[Openstack] How to route to instance from external router

Wilson Kwok leiw324 at gmail.com
Mon May 4 16:38:37 UTC 2015


Hello all,

I'm testing Openstack at home, I already success create instance
with private IP adddress and floating IP address, but I have question how
to let external user access to instance, and intance access to internet,
the following description is my network settings:

1. My home network is 172.28.0.0/16 and router gateway is 172.28.0.254
2. Private network for instance is 10.0.47.0/24
3. Bridge interface named br100 with eth0 is 172.28.0.1

1. My concept is add static route (destination 10.0.47.0/24 via 172.28.0.1
Bridge interface IP) and port forward in router, let user can reach
instance.

2. Because instance private IP address assigned by dnsmasq, so I think use
the following nova-network command can access to internet:

nova-manage network create private --fixed_range_v4=10.0.47.0/24
--num_networks=1
--bridge=br100 --bridge_interface=eth0 --network_size=255

Please give me idea, thanks.
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