Part 5: VMWare NSX EDGE and OSPF Routing Configuration

This post will cover the installation and configuration of NSX EDGE appliance then will configure OSPF between DLR and EDGE for sharing dynamic routed between them.

To make it easy this series is split in to 5 parts.

Part-1 : VMWare NSX Manager 6.4.x Installation and Initial Configuration

Part 2: VMWare NSX 6.4.x Micro-Segmentation Configuration steps

Part 3: VMWare NSX Cluster preparation and Controllers Installation

Part 4: VMWare NSX Logical Switching and DLR Configuration

Part 5: VMWare NSX EDGE and OSPF Routing Configuration

Introduction

Below picture will give you an idea of our setup before moving forward.

Deploy NSX EDGE

Login to vCenter – Network and security – NSX Edge – click on + sign to deploy an EDGE appliance.

Select edge services gateway – Provide Name and hostname as EDGE-01 , select Deploy NSX Edge , select enable HA only if you are using single edge and not ECMP.

Provide login name for edge, password and enable SSH

Select + sign under edge appliances and provide the location where the EDGE appliance will beployed, Typically you will deploy this in EDGE cluster or Production cluster.

Provide the size, as in my case its my lab so compact but based on your environment select it.

Now the important step is the interfaces. In my case my edge will be connected to my physical router with uplink.

provide name for uplink – select uplink – select the distributed port group which has access to physical router, provide IP for this interface – ok

In my case remember my physical router ip is 192.168.2.1 so i am using 192.168.2.2 for edge.

Now create interface to connect to DLR.

remember we connected DLR uplink with transit-LS and gave IP 2 to DLR.

Now provide name – select internal – click change and select Transit-LS logical switch – provide IP 192.168.8.1

As shown below both uplink and internal interfaces are configured.

select uplink and provide the physical router ip and next

click on configure firewall – accept for now and next

review and click finish to deploy edge appliance.

Now as shown below edge appliance is deployed successfully.

Configure OSPF between DLR and EDGE

First we need to configure OSPF in DLR then in Edge.

OSPF in DLR

Double click on DLR – Mange – routing – global configuration – click edit under dynamic routing

Select transit to edge and click ok

Click on Publish changes so that Router ID will be configured.

Now click on OSPF – Edit

Before moving to next step for OSPF configuration in DLR we need couple of things.

  1. Area ID – which is the OSPF area ID used.
  2. Forwarding address – 192.168.8.2 ( this is the interface IP used before while deploying DLR)
  3. Protocol address – 192.168.8.3 ( this is the extra IP required for Dynamic routing configuration)

Select the transit-2-edge , provide the protocol address and forwarding address as shown below.

then remove the default 51 area as shown below.

Click on + sign under area definitions and create new area say 10 and type NSSA

Click on + sign in area to interface mapping

provide the interface-2-edge , select area 10 and ok.

review all the information and click on publish changes.

 

OSPF in EDGE

Now back to network and security – click on edge appliance – enable router ID as shown below as we have done for DLR.

select uplink and click ok.

Publish changes

Now click on OSPF – EDIT

Select enable OSPF – ok

Note: remove area 51 if required.

Click on + sign in areas and create the area 10, provide 10 – NSSA and ok.

Note: this is the same area we had created in DLR also.

Click on + sign in  area to interface mapping – select Transit-2-DLR and area 10- ok

Review the information and click on publish changes.

Now click on route redistribution – select OSPF – ok

Then Click edit (pencil) on route redistribution table – select any- OSPF – static routes and connected – ok as shown below.

Click on publish changes. This will make sure the connected and static routes are pushed to DLR.

I had created two physical server subnets as static routes and pointed them to my physical router as shown below.

Verifying OSPF confiruation

Now login to NSX edge appliance  as admin and password given while creating

provide command  – show ip route

as shown below 172.16.10.1 and other two are showing as O meaning learned with OSPF  and next hop as DLR interface IP 192.168.8.2

Similarly connect to DLR using the protocol address as shown below.

show ip route command will give the static routes created in Edge and connected routes in DLR.

C means connected routes, O means routes learned from OSPF which are static routes created in EDGE.

To test i am trying to ping the DLR interface IP, protocol IP and gateway IP’s from physical subnets.

Note: make sure on your physical router create static routes or configure OSPF between physical router and EDGE for learning subnets created in DLR like 172.16.10.x

Below are the complete list of posts part of the series

Part-1 : VMWare NSX Manager 6.4.x Installation and Initial Configuration

Part 2: VMWare NSX 6.4.x Micro-Segmentation Configuration steps

Part 3: VMWare NSX Cluster preparation and Controllers Installation

Part 4: VMWare NSX Logical Switching and DLR Configuration

Part 5: VMWare NSX EDGE and OSPF Routing Configuration

Hope this post and series is useful. leave your comments below.

Siva Sankar

Siva Sankar works as Solution Architect in Abu Dhabi with primary focus on SDDC, Mobility, Virtualization, VDI, HCI and Network Virtualization products from VMWare, Citrix and Microsoft.

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