Here is the OSPF for WAN routers
RT01-Primary for Data
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router ospf 1
router-id 172.16.98.42
redistribute eigrp 1 subnets
redistribute bgp 64589 subnets route-map BGP-to-OSPF
network 172.16.100.216 0.0.0.3 area 0
route-map BGP-to-OSPF, permit, sequence 10
Match clauses:
ip address prefix-lists: vocus-sip-service
Set clauses:
metric 70 <<<<< higher cost for voice service
Policy routing matches: 0 packets, 0 bytes
route-map BGP-to-OSPF, permit, sequence 20
Match clauses:
ip address prefix-lists: Prefix-in
Set clauses:
metric 20 <lower cost default route here
RT02-Primary for Voice
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router ospf 1
router-id 172.16.97.42
redistribute eigrp 1 metric 160 subnets
redistribute bgp 65032 subnets route-map BGP-to-OSPF
network 172.16.100.224 0.0.0.3 area 0
route-map BGP-to-OSPF permit 10
match ip address prefix-list vocus-sip-service
set metric 20 <<<<Lower cost for Voice
route-map BGP-to-OSPF permit 20
match ip address prefix-list Prefix-in
set metric 70 <<< higher cost for default traffic
Normally default route via RT01, but if problem on RT01 will go thru RT02,
But the default route is not advertised on the Meraki, has static going to RT01 so would cause problems if RT01 or WAN failed
On a cisco router would normally increase the cost of the static route to give preference to OSPF