AS65000: yinfb-ubuntu
tap0: 10.1.0.1/24  (openvpn server)
tap1: 10.45.0.3/24 (openvpn client, to nato-hk)
networks: 192.168.1.0/24, 192.168.2.0/24
peers: 
  AS65045 on 10.45.0.1 (weight 1)
  AS65001 on 10.1.0.2  (weight 5)

AS65001: nat-mikrotik
tap0: 10.1.0.2/24  (openvpn client, to yinfb-ubuntu)
tap1: 10.45.0.2/24 (openvpn client, to nato-hk)
tap2: 10.3.0.56/24 (openvpn client, to nato-ny)
networks: 10.0.0.0/24
peers: 
  AS65045 on 10.45.0.1 (weight 1)
  AS65003 on 10.3.0.1
  AS65000 on 10.1.0.1 (weight 5)

AS65002: nato-jp
gre0: 10.254.0.2/24 (gre tunnel to nato-ny)
gre1: 10.88.0.2/24  (gre tunnel to nato-hk)
networks: 10.254.1.0/24
peer: 
  AS65003 on 10.254.0.1
  AS65045 on 10.88.0.1

AS65003: nato-ny
tap0: 10.3.0.1/24   (openvpn server)
gre0: 10.254.0.1/24 (gre tunnel, to nato-jp)
network: 10.254.0.0/24
peers:
  AS65001 on 10.3.0.56
  AS65002 on 10.254.0.2

AS65045: nato-hk
tap0: 10.45.0.1/24 (openvpn server)
gre0: 10.88.0.1/24 (gre tunnel to nato-jp)
network: 10.45.0.0/24
peers:
  AS65000 on 10.45.0.3
  AS65001 on 10.45.0.2
  AS65002 on 10.88.0.2

cost (RTT ms): 

AS 	65000	65001	65002	65003	65045
65000	0	300	80	320	40
65001	300	0	170	8	207
65002	80	170	0	145	60
65003	320	8	145	0	200
65045	40	207	60	200	0


      AS65045 -- AS65002
      /  |          |
AS65000  |          |
      \  |          |
      AS65001 -- AS65003