Configure Secure Tunnel

This section provides step-by-step instructions on how to configure secure tunnels for GigaVUE Cloud Suite for Nutanix.

Prerequisites

While creating Secure Tunnel, you must provide the following details:

■   SSH key pair
■   CA certificate

Notes

■   Protocol version IPv4 and IPv6 are supported.
■   If you wish to use IPv6 tunnels, your GigaVUE‑FM and the fabric components version must be 6.6.00 or above. For UCT-V agents with version lower than 6.6.00, if secure tunnel is enabled in the monitoring session, secure mirror traffic will be transmitted over IPv4, regardless of IPv6 preference.

Configure Secure Tunnel from GigaVUE V Series Node 1 to GigaVUE V Series Node 2

You can create secure tunnel in the following ways:

■   Between GigaVUE V Series Node 1 to GigaVUE V Series Node 2
■   From GigaVUE V Series Node 1 to multiple GigaVUE V Series nodes.

You must have the following details before you start the configuration of secure tunnel from GigaVUE V Series Node 1 to GigaVUE V Series Node 2:

■   IP address of the tunnel destination endpoint (GigaVUE V Series Node 2).
■   SSH key pair (pem file).

To configure secure tunnel from GigaVUE V Series Node 1 to GigaVUE V Series Node 2, refer to the following steps:

S. No

Task

 Refer to

1.

Upload a Certificate Authority (CA) Certificate

You must upload a Custom Certificate to UCT-V Controller for establishing a connection between the GigaVUE V Series Node.

To upload the CA using GigaVUE-FM follow the steps given below:

  1. Go to Inventory > Resources > Security > CA List.
  2. Click Add, to add a new Certificate Authority. The Add Certificate Authority page appears.
  3. Enter or select the following information.

    Field

    		Action

    Alias

    Alias name of the CA.

    File Upload

    Choose the certificate from the desired location.

  4. Click Save.
  5. Click Deploy All.

For more information, refer to the section Adding Certificate Authority

2.

Upload a SSL Key

You must add a SSL key to GigaVUE V Series node. To add SSL Key, follow the steps in the section SSL DecryptSSL Decrypt

3

Create a secure tunnel between UCT-V and GigaVUE V Series Node 1.

You should enable the secure tunnel feature to establish a connection between the UCT-Vand GigaVUE V Series node 1. To enable the secure tunnel feature follow these steps:

1. In the Edit Monitoring Session page, click Options. The Apply template page appears.
2. Enable the Secure Tunnel button. You can enable secure tunnel for both mirrored and precrypted traffic.

4.

Select the added SSL Key while creating a monitoring domain.

Select the added SSL Key while creating a monitoring domain and configuring the fabric components in GigaVUE‑FM in GigaVUE V Series Node 1.

You must select the added SSL Key in GigaVUE V Series Node 1.

To select the SSL key, follow the steps in the section Configure GigaVUE Fabric Components in GigaVUE-FM

5.

Select the added CA certificate while creating the monitoring domain

You should select the added Certificate Authority (CA) in UCT-V Controller. To select the CA certificate, follow the steps in the section Configure GigaVUE Fabric Components in GigaVUE-FM

6

Create an Egress tunnel from GigaVUE V Series Node 1 with tunnel type as TLS-PCAPNG while creating the monitoring session.

You must create a tunnel for traffic to flow out from GigaVUE V Series Node 1 with tunnel type as TLS-PCAPNG while creating the monitoring session. Refer to Create Ingress and Egress Tunnel for more detailed information on how to create tunnels.

To create the egress tunnel, follow these steps:

1. After creating a new monitoring session, or click Actions > Edit on an existing monitoring session, the GigaVUE-FM canvas appears.
2. In the canvas, select New > New Tunnel, drag and drop a new tunnel template to the workspace. The Add Tunnel Spec quick view appears.
3. On the New Tunnel quick view, enter or select the required information as described in the following table:

Field

 Action

Alias

The name of the tunnel endpoint.

Description

The description of the tunnel endpoint.

Type

Select TLS-PCAPNG for creating egress secure tunnel

Traffic Direction

Choose Out (Encapsulation) for creating an egress tunnel from the V Series node to the destination. Select or enter the following values:

o MTU- The default value is 1500 for Azure.

Note:  Increasing the MTU value will impact the performance and may even result in packet loss. By default, Azure VNet will attempt to fragment jumbo frames even if sending and receiving VMs are configured with a higher MTU.

o Time to Live - Enter the value of the time interval till which the session needs to be available. The value ranges from 1 to 255. The default value is 64.
o DSCP - Enter the Differentiated Services Code Point (DSCP) value.
o Flow Label - Enter the Flow Label value.
o Source L4 Port- Enter the Souce L4 Port value
o Destination L4 Port - Enter the Destination L4 Port value.
o Flow Label
o Cipher- Only SHA 256 is supported.
o TLS Version - Select TLS Version1.3.
o Selective Acknowledgments - Choose Enable to turn on the TCP selective acknowledgments.
o SYN Retries - Enter the value for number of times the SYN has to be tried. The value ranges from 1 to 6.
o Delay Acknowledgments - Choose Enable to turn on delayed acknowledgments.

Remote Tunnel IP

Enter the interface IP address of the GigaVUE V Series Node 2 (Destination IP).
4. Click Save.

7.

Select the added SSL Key while creating a monitoring domain and configuring the fabric components in GigaVUE‑FM in GigaVUE V Series Node 2

You must select the added SSL Key in GigaVUE V Series Node 2. To select the SSL key, follow the steps in the section Configure GigaVUE Fabric Components in GigaVUE-FM

8

Create an ingress tunnel in the GigaVUE V Series Node 2 with tunnel type as TLS-PCAPNG while creating the monitoring session for GigaVUE Node 2.

You must create a ingress tunnel for traffic to flow in from GigaVUE V Series Node 1 with tunnel type as TLS-PCAPNG while creating the monitoring session.

 

To create the ingress tunnel, follow these steps:

1. After creating a new monitoring session, or click Actions > Edit on an existing monitoring session, the GigaVUE-FM canvas appears.
2. In the canvas, select New > New Tunnel, drag and drop a new tunnel template to the workspace. The Add Tunnel Spec quick view appears.
3. On the New Tunnel quick view, enter or select the required information as described in the following table:

Field

 Action

Alias

The name of the tunnel endpoint.

Description

The description of the tunnel endpoint.

Type

Select TLS-PCAPNG for creating egress secure tunnel.

Note:  If you are enabling Secure tunnel in Monitoring Session with traffic acquisition method as UCT-V, you must not create TLS-PCAPNG Tunnel with direction IN, Destination L4 port 11443, and GigaVUE V Series Node version 6.5 and above.

Traffic Direction

Choose In (Decapsulation) for creating an ingress tunnel that receives traffic from V Series node 1. Select or enter the values as described in Step 6.

IP Version

The version of the Internet Protocol. IPv4 and IPv6 are supported.

Remote Tunnel IP

Enter the interface IP address of the GigaVUE V Series Node 1 (Destination IP).
4. Click Save.