devstack

Not able to ssh the launched instance

Asked by harikrishna

I installed devstack on centos 6.4 os server with help of the OpenStack on Hardware(all in one tutorial).
I have two physical interfaces in the server.
em1 have connectivity and static ip.
em2 have no wire connectivity.
I downloaded the devstack code and edited localrc file with below properties.

        HOST_IP=202.65.129.27
        #custom config
        FLOATING_RANGE=202.65.129.24/29
         FIXED_RANGE=10.11.12.0/27
         FIXED_NETWORK_SIZE=32
          FLAT_INTERFACE=em2

Finally it's installed properly and able to login into the dashboard.

when i launched the instance by default getting fixed ip like(10.11.12.2)
When i associated the floating ip also getting assigned properly like (192.168.253.1)
But i am not able to connect the instance. Not even ping is also not working.

nova list
+--------------------------------------+----------------+--------+------------+-------------+-----------------------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+----------------+--------+------------+-------------+-----------------------------------+
| bcaceaec-0eb0-4d8c-a5ca-c090bd5c1ed6 | bim-15-test-vm | ACTIVE | None | Running | private=10.11.12.2, 192.168.253.1 |
+--------------------------------------+----------------+--------+------------+-------------+-----------------------------------+

ping 192.168.253.1
PING 192.168.253.1 (192.168.253.1) 56(84) bytes of data.
ping: sendmsg: Operation not permitted

brctl show
bridge name bridge id STP enabled interfaces
br100 8000.782bcb5f5af2 no em2
                                                        vnet0
virbr0 8000.525400610089 yes virbr0-nic

This is the configuration details in /etc/nova/nova.conf

[DEFAULT]
firewall_driver = nova.virt.libvirt.firewall.IptablesFirewallDriver
compute_driver = libvirt.LibvirtDriver
flat_interface = em2
flat_network_bridge = br100
vlan_interface = eth0
public_interface = br100
network_manager = nova.network.manager.FlatDHCPManager
default_floating_pool = public
fixed_range =

Lot of other properties is there but i think these details will be useful for analyze the problem.
I am new to this networking concepts if anything messed up. Can you please suggest me how to do.

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ZhiQiang Fan (aji-zqfan) said : 		#1

can you ping any other ip in your environment? you should check `ping: sendmsg: Operation not permitted`

if previous step is ok, you should check security-groups, and the security-group rules, to enable ping reply and ssh service,
icmp -1 -1 and tcp 22 22 should be open

if previous step is ok, you can access your instance via VNC Console in the dashbaord, check your instance's ip

if previous step is ok, ping the host ip from the instance to find the problem

good luck

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