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If this is overlooked, then the VPN tunnel will fail to establish due to the mismatched subnets. Within Dashboard, be sure to add the supernet (in our example, 192.168.0.0/19) of your Microsoft Azure networks instead of the individual subnets within the Non-Meraki peers > Private subnets field. This typically includes a supernet (summary address) and its individual subnets. For example, when advertising the networks of 192.168.10.0/24 and 192.168.20.0/24, the supernet would be 192.168.0.0/19. Once the VPN configuration has been completed on Microsoft Azure, check the address space(s) designated to traverse the VPN tunnel. One of the most common site-to-site VPN issues between a Cisco Meraki appliance and Microsoft Azure is caused by mismatched local/remote subnets, as described above. May 8 07:23:43 VPN msg: phase1 negotiation failed. May 8 07:23:53 VPN msg: no suitable proposal found. May 8 07:23:53 VPN msg: failed to get valid proposal. Here is an example log entry of a phase 1 failure: Review the event log for entries that indicate there has been a failure during phase 1 or 2 negotiation.

The following log entries show a successful VPN connection between the MX (IP: 1.1.1.1) and a Non-Meraki VPN device (IP:2.2.2.2): A specific time range can also be defined to narrow the results if you need to know the specific time the issue occurred. Select the All Non-Meraki / Client VPN event log type as the sole Event type include option and click on the search button.

NOTE: The information from this point forward in this article only applies to Non-Meraki VPN Connections running firmware prior to MX15.12Įvent logs can be displayed from Network-wide > Monitor > Event log.

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This article describes non-Meraki VPN considerations, required configuration settings, and how to troubleshoot MX to non-Meraki VPN connections.įor information on troubleshooting Meraki-to-Meraki VPN, please refer to Site-to-Site VPN Troubleshooting. The MX Security Appliance provides the ability to configure VPN tunnels to non-Meraki devices. Vendor-specific examples and limitations.The tunnel goes down regularly after some time.Some hosts can communicate across the tunnel others can’t.Event Log: 'phase1 negotiation failed due to time up'.Event Log: 'exchange Identity Protection not allowed in any applicable rmconf.'.Event Log: 'exchange Aggressive not allowed in any applicable rmconf'.Event Log: 'failed to pre-process ph2 packet/failed to get sainfo'.Event Log: 'no-proposal-chosen received' (Phase 2).

Event Log: 'no-proposal-chosen received' (Phase 1).

Cisco Meraki VPN Settings and Requirements.

Troubleshooting Non-Meraki Site-to-site VPN