facing issues to configure VPN on my TL-ER6020. I've configure it correctly (I hope).

Port 500 - 1701 - 4500 UDP are open, but when a client try to connect it gave me the screen attached on administration page.





And on client the error is: "Can't connect The L2TP connection attempt failed because the security layer encountered a processing error during initial negotiations with the remote computer."

Could someone help me on this?

Thanks in advance,
Marco.
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Re:L2TP Ipsec configuration on TL-ER6020
2018-02-01 16:19:14 - last edited 2021-04-19 12:07:37
Did you enable the IPSec first?
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Re:L2TP Ipsec configuration on TL-ER6020
2019-06-26 07:37:19 - last edited 2021-04-19 12:07:37

Panda is right. It is probably because of Encryption for L2TP. Check, that server and client sides use the same configuration. For windows you can check Properties of your L2TP connection and Security there, so you can configure there 'not allowed', 'mustbe', 'optional', etc.  

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