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    4. Prisma Access (Cloud Management)
    5. Third-Party SD-WAN Integration
    6. Nuage Networks SD-WAN Solution Guide
    7. Configure the Nuage Networks Remote Network

    Configure the Nuage Networks Remote Network

    Configure the remote network between the Nuage Networks SD-WAN and Prisma Access by completing the following workflows:

    Set up the Remote Network Tunnel in Prisma Access

    Complete the following task to configure the remote network connection as a site-to-site IPSec tunnel.
      1. Enter a
        Site Name
         and select a
        Prisma Access Location
         that is close to the remote network location that you want to onboard.
      2. Select the
        IPSec Termination Node
         to use for the remote network.
    2. Configure the primary tunnel.
      1. Set Up
         the primary tunnel.
        When configuring the tunnel, use the validated settings.
      2. Specify a name for the
        IPSec Tunnel
         and click
        Create New
        .
      3. Enter a
        Tunnel Name
        .
      4. Set the
        Branch Device Type
         to
        Other Devices
        .
      5. Set the Authentication type to
        Pre-Shared Key
         and then enter
        Pre-Shared Key
         and
        Confirm Pre-Shared Key
        .
      6. Specify how the peers will identify each other.
        • Set the
          IKE Local Identification
           and
          IKE Peer Identification
           to
          User FQDN (email address)
          .
          Make note of the value that you use for the Peer Identification and the
          Pre-Shared key
           you use; you must match these settings for the Nuage Networks side of the connection in 6 when you Set Up the Remote Network Tunnel in Nuage Networks.
      7. Enable
        IKE Passive Mode
        .
    3. In the Proxy ID section and
      Add
       a default route for all local and remote prefixes.
      Creating this route ensures that all prefixes in the VPN use this IPSec tunnel.
    4. Select
      IPSec Advanced Options
       and
      Create New
       to create a new IPSec crypto profile for the remote network tunnel using the recommended settings.
      Make sure you use IPSec crypto settings that are supported with Prisma Access and Nuage Networks SD-WAN
    5. Select
      IKE Advanced Options
       and
      Create New
       to create a new IKE cryptographic profile for the remote network tunnel.
      Make sure you enable
      IKE NAT Traversal
      . The Nuage Network Services Gateway (NSG) initiates the IKE negotiation, and allows the negotiation to occur even if Nuage Networks side is behind NAT. Refer to the IKE crypto settings that are supported with Nuage for the rest of the settings and make a note of the values you use.
    6. Save
       the tunnel configuration.
    7. Push your configuration changes.
      1. Return to
        Manage
        Service Setup
        Remote Networks
         and select
        Push Config
        Push
        .
      2. Select
        Remote Networks
        .
      3. Push
         your changes.
    8. Find the IP address used on the Prisma Access side of the IPSec tunnel.
      1. Go to
        Manage
        Service Setup
        Remote Networks
         and make a note of the
        Service IP
         address.
        You use this IP address as the peer address when you set up the IPSec tunnel on the Meraki SD-WAN.

    Set Up the Remote Network Tunnel in Nuage Networks

    After you configure the remote network tunnel in Prisma Access, configure the tunnel in Nuage Networks by completing the following task.
    Note that Dead Peer Detection (DPD) is only configured in Nuage Networks. No DPD configuration is required in Prisma Access because the NSG is the DPD initiator and Prisma Access can only reply to requests.
    1. In your organization, create the Gateway using the Nuage Networks IKE gateway object.
      In the
      IP Address
       field, enter the
      Service IP address
       that you retrieved after you completed the setup of the remote network tunnel in Prisma Access (Step 8.
    2. Define the remote subnet for which traffic will be sent to the gateway.
      The IKE gateway connection uses the underlay breakout mechanism as shown in the following diagram:
      All traffic to Prisma Access is through the underlay. If you enable underlay, and if the remote subnet associated with Prisma Access matches the destination IP in the customer packet, then the Nuage Networks SD-WAN sends the packet to Prisma Access. If the destination IP does not match, the SD-WAN sends the packet to internet breakout using underlay breakout and port address translation (PAT) rules.
    3. Specify a default route to the gateway so that the network sends all internet traffic to Prisma Access.
    4. Create an IKE encryption profile.
      This profile must match the values that you specified in the Prisma Access IPSec configuration.
    5. Create an IKE gateway profile.
      1. Enter a
        Name
         for the gateway profile.
      2. Select
        Check anti-replay
        .
      3. Select the
        Service class
        .
      4. Select the
        Gateway
         and
        Encryption Profile
        , using the settings you created for Prisma Access.
      The example in the following screenshot uses one pre-shared key per connection, which means that the IKE Gateway profile won't use a pre-shared key object, and the
      Authentication Method
       field is empty.
    6. Associate the remote network connection with the NSG uplink port.
      You associate the remote network connection with the Nuage Networks NSG at the uplink VLAN level. This association contains an NSG identifier in RFC 822 format and includes the pre-shared key that is used for the connection.
    7. Check the status of the tunnel connection by entering the following command.
      A status of
      UP
       indicates that the connection is successful. 
      A:vsc1# tools vswitch 86.229.176.112 command "nuage-nsg-ike-cli show tunnel-status-summary"
-------------------------------------------------------------------------------
Gateway Name       Local IP          Remote IP       Phase1  Phase2
-------------------------------------------------------------------------------
paloalto           192.168.0.103     3.121.193.101   up      up
-------------------------------------------------------------------------------
    8. Next steps: Learn how Nuage Networks monitors the remote network, and troubleshoot the Nuage Networks remote network connection to Prisma Access, if required.

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