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Taikun OCP Guide

Table of Contents

Floating IP port forwarding

Floating IP port forwarding enables users to forward traffic from a
TCP/UDP/other protocol port of a floating IP to a TCP/UDP/other protocol
port associated to one of the fixed IPs of a Neutron port. This is
accomplished by associating port_forwarding sub-resource to
a floating IP.

CRUD operations for port forwarding are implemented by a Neutron API
extension and a service plug-in. Please refer to the Neutron API
Reference documentation for details on the CRUD operations.

Configuring floating IP
port forwarding

To configure floating IP port forwarding, take the following

  • Add the port_forwarding service to the
    service_plugins setting in
    /etc/neutron/neutron.conf. For example:

    service_plugins = router,segments,port_forwarding
  • Set the extensions option in the
    [agent] section of /etc/neutron/l3_agent.ini
    to include port_forwarding. This has to be done in each
    network and compute node where the L3 agent is running. For example:

    extensions = port_forwarding


The router service plug-in manages floating IPs and
routers. As a consequence, it has to be configured along with the
port_forwarding service plug-in.


After updating the options in the configuration files, the
neutron-server and every neutron-l3-agent need to be restarted for the
new values to take effect.

After configuring floating IP port forwarding, the
floating-ip-port-forwarding extension alias will be
included in the output of the following command:

$ openstack extension list --network