Symptom
On cEdge, there is a mismatch between the RIB and FIB entries for default route. The Default route in FIB points towards Null 0 although it is shown as a valid route in the routing table.
Also any route pointing towards a particular site and learned through omp is programmed to point towards NULL0 vpn (default route is learned through this site only)
4B-1#sh ip route vrf 1
Gateway of last resort is 2.1.5.1 to network 0.0.0.0
m* 0.0.0.0/0 [251/0] via 2.1.5.1, 01:24:22, Sdwan-system-intf
7.0.0.0/16 is subnetted, 1 subnets
m 172.29.5.0/24 [251/0] via 2.1.5.1, 01:24:22, Sdwan-system-intf
4B-1#
4B-1#
4B-1#sh sdwan ip fib vpn 1
NEXTHOP NEXTHOP NEXTHOP SA
VPN PREFIX IF NAME ADDR LABEL INDEX TLOC IP COLOR
------------------------------------------------------------------------------------------------------------------------------
1 0.0.0.0/0 NULL0 0.0.0.0 - - - -
1 9.9.0.0/16 NULL0 0.0.0.0 - - - -
1 150.10.3.0/24 ipsec 10.101.3.2 1003 28 2.1.3.1 mpls
1 172.29.5.0/24 NULL0 0.0.0.0 - - - -
4B-1#
