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Azure IPsec VPN site-to-site drops constantly

Rodrigo Silveira1

Hello,

we have set an IPsec vpn site-to-site with Azure, the connection works fine all day but the problem is that my server on Azure has an auto-shutdown schedule that triggers at 11PM and after some minutes the server is turned off the VPN is terminated.

On the next day when the server is started the VPN won't connect automatically, and the odd thing is that on the Azure side it says it is connected and I have to connect it manually on the XG.

Have already disabled the re-key settings on the Azure IPSec Policy.



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  • 0

    Hi there

    How many subnets are you routing over the link to Azure?

    I had issues about a year ago with this, and it was because I had 3 separate subnets being routed over the Azure VPN.

    I changed some addressing and created a single supernet on the client side using a /23 netmask and this made the connection more stable. This meant only 1 network was being VPN tunneled to Azure

    And by more stable I mean disconnections and failure to reconnect every night to maybe once in about 3 months it doesn't autoconnect.

    Azure VPN does have issues with policy based VPN's, next job for this customer is to upgrade to V18 and setup VTI. But they are 900km away from me.

    Regards

  • 0 in reply to GavinDaniels

    Hello,

    I have just one subnet on each side, I have made some changes on the DPD and now my tunnel disconnects during night but reconnects and remain stable, I have it running this way for one week now.

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