Hello,
We have a PPTP tunnel towards a datacenter we own, the tunnel is made in a router towards our datacenter, the Meraki is connected to that router and all of the internet is actually comin through that PPTP tunnel .
The Ipsec connects but doesn't learn any routes .. what might the problem be ?
your help is highly appreciated
Thanks
Are you talking about the 3rd party vpn? https://documentation.meraki.com/MX/Site-to-site_VPN/Configuring_Site-to-site_VPN_between_MX_Applian...
It does not learn routes dynamically
No, its not a 3rd party VPN, but the internet that feeds the Meraki itself is a tunneled internet, so Meraki shoudn't have any idea about that .
Everything in the Meraki MX is just the usual configuration default settings .
So your not learning routes in the autovpn? And on other sites it works ?
Can you test mtu size from a client at the router
ping www.meraki.com -l 1472 -f
Correct ! we can't learn the routes through the autovpn, and you are right about the MTU I went here just to get someone reaching this level, though .. the pptp tunnel handles 1450 Byte MTU that is correct, but I have used MRRU to increase the data that could be transmitted on the tunnel to 1600 Bytes, so I can easily ping packets with 1472 Byte size normally now .
Yet the issue is still the same we can't learn routes, I was thinking to change the MTU size by contacting Meraki but I don't have access to the customer's portal, and I think the mrru is enough to fix the issue over the pptp link .
What do you think ?
I guess thats fine then.
Are you sure they setup the autovpn routing correct. Like bgp or select vlan to be in vpn.
Everything sure is correct, because if they use a different internet connection even cellular one, they just work fine . I don't even know where to troubleshoot .
To let you know the router making the pptp is a Mikrotik router .
The ping could go fine up to 1500 packet size