Floating IP Configuration in Quantum + openvswitch

I need some help in configuration of quantum floating ips.

I am able to ping and ssh my instances via their internal ips (172.24.1.x)

But not able to access them via floating ips .

I am using gre type network, and using all in one box, once its up i am adding some more compute node in the cluster.

find below the results.

root@us000901:~# quantum floatingip-list
+--------------------------------------+------------------+---------------------+--------------------------------------+
| id | fixed_ip_address | floating_ip_address | port_id |
+--------------------------------------+------------------+---------------------+--------------------------------------+
| 2381aa6c-2690-4a52-b558-4c553e1f1bd9 | 172.24.1.3 | 10.83.192.132 | 97697210-fd93-43a1-bdb3-d096f51c137e |
| 241482f1-41ca-49d6-8d72-ff46d6bd6ec5 | | 10.83.192.134 | |
| 6ca0e952-bf83-4602-b46a-a5e95ef64266 | | 10.83.192.135 | |
| f3f9e910-a3dd-4872-a977-8835cf0f95b3 | | 10.83.192.133 | |
+--------------------------------------+------------------+---------------------+--------------------------------------+

root@us000901:~# quantum router-list
+--------------------------------------+-----------------+--------------------------------------------------------+
| id | name | external_gateway_info |
+--------------------------------------+-----------------+--------------------------------------------------------+
| 935a00d9-1426-40d7-8304-d33d83c350dc | provider-router | {"network_id": "162030bb-ab1a-4346-87cb-b3182619d959"} |
+--------------------------------------+-----------------+--------------------------------------------------------+

root@us000901:~# quantum net-list
+--------------------------------------+-----------+--------------------------------------+
| id | name | subnets |
+--------------------------------------+-----------+--------------------------------------+
| 162030bb-ab1a-4346-87cb-b3182619d959 | ext_net | fa9dc9b5-03cd-4090-ae44-484fe968d825 |
| 35918ece-1847-4213-a283-8968136c45eb | admin-net | 9404d2c0-d495-4db2-a661-3ab93958337d |
+--------------------------------------+-----------+--------------------------------------+

root@us000901:~# quantum subnet-list
+--------------------------------------+------+------------------+----------------------------------------------------+
| id | name | cidr | allocation_pools |
+--------------------------------------+------+------------------+----------------------------------------------------+
| 9404d2c0-d495-4db2-a661-3ab93958337d | | 172.24.1.0/24 | {"start": "172.24.1.2", "end": "172.24.1.254"} |
| fa9dc9b5-03cd-4090-ae44-484fe968d825 | | 10.83.192.128/25 | {"start": "10.83.192.131", "end": "10.83.192.250"} |
+--------------------------------------+------+------------------+----------------------------------------------------+

root@us000901:~# ovs-vsctl show
e2339720-8c6b-4329-8ac1-26fb93007447
    Bridge br-int
        Port br-int
            Interface br-int
                type: internal
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "qvo97697210-fd"
            tag: 2
            Interface "qvo97697210-fd"
        Port "tap5cb36f0c-c7"
            tag: 2
            Interface "tap5cb36f0c-c7"
                type: internal
    Bridge br-tun
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port br-tun
            Interface br-tun
                type: internal
    Bridge br-ex
        Port "eth3"
            Interface "eth3"
        Port br-ex
            Interface br-ex
                type: internal
    ovs_version: "1.4.0+build0"
root@us000901:~#

root@us000901:~# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet static
    address 10.83.192.1
    netmask 255.255.255.0
    network 10.83.192.0
    broadcast 10.83.192.255
    gateway 10.83.192.254
    # dns-* options are implemented by the resolvconf package, if installed
    dns-nameservers 10.83.2.25
    dns-search ap.tieto.com

# VMs Networks with OVS in tunnel mode
auto eth1
iface eth1 inet static
address 172.24.0.3
netmask 255.255.0.0

# Public Bridge
auto eth3
iface eth3 inet manual
up ifconfig $IFACE 0.0.0.0 up
up ip link set $IFACE promisc on
down ip link set $IFACE promisc off
down ifconfig $IFACE down
root@us000901:~#

I am also having one question can i use floating ip are of same network where i am using my node eth0.