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2015-09-16 07:21:08 -0600 received badge  Famous Question (source)
2015-05-12 12:27:17 -0600 commented question What should I select for EXTERNAL_NETWORK_CIDR

But the instance can't reach the internet, and from the internet i can't reach the instance.

2015-05-12 12:26:06 -0600 commented question What should I select for EXTERNAL_NETWORK_CIDR

I asked to request some IP from 10.9.0.0/16 network, but they can't give me. So now I using this command:

--allocation-pool start=10.0.0.101,end=10.0.0.110 --disable-dhcp --gateway 10.0.0.1 10.0.0.0/24

I can launch an instance and SSH to it from the Network node.

2015-05-10 15:27:35 -0600 received badge  Notable Question (source)
2015-05-10 05:29:33 -0600 received badge  Enthusiast
2015-05-08 17:32:53 -0600 commented question What should I select for EXTERNAL_NETWORK_CIDR

Or I should request some IPs from the university for pool?

2015-05-07 06:06:23 -0600 commented question What should I select for EXTERNAL_NETWORK_CIDR

I'm using this command:

 neutron subnet-create ext-net --name ext-subnet \
  --allocation-pool start=FLOATING_IP_START,end=FLOATING_IP_END \
  --disable-dhcp --gateway EXTERNAL_NETWORK_GATEWAY EXTERNAL_NETWORK_CIDR
2015-05-07 06:06:09 -0600 commented question What should I select for EXTERNAL_NETWORK_CIDR

I can't allocate pool from 10.9.0.0/16 network, because it in the university and the IP-s are reserved, so I guess i should use the Data network (10.0.1.0/24) or Management network (10.0.0.0/24). Management network has a gateway, but it is not real. (10.0.0.1)

2015-05-06 07:16:52 -0600 received badge  Popular Question (source)
2015-05-05 23:03:36 -0600 asked a question What should I select for EXTERNAL_NETWORK_CIDR

I am installing Openstack to a 3 node (Controller, Network, Compute) architecture from http://docs.openstack.org/juno/install-guide/install/apt/content/neutron_initial-external-network.html (here). All the nodes are virtual machines.

I have done everything like they write it down, but now, i'm confused about networks. Here are some interfaces: Every eth0 interface is connected to the internet. From controller node /etc/network/interfaces:

auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
    address 10.9.0.245
    netmask 16
    gateway 10.9.255.254
    dns-nameservers 152.66.243.60
auto eth0
iface eth0 inet6 static
    address 2001:738:2001:4031:9:0:245:0
    netmask 80
    gateway 2001:738:2001:4031:9:255:254:0
    dns-nameservers 152.66.243.60
auto eth1
iface eth1 inet static
    address 10.0.0.11
    netmask 24
    gateway 10.0.0.1

From the Compute node the same file:

auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
    address 10.9.0.249
    netmask 16
    gateway 10.9.255.254
    dns-nameservers 152.66.243.60
iface eth0 inet6 static
    address 2001:738:2001:4031:9:0:249:0
    netmask 80
    gateway 2001:738:2001:4031:9:255:254:0
    dns-nameservers 152.66.243.60
auto eth1
iface eth1 inet static
    address 10.0.0.31
    netmask 24
    gateway 10.0.0.1
auto eth2
iface eth2 inet static
    address 10.0.1.31
    netmask 24

From the Network node:

auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
    address 10.9.0.32
    netmask 16
    gateway 10.9.255.254
    dns-nameservers 152.66.243.60
iface eth0 inet6 static
    address 2001:738:2001:4031:9:0:32:0
    netmask 80
    gateway 2001:738:2001:4031:9:255:254:0
    dns-nameservers 152.66.243.60
auto eth1
iface eth1 inet static
    address 10.0.0.21
    netmask 24
    gateway 10.0.0.1
auto eth2
iface eth2 inet static
    address 10.0.1.21
    netmask 24

# The external network interface
iface eth3 net manual
    up ip link set dev $IFACE up
    down ip link set dev $IFACE down

So, I tried for EXTERNAL_NETWORK_CIDR the 10.9.0.0/16, the 10.9.0.0/24 and a couple of variation, but I can't ping the tenant router gateway IP, which name is EXTERNAL_NETWORK_GATEWAY.

So my question is what should I select for these two IP adresses? And is external interface configured correctly?