Just got off a phone call with some engineers at Microsoft who informed me that both Cisco and Microsoft have mutually agreed that using a Cisco Meraki firewall is not recommended for creating site to site (S2S) VPN tunnels to Microsoft Azure.

The issue is the Phase 1 IKE Timeout value that the Meraki uses is not supported.

This was rumored to be fixed in late 2016, and then later in a firmware update in February 2017, but as of yet, we have not seen it yet.

If anyone has updated information on this please post it in the comments as I have a few clients running the Meraki’s.

Thanks,

Joe