@@ -834,6 +834,10 @@ function cleanup_neutron {

         _move_neutron_addresses_route "$OVS_PHYSICAL_BRIDGE" "$PUBLIC_INTERFACE" False "inet"

         if [[ $(ip -f inet6 a s dev "$OVS_PHYSICAL_BRIDGE" | grep -c 'global') != 0 ]]; then

+            # ip(8) wants the prefix length when deleting

+            local v6_gateway

+            v6_gateway=$(ip -6 a s dev $OVS_PHYSICAL_BRIDGE | grep $IPV6_PUBLIC_NETWORK_GATEWAY | awk '{ print $2 }')

+            sudo ip -6 addr del $v6_gateway dev $OVS_PHYSICAL_BRIDGE

             _move_neutron_addresses_route "$OVS_PHYSICAL_BRIDGE" "$PUBLIC_INTERFACE" False "inet6"

         fi