Two default routes ?

Xavier_o
Comes here often

Two default routes ?

Can I have 2 (or more) default routes on MX appliance to two (or more) non Meraki IPsec tunnels ? 

7 REPLIES 7
ww
Kind of a big deal
Kind of a big deal

Re: Two default routes ?

Never used it myself. But the config accepts it. So i would say yes.

Aaron_Wilson
A model citizen

Re: Two default routes ?

2 default routes where? Advertised from hubs over AutoVPN?

PhilipDAth
Kind of a big deal

Re: Two default routes ?

Check out this article about non-Meraki VPN failover.

https://documentation.meraki.com/MX/Site-to-site_VPN/Tag-Based_IPsec_VPN_Failover 

Xavier_o
Comes here often

Re: Two default routes ?

Thanks, Phillip, that's really interesting but this is not exactly what I need if I am correct.

 

If I have 4 local subnets, I need to send all the traffic (default route) to a branch ONE with a failover IP (in case the main IPsec tunnel falls) and at the same time, those 4 subnets need to access a couple of servers on brach TWO (over 3rd IPsec tunnel).

So I would have 2 default routes to branch ONE with different priorities (for failover) and 3rd route just to access IP range on branch TWO. 3 tunnels and 3 static routes.

Only our office is with MX appliance so this would be non-Meraki VPN tunnels.

It cannot be done from what I was reading?

 

Thanks.

Bruce
Kind of a big deal

Re: Two default routes ?

I don’t believe you are going to be able to easily manipulate the default route the way that you want. You need to be aware of this:

 

  • Note that if an MX-Z device is configured with a default route (0.0.0.0/0) to a Non-Meraki VPN peer, traffic will not fail over to the WAN, even if the connection goes down.

Which comes from this document, https://documentation.meraki.com/MX/Site-to-site_VPN/Site-to-Site_VPN_Settings, under non-Meraki VPN peers. You may be able to achieve something with API and scripting as per the link Philip posted, but I believe that will be the closest you can get.

Xavier_o
Comes here often

Re: Two default routes ?

Thanks Bruce,

Note that if an MX-Z device is configured with a default route (0.0.0.0/0) to a Non-Meraki VPN peer, traffic will not fail over to the WAN, even if the connection goes down.

 

My intention was that it will fail-over to another IPsec tunnel if the primary is down.

 

But I realise that this won't work anyway as before being worried about 2nd default route I can't even get some traffic over 2nd IPsec tunnel. Seems like I can have only 1 non-Meraki IPsec working...

I cannot have the next hope as a VPN tunnel interface...

 

Bruce
Kind of a big deal

Re: Two default routes ?

Routes over non-Meraki VPNs are built through the configuration of the VPN (the remote subnets), and you can’t configure static routes to a VPN as the next hop. And you can’t have two remote subnets that are the same, which makes it difficult to have a backup and a spare IPSec tunnel (although you may be able achieve this if you can arrange your IP address scheme so you can have a /23 and a /24 that overlap - haven’t tried it myself).

 

So you can have multiple non-Meraki VPN peers, they just need to be to different IP subnets.

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