vm1
default via 10.0.2.2 dev eth0 
10.0.2.0/24 dev eth0  proto kernel  scope link  src 10.0.2.15 
172.16.2.128/28 dev eth1  proto kernel  scope link  src 172.16.2.131 
172.16.2.144/28 dev eth2  proto kernel  scope link  src 172.16.2.151 
172.16.2.160/28 via 172.16.2.156 dev eth2 
172.16.2.176/28 via 172.16.2.156 dev eth2 
vm3
default via 10.0.2.2 dev eth0 
10.0.2.0/24 dev eth0  proto kernel  scope link  src 10.0.2.15 
172.16.2.128/28 via 172.16.2.186 dev eth2 
172.16.2.144/28 via 172.16.2.186 dev eth2 
172.16.2.160/28 dev eth1  proto kernel  scope link  src 172.16.2.163 
172.16.2.176/28 dev eth2  proto kernel  scope link  src 172.16.2.183 
vm1-6
default via 10.0.2.2 dev eth0 
10.0.2.0/24 dev eth0  proto kernel  scope link  src 10.0.2.15 
172.16.2.144/28 dev eth1  proto kernel  scope link  src 172.16.2.156 
vm2-6
default via 10.0.2.2 dev eth0 
10.0.2.0/24 dev eth0  proto kernel  scope link  src 10.0.2.15 
vm3-6
default via 10.0.2.2 dev eth0 
10.0.2.0/24 dev eth0  proto kernel  scope link  src 10.0.2.15 
172.16.2.176/28 dev eth2  proto kernel  scope link  src 172.16.2.186