Chain PREROUTING (policy ACCEPT 1 packets, 60 bytes)
 pkts bytes target     prot opt in     out     source               destination         
    1    60 neutron-openvswi-PREROUTING  all  --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         

Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         

Chain POSTROUTING (policy ACCEPT 116 packets, 7023 bytes)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 MASQUERADE  all  --  *      eth0    172.24.4.0/24        0.0.0.0/0            /* 000 nat */

Chain neutron-openvswi-PREROUTING (1 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 ACCEPT     all  --  *      *       0.0.0.0/0            0.0.0.0/0            PHYSDEV match --physdev-out tap6862b6aa-de /* Accept all packets when port is trusted. */
    0     0 ACCEPT     all  --  *      *       0.0.0.0/0            0.0.0.0/0            PHYSDEV match --physdev-in tap6862b6aa-de /* Accept all packets when port is trusted. */
    0     0 ACCEPT     all  --  *      *       0.0.0.0/0            0.0.0.0/0            PHYSDEV match --physdev-out tapb434fd7a-0b /* Accept all packets when port is trusted. */
    0     0 ACCEPT     all  --  *      *       0.0.0.0/0            0.0.0.0/0            PHYSDEV match --physdev-in tapb434fd7a-0b /* Accept all packets when port is trusted. */