<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">Hi, all.</div><div style="margin: 0in; font-family: Calibri; font-size: 11pt; "><br></div><div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">I have two nodes
installation.</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">Server1 runs
all the components of Nova, Glance,Keystone and Horizon
(OpenStack Dashboard). Server2 runs only nova-compute. </div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">I am using FlatDHCP
mode with a single network interface per
node.</div><div style="margin: 0in; font-family: Calibri; font-size: 11pt; "><br></div><div style="margin: 0in; font-family: Calibri; font-size: 11pt; "><span style="text-decoration: underline;">network config :</span></div><div style="margin: 0in; "><div style="margin: 0in; "><span style="font-family: Calibri; font-size: 15px;">auto lo</span></div><div style="margin: 0in; "><span style="font-family: Calibri; font-size: 15px;">iface lo inet loopback</span></div><div style="margin: 0in; "><span style="font-family: Calibri; font-size: 15px;">auto eth0</span></div><div style="margin: 0in; "><span style="font-family: Calibri; font-size: 15px;">iface eth0 inet static</span></div><div style="margin: 0in; "><span style="font-family: Calibri; font-size: 15px;"> address 10.2.70.106</span></div><div style="margin: 0in; "><span style="font-family: Calibri; font-size: 15px;"> netmask
255.255.255.0</span></div><div style="margin: 0in; "><span style="font-family: Calibri; font-size: 15px;"> network 10.2.70.0</span></div><div style="margin: 0in; "><span style="font-family: Calibri; font-size: 15px;"> broadcast 10.2.70.255</span></div><div style="margin: 0in; "><span style="font-family: Calibri; font-size: 15px;"> gateway 10.2.70.1</span></div><div style="margin: 0in; "><span style="font-family: Calibri; font-size: 15px;"> dns-nameservers 10.3.10.151</span></div><div style="margin: 0in; "><span style="font-family: Calibri; font-size: 15px;">auto br100</span></div><div style="margin: 0in; "><span style="font-family: Calibri; font-size: 15px;">iface br100 inet static</span></div><div style="margin: 0in; "><span style="font-family: Calibri; font-size: 15px;"> address 192.168.3.1</span></div><div
style="margin: 0in; "><span style="font-family: Calibri; font-size: 15px;"> netmask 255.255.255.0</span></div><div style="margin: 0in; "><span style="font-family: Calibri; font-size: 15px;"> bridge_stp off </span></div><div style="margin: 0in; "><span style="font-family: Calibri; font-size: 15px;"> bridge_fd 0 </span></div><div style="font-family: Calibri; font-size: 11pt; "><br></div></div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">Alter I assigned
floating ip to instances , I can ping to instances which running on server 1
but I do it with instances are running
on server 2.</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> </div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> </div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "><span style="text-decoration: underline;">My nova.conf :</span></div><div style="margin: 0in; font-family: Calibri; font-size: 11pt; "><span style="text-decoration: underline;"><br></span></div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">root@cloudca3:/home/cloudca3#
clear</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">root@cloudca3:/home/cloudca3#
cat /etc/nova/nova.conf </div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--dhcpbridge_flagfile=/etc/nova/nova.conf</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--dhcpbridge=/usr/bin/nova-dhcpbridge</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--logdir=/var/log/nova</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--state_path=/var/lib/nova</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--lock_path=/run/lock/nova</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--allow_admin_api=true</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--use_deprecated_auth=false</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--auth_strategy=keystone</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--scheduler_driver=nova.scheduler.simple.SimpleScheduler</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--s3_host=10.2.70.106</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--ec2_host=10.2.70.106</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--rabbit_host=10.2.70.106</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--cc_host=10.2.70.106</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--nova_url=<a href="http://10.2.70.106:8774/v1.1/">http://10.2.70.106:8774/v1.1/</a></div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--routing_source_ip=10.2.70.106</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--glance_api_servers=10.2.70.106:9292</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--image_service=nova.image.glance.GlanceImageService</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--iscsi_ip_prefix=192.168.4</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--sql_connection=mysql://novadbadmin:passwordcloud@127.0.0.1/nova</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--ec2_url=<a href="http://10.2.70.106:8773/services/Cloud">http://10.2.70.106:8773/services/Cloud</a></div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--keystone_ec2_url=<a href="http://10.2.70.106:5000/v2.0/ec2tokens">http://10.2.70.106:5000/v2.0/ec2tokens</a></div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--api_paste_config=/etc/nova/api-paste.ini</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--libvirt_type=kvm</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--libvirt_use_virtio_for_bridges=true</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--start_guests_on_host_boot=true</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--resume_guests_state_on_host_boot=true</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "># vnc specific
configuration</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--novnc_enabled=true</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--novncproxy_base_url=<a href="http://10.2.70.106:6080/vnc_auto.html">http://10.2.70.106:6080/vnc_auto.html</a></div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--vncserver_proxyclient_address=10.2.70.106</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--vncserver_listen=10.2.70.106</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "># network specific
settings</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--network_manager=nova.network.manager.FlatDHCPManager</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--public_interface=br100</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--flat_interface=eth0</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--flat_network_bridge=br100</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--fixed_range=192.168.4.1/27</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">#--floating_range=10.2.70.106/27</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--network_size=32</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--flat_network_dhcp_start=192.168.4.33</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--flat_injected=False</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--force_dhcp_release</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--iscsi_helper=tgtadm</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--connection_type=libvirt</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--root_helper=sudo
nova-rootwrap</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">--verbose</div>
<div style="margin: 0in; text-decoration: underline; font-family: Calibri; font-size: 11pt; "> </div>
<div style="margin: 0in; text-decoration: underline; font-family: Calibri; font-size: 11pt; ">Check with "ip addr " command :</div>
<div style="margin: 0in; text-decoration: underline; font-family: Calibri; font-size: 11pt; "> </div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">3: virbr0:
<NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN </div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> link/ether 4e:08:87:24:c5:78 brd
ff:ff:ff:ff:ff:ff</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> inet 192.168.122.1/24 brd 192.168.122.255
scope global virbr0</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">5: br100:
<BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP </div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> link/ether 50:e5:49:14:d6:f9 brd
ff:ff:ff:ff:ff:ff</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> inet 192.168.4.33/27 brd 192.168.4.63 scope
global br100</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> inet 192.168.3.1/24 brd 192.168.3.255 scope
global br100</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> inet 10.2.70.106/24 brd 10.2.70.255 scope
global br100</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> inet 10.2.70.129/32 scope global br100</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> inet 10.2.70.130/32 scope global br100</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> inet 10.2.70.131/32 scope global br100</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> inet6 fe80::4ca2:a8ff:fe57:a569/64 scope
link </div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> valid_lft forever preferred_lft forever</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "><br></div><div style="margin: 0in; font-family: Calibri; font-size: 11pt; "><span style="font-size: 11pt; "> </span><br></div>
<div style="margin: 0in; text-decoration: underline; font-family: Calibri; font-size: 11pt; ">Nat rule :</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">Chain
nova-network-PREROUTING (1 references)</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> pkts bytes target prot opt in out
source
destination </div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> 0
0 DNAT tcp -- * *
0.0.0.0/0
169.254.169.254 tcp dpt:80
to:10.2.70.106:8775</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> 3363
279K DNAT all -- * *
0.0.0.0/0
10.2.70.129
to:192.168.4.34</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> 5
240 DNAT all -- * *
0.0.0.0/0
10.2.70.130
to:192.168.4.41</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> 0
0 DNAT all -- * *
0.0.0.0/0
10.2.70.131
to:192.168.4.40</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> </div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> </div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">Chain
nova-network-float-snat (1 references)</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> pkts bytes target prot opt in out
source
destination </div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> 11
660 SNAT all -- * *
192.168.4.34
0.0.0.0/0
to:10.2.70.129</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> 2
120 SNAT all -- * *
192.168.4.41
0.0.0.0/0
to:10.2.70.130</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> 5
300 SNAT all -- * *
192.168.4.40
0.0.0.0/0
to:10.2.70.131</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; ">Chain
nova-network-OUTPUT (1 references)</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> pkts bytes target prot opt in out
source
destination </div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> 17
1020 DNAT all -- * *
0.0.0.0/0
10.2.70.129
to:192.168.4.34</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> 0
0 DNAT all -- * *
0.0.0.0/0
10.2.70.130
to:192.168.4.41</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> 0
0 DNAT all -- * *
0.0.0.0/0
10.2.70.131
to:192.168.4.40</div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> </div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> </div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> </div>
<div style="margin: 0in; font-family: Calibri; font-size: 11pt; "> </div></div></div></body></html>