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chewy85500
Enthusiast
Enthusiast

External Network with VIO 3.1 and NSX

After a successfull deployment with VIO 3.1 and NSX, I was looking for the external network to provide floatings IPs to instances but it seems not be created by default.

I didn't find any information about the creation of this external network with NSX in VIO documentation.

Which type of physical network must be used with NSX ?

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6 Replies
admin
Immortal
Immortal

did you start taking a look at:

You can attach a floating IP address to an instance in addition to the fixed IP address that is assigned when it is created. Unlike fixed IP addresses, you can modify floating IP address associations at any time, regardless of the state of the instances involved.

Procedure

  1. Log in to the VMware Integrated OpenStack dashboard.
  2. Select the project from the drop-down menu in the title bar.
  3. Select Project > Compute > Access & Security.
  4. Click the Floating IPs tab, and click Allocate IP to Project.
  5. Choose the pool from which to pick the IP address and click Allocate IP.
  6. Click Associate in the Floating IPs list and configure the floating IP associations settings.
    OptionDescription
    IP AddressClick the plus sign to add an IP address.
    Ports to be associatedSelect a port from the list. The list shows all the instances with their fixed IP addresses.
  7. Click Associate.
  8. (Optional) : To disassociate a floating IP address from an instance, click the Floating IPs tab, and click Disassociate in the Actions column for the IP address. .
  9. To release the floating IP address back into the pool of addresses, click More and select Release Floating IP.
  10. Click the Floating IPs tab and select the IP address.
  11. Click Release Floating IPs.

(copied from documentation)

Please, let me know what it is not clear.

Cheers,

Domenico

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chewy85500
Enthusiast
Enthusiast

Before being able to attach a floating IP, I have to create manually the external network, as explained in this link: https://blogs.vmware.com/openstack/vmware-integrated-openstack-video-series-working-with-networks/

After this action, a floating IP pool was available.

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admin
Immortal
Immortal

cool!

so... issue fixed! Smiley Wink

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chewy85500
Enthusiast
Enthusiast

Yes Smiley Happy

By default, after a deployment, the floating IP pool should be available without any action ?

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admin
Immortal
Immortal

sorry for the late reply!

floating ip address should be available without any action if the external network has been correctly configured.

The following is an external network example:

Status Active

Admin State UP

Shared No

External Network Yes

MTU Unknown

Provider Network

Network Type: portgroup

Physical Network: dvportgroup-152

and the following a subnet:

Subnetpool None

IP version IPv4

CIDR xx.xx.32.0/20

IP allocation pool Start xx.xx.xx.219 - End xx.xx.xx.222

Gateway IP xx.xx.xx.254

DHCP Enable No

Additional routes None

DNS name server xx.xx.xx.xxx

Please, take a look at the following thread too:$$$ Offered for vExpert ! it can be useful.

Cheers,

Domenico

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rpellet
VMware Employee
VMware Employee

You should also check out this document.

VIO4.0&NSX - Network Topologies Configuration Guide

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