Unable to connect Azure to Meraki SDWAN

Question

Unable to connect Azure to Meraki SDWAN

George S. (IT Admin) 30

My Azure connects to all Meraki SDWAN devices, except my newest one. I opened a case with Cisco and they were able to determine using a packet capture that Cisco is sending the connection requests to Azure, but Azure is not responding back. Where on azure to I add another SDWAN peer? All the other ones connect fine.

Ganesh Patapati 6,915 Reputation points Microsoft External Staff Moderator

2025-03-18T08:51:20.5066667+00:00

Hello George S. (IT Admin)

Can you please update us if the action plan provided by was helpful?

Should there be any follow-up questions or concerns, please let us know and we shall try to address them.
Ganesh Patapati 6,915 Reputation points Microsoft External Staff Moderator

2025-03-18T18:10:54.7+00:00

Hello George S. (IT Admin)

Can you please update us if the action plan provided by was helpful?

Should there be any follow-up questions or concerns, please let us know and we shall try to address them.
George S. (IT Admin) 30 Reputation points

2025-03-19T14:58:24.6766667+00:00

Hi Ganesh. I have a session today with two members of my team to go over the steps you outlined above. I'll confirm this afternoon the outcome. Thanks.

George.
Ganesh Patapati 6,915 Reputation points Microsoft External Staff Moderator

2025-03-19T15:09:55.2966667+00:00

Hello @George S. (IT Admin)

Thanks for the reply!

If the issue still persists, please share your email ID with me via private messages so we can connect offline and resolve your query.
George S. (IT Admin) 30 Reputation points

2025-03-19T17:19:21.67+00:00

Ganesh,

We followed the steps and the 3rd step was crucial to us. upon creation of the additional VPN connection we were able to get a successful connection between Meraki and Azure. We then proceeded to include the IP ranges and subnets we had on our Meraki side and from there we were able to reach the DNS and Radius servers that Meraki needed. Thanks for your help.

George.
Ganesh Patapati 6,915 Reputation points Microsoft External Staff Moderator

2025-03-19T17:24:57.43+00:00

Hi George S. (IT Admin)

Please accept an answer if correct. Original posters help the community find answers faster by identifying the correct answer. Here is how.
Ganesh Patapati 6,915 Reputation points Microsoft External Staff Moderator

2025-03-19T19:17:08.3133333+00:00

Hi George S. (IT Admin)

Thanks for the reply!

I hope this has been helpful!

please don’t forget to close the thread by clicking Accept the answer wherever the information provided helps you, as this can be beneficial to other community members.

Accepted answer

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Ganesh Patapati 6,915 Reputation points Microsoft External Staff Moderator

2025-03-18T08:51:20.5066667+00:00

Hello George S. (IT Admin)

Can you please update us if the action plan provided by was helpful?

Should there be any follow-up questions or concerns, please let us know and we shall try to address them.
Ganesh Patapati 6,915 Reputation points Microsoft External Staff Moderator

2025-03-18T18:10:54.7+00:00

Hello George S. (IT Admin)

Can you please update us if the action plan provided by was helpful?

Should there be any follow-up questions or concerns, please let us know and we shall try to address them.
George S. (IT Admin) 30 Reputation points

2025-03-19T14:58:24.6766667+00:00

Hi Ganesh. I have a session today with two members of my team to go over the steps you outlined above. I'll confirm this afternoon the outcome. Thanks.

George.
Ganesh Patapati 6,915 Reputation points Microsoft External Staff Moderator

2025-03-19T15:09:55.2966667+00:00

Hello @George S. (IT Admin)

Thanks for the reply!

If the issue still persists, please share your email ID with me via private messages so we can connect offline and resolve your query.
George S. (IT Admin) 30 Reputation points

2025-03-19T17:19:21.67+00:00

Ganesh,

We followed the steps and the 3rd step was crucial to us. upon creation of the additional VPN connection we were able to get a successful connection between Meraki and Azure. We then proceeded to include the IP ranges and subnets we had on our Meraki side and from there we were able to reach the DNS and Radius servers that Meraki needed. Thanks for your help.

George.
Ganesh Patapati 6,915 Reputation points Microsoft External Staff Moderator

2025-03-19T17:24:57.43+00:00

Hi George S. (IT Admin)

Please accept an answer if correct. Original posters help the community find answers faster by identifying the correct answer. Here is how.
Ganesh Patapati 6,915 Reputation points Microsoft External Staff Moderator

2025-03-19T19:17:08.3133333+00:00

Hi George S. (IT Admin)

Thanks for the reply!

I hope this has been helpful!

please don’t forget to close the thread by clicking Accept the answer wherever the information provided helps you, as this can be beneficial to other community members.

Answer 1

Ganesh Patapati 6,915 Microsoft External Staff Moderator

Hello George S. (IT Admin)

To troubleshoot this issue, can you please cross verify the below things.

Please verify the new public IP and Meraki private subnets (Address Spaces) on the Azure Local network gateway.
Since Meraki typically uses Policy-Based VPNs, ensure the Azure VPN gateway and Meraki have the same VPN type.
Re-create the new VPN connection under the virtual network gateway and link it to the new local network gateway.
Check if any NSG and firewall rules properly allow traffic to the new Meraki IPs.
Ensure the IPsec policies on the Azure VPN gateway exactly match those on Meraki.
Use the "Connection Troubleshoot" tool on the Azure portal to test from source to destination, validating that the traffic is reaching Meraki. Please share the output results in a screenshot to understand the connectivity flow.

Refer: Configure custom IPsec/IKE connection policies for S2S VPN and VNet-to-VNet: Azure portal

Please accept an answer if correct. Original posters help the community find answers faster by identifying the correct answer. Here is how. Accepted answer

Ganesh Patapati 6,915 Reputation points Microsoft External Staff Moderator

2025-03-19T17:25:21.7833333+00:00

Hi George S. (IT Admin)

Thanks for the reply!

Please accept an answer if correct. Original posters help the community find answers faster by identifying the correct answer. Here is how.
Ganesh Patapati 6,915 Reputation points Microsoft External Staff Moderator

2025-03-20T13:23:09.98+00:00

Hi George S. (IT Admin)

Thanks for the reply!

Please accept an answer if correct. Original posters help the community find answers faster by identifying the correct answer. Here is how.

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Unable to connect Azure to Meraki SDWAN

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