Hi all, I just successfully installed openstack on my office computer. I follow all-in-one packstack and able to access dashboard. After installation this is my pc network interface config:- My office IT provide me static IP of 192.168.100.15 (default network is by DHCP). Interface br-ex and the IP 172.24.4.0/24 is automatic created after successfully deployed openstack.

br-ex: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
    inet 172.24.4.1  netmask 255.255.255.0  broadcast 0.0.0.0
    inet6 fe80::b81a:34ff:fe0f:c94a  prefixlen 64  scopeid 0x20<link>
    ether ba:1a:34:0f:c9:4a  txqueuelen 1000  (Ethernet)
    RX packets 11  bytes 664 (664.0 B)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 8  bytes 656 (656.0 B)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
    inet 192.168.100.15  netmask 255.255.255.0  broadcast 192.168.100.255
    inet6 fe54::231:bfc:fe11:cf79  prefixlen 64  scopeid 0x20<link>
    ether 00:21:1c:31:cc:19  txqueuelen 1000  (Ethernet)
    RX packets 270483  bytes 336811530 (321.2 MiB)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 158065  bytes 14318385 (13.6 MiB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

openstack neutron list
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private - 10.0.0.0/24
public - 172.24.4.0/24
From dashboard i can see public network topology. 

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To access my office lan and internet have to go thru network 192.168.100.15/24 which over eth1. So how to set so that openstack can also access Lan/internet. Seems like I need to create new subnet and router. Appreciate someone to guide me the right way to accomplish it. Thank you for your help and attention. Thank you