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VMs are not getting IPs

 

Hi all,

I am using Folsom on my set up. I followed steps from this : 
https://github.com/Amseknibilel/OpenStack-Folsom-Install-guide/blob/master/OpenStack_Folsom_Install_Guide_WebVersion.rst


I am able to login in Dashboard and also to launch VMs.
But the VMs are not getting IPs although Dashboard is showing
status active and their IPs. But when I am doing "ifconfig -a"
on VNC Console, it is showing no IP. Because of this Ping is also
not working.

My Set up is like this (as in the guide) :

Controller node : eth2(192.168.2.46), eth3(192.168.2.66)
Compute node : eth0(192.168.2.156), eth1(150.1.1.2)

                 Controller                                                        Compute

  eth2                               eth3                             eth1                           eth0
    |                                     |_______Router1_____|                                 |
    |__________________________Router2______________________|


Controller : 

/etc/network/interfaces :
auto lo
iface lo inet loopback
auto eth2
iface eth2 inet static
address 192.168.2.46
netmask 255.255.255.0
gateway 192.168.2.254
dns-nameservers 8.8.8.8
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

Compute:
/etc/network/interfaces :
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 192.168.2.156
netmask
 255.255.255.0
gateway 192.168.2.254
dns-nameservers 8.8.8.8
auto eth1
iface eth1 inet static
address 150.1.1.2
netmask 255.0.0.0

Also on Controller node br-ex is DOWN and on Compute node br-eth1,br-int are DOWN
and phy-br-eth1,int-br-eth1 are UP.
Also I didn't understand the significance of br-ex and br-eth1.

Any effort to fix this will be highly appreciated.

Regards,
Girija