2x MX250, 2x ISP connections, Load Share + HA

[nm00]

Hello,

Question about solution with 2x MX250, 2x MS425 with 2x ISP connections. Aggregation on MS425, connection to the Internet and L3 termination on MX250.

Is it possible to do Load Share between both ISPs(ex. Skype traffic goes to ISP1, rest on ISP2) + run HA (when both devices are active) between both MX and MS? Thanks in advance for help.

[CptnCrnch]

There is not a thing as "Active / Active"-HA for Meraki MX.

Apart from that, Load Sharing for both links is possible by using Flow Preference for the uplinks:

https://documentation.meraki.com/MX/Firewall_and_Traffic_Shaping/MX_Load_Balancing_and_Flow_Preferen...

[nm00]

Thanks for the reply, so it will be Active-Warm Spare configuration. Can you advise how it should be configured for WAN links? I believe every ISP should provide me 3 IP address and then I need to configure it with VRRP?

[CptnCrnch]

Correct, you would configure both MXs with local IPs and (at least advisable) another "Virtual IP" that would act as it sounds.

https://documentation.meraki.com/MX/Deployment_Guides/MX_Warm_Spare_-_High_Availability_Pair#Virtual...

[Slobs2]

VRRP is automatic with the MXs. Put one IP on the primary MX, then another on the secondary and then a third on the virtual IP. Once that is set, you can either make one WAN connection the primary and the other a failover or you can load balance by IP/Network. See here for more detail.

https://documentation.meraki.com/MX/Firewall_and_Traffic_Shaping/MX_Load_Balancing_and_Flow_Preferen...