January 2018
Intermediate to advanced
398 pages
7h 54m
English
book
OpenStack Cloud Computing Cookbook - Fourth Edition
by Kevin Jackson, Cody Bunch, Egle Sigler, James Denton
Content preview from OpenStack Cloud Computing Cookbook - Fourth Edition
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Attaching networks to routers
Routers in OpenStack can connect to a single external provider network and one or more tenant networks, as shown in the following diagram:
Figure 4.3
In Figure 4.3, an external provider network provides external connectivity, while tenant networks provide connectivity to virtual machines and other virtual network devices within a project. The router's job is to facilitate end-to-end connectivity using routes and sometimes the NAT via floating IPs.
The commands necessary to attach a network to a router may vary based on network and need:
- Attaching a router to an external network:
openstack router set --external-gateway <network> ...
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