L2tp VPN Problem

Question

L2tp VPN Problem

Farhad Soltani 0

Hi,

I have a Mikrotik machine in Azure, I want to make a L2tp vpn with presharedkey. But the final phase for 1701 can not stablished.

I try to connect vpn to public IP of my machine.

Please help me.

Thanks

Farhad

Praveen Bandaru 1,010 Reputation points Microsoft External Staff

2025-02-24T11:31:37.6133333+00:00
Hello Farhad Soltani
Greetings!
I understand that you are trying to connect on-premises to Azure.

For further investigation, please share the following information:

Could you elaborate on the issue for better understanding of what you are trying to achieve? Please let me know which VPN you are using (S2S or P2S).

Are you using a third-party VPN or one managed by Azure?

Also, let me know if this is an existing setup or if you are facing any connectivity issues.

Additionally, please share your topology diagram.

Kindly check the public doc of Azure VPN Gateway

Hope the above answer helps! Please let us know do you have any further queries.

Please do consider to “up-vote” wherever the information provided helps you, this can be beneficial to other community members.
Praveen Bandaru 1,010 Reputation points Microsoft External Staff

2025-02-25T17:07:56.0733333+00:00

Hello Farhad Soltani

Greetings!

If possible, please share the above details for further investigation. If you have any additional queries, let us know.
Praveen Bandaru 1,010 Reputation points Microsoft External Staff

2025-02-26T16:52:33.7266667+00:00

Hello Farhad Soltani

Greetings!

Following up to see if the above suggestion was helpful. And, if you have any further query do let us know.
Farhad Soltani 0 Reputation points

2025-02-27T07:25:58.2466667+00:00

Hi,

Thank you Praveen.

I want to deploy my VPN gateway. I do not want to use Azure VPN gateway.

Thanks

1 answer

Your answer

Praveen Bandaru 1,010 Reputation points Microsoft External Staff

2025-02-24T11:31:37.6133333+00:00

Hello Farhad Soltani
Greetings!
I understand that you are trying to connect on-premises to Azure.

For further investigation, please share the following information:

Could you elaborate on the issue for better understanding of what you are trying to achieve? Please let me know which VPN you are using (S2S or P2S).

Are you using a third-party VPN or one managed by Azure?

Also, let me know if this is an existing setup or if you are facing any connectivity issues.

Additionally, please share your topology diagram.

Kindly check the public doc of Azure VPN Gateway

Hope the above answer helps! Please let us know do you have any further queries.

Please do consider to “up-vote” wherever the information provided helps you, this can be beneficial to other community members.
Praveen Bandaru 1,010 Reputation points Microsoft External Staff

2025-02-25T17:07:56.0733333+00:00

Hello Farhad Soltani

Greetings!

If possible, please share the above details for further investigation. If you have any additional queries, let us know.
Praveen Bandaru 1,010 Reputation points Microsoft External Staff

2025-02-26T16:52:33.7266667+00:00

Hello Farhad Soltani

Greetings!

Following up to see if the above suggestion was helpful. And, if you have any further query do let us know.
Farhad Soltani 0 Reputation points

2025-02-27T07:25:58.2466667+00:00

Hi,

Thank you Praveen.

I want to deploy my VPN gateway. I do not want to use Azure VPN gateway.

Thanks

Answer 1

Hello Farhad Soltani

Greetings!

I understand that you are encountering the issue when using your own VPN.

Our analysis shows that the NVA features are deployed correctly, and the IP forwarding feature is enabled in the VM, but the issue arises when you enable the VPN.

Please note that community members in Q&A may have expertise in Azure products, but the same cannot be said for third-party appliances. I suggest reaching out to the third-party community (Mikrotik) or support for detailed instructions on configuring the NVA.

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And also check the below public documents for more understanding:

I hope this has been helpful!

If above is unclear and/or you are unsure about something add a comment below.

Your feedback is important so please take a moment to accept answers. If you still have questions, please let us know what is needed in the comments so the question can be answered. Thank you for helping to improve Microsoft Q&A!
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L2tp VPN Problem

1 answer

Your answer