You shouldn't need to program anything as long as both MXs can reach the internet. If you have issues the work arounds for NAT issues are documented here: https://documentation.meraki.com/MX/Site-to-site_VPN/Meraki_Auto_VPN_-_Configuration_and_Troubleshooting#NAT_Type:_Unfriendly ... View more

Problem resolved: Factory reset the MX 105, starting working . ... View more

I like your answer, although I used the other solution. I will  contact SAML Admins. ... View more

Thanks. 😁 ... View more