The Type-5 route prefix entry can be found on both Leaf1/2 nodes. Log in to Leaf1 and run the following show commands:
show ip bgp l2vpn evpn – observe the first column that shows Type-5 route entry as  and shows Leaf2 as next hop for this entry.
show ip route vrf tenant1 – observe the external router’s subnet 100.65.21.0/24 in the route table.
Ping an IP address within the subnet 100.65.21.0/24 from endhost1 to show end to end connectivity.