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 Assign multiple subnets to an external network

This approach leverages the addition of on-link routes, which enables a router to host floating IPs from any subnet on an external network regardless of which subnet the primary router IP address comes from. This method does not require the creation of multiple external networks.

To add a subnet to the external network, use the following command template:

$ neutron subnet-create EXT_NETWORK_NAME CIDR

For example:

$ neutron subnet-create my-ext_network 10.0.0.0/29 
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