Instances are unable to receive ip from dhcp in Ice house openstack.
I have created two node openstack cloud with controller and network in one node and compute on other node. Installed Centos6.5 and has used packstack to install openstack everything went well, initially instance use to get IP address later I modified from vxlan to gre in neutron configuration after that instance are not able to get ip and even before and after the instance is not reacheable from controller or compute. I don't know whether gre with ml2 plugin requires vlan information and more over even after changing from vxlan to gre in configuration after several restarts of nodes and services still it is showing as vxlan. Kindly help me on this.
[root@compute01 ~(keystone_admin)]# neutron agent-show 72339e80-d213-4104-8e73-f24be77b8bf0
+---------------------+------------------------------------------+
| Field | Value |
+---------------------+------------------------------------------+
| admin_state_up | True |
| agent_type | Open vSwitch agent |
| alive | False |
| binary | neutron-openvswitch-agent |
| configurations | { |
| | "tunnel_types": [ |
| | "vxlan" |
| | ], |
| | "tunneling_ip": "147.128.148.156", |
| | "bridge_mappings": {}, |
| | "l2_population": false, |
| | "devices": 2
==========================================================================
[root@controller ~]# cat /etc/neutron/plugins/ml2/ml2_conf.ini |grep -i gre |grep -v "#"
type_drivers = gre
tenant_network_types = gre
[ml2_type_gre]
tunnel_type = gre
[root@controller ~]#
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