# Configuring Cascading Network Gateway Connections Using Predefined Network Topologies - Client Type is Laptops

You can use predefined network topologies to configure cascading network gateway connections for client type of laptops.

Note

The CommCell entities can be any combination of CommServe computer, MediaAgent, and client.

## Before You Begin

- Create the following four client groups to be used in the network gateway topology:

  - An infrastructure group, which will contain the CommServe server and internal MediaAgents.

  - A client group, which will contain all clients.

  - Two network gateway client groups, one that resides near the infrastructure machines group and one that resides near the laptops group.

- You must have administrative management permissions on the client groups that you plan to use in the network topology instance.

- If you have clients in your network gateway client group that belong to other client groups that are not designated for network gateway connections, then the network gateway settings on the clients might be lost. To prevent this issue, perform the following steps:

  - Access the network properties of the client, and on the Network Route Configuration tab, select the Configure Network Route Settings check box, click Advanced, and then click OK to the warning message.

  - On the Options tab, select the This computer is in DMZ and will work as a network gateway check box.

- Note the following regarding port requirements:

  - Laptops should be able to open connection to the network gateway on the tunnel port which resides on the laptops end.

  - The laptop side's network gateway should be able to open connection to infrastructure computer side's network gateway on the tunnel port.

  - Infrastructure computers should be able to open connections to network gateways on the tunnel port that resides on the infrastructure computer's end.

## Procedure

1. From the Command Center navigation pane, go to Manage > Network.

2. Click Network topologies.

   The Network topologies page appears.

3. Click Add topology.

   The Add topology page appears.

4. In the Name box, enter a name for topology.

5. For Client type, select Laptops.

6. From the Topology Type list, select Cascading Gateways.

7. Click Next.

8. Perform the following steps:

   Note

   See Using a Smart Network Topology When Setting Up Network Connections.

   1. In the Laptops list, select a laptop group that will initiate connections to the network gateway group that resides near the laptops group.

   2. Optional: Click the advanced toggle to edit the following options:

      - Tunnel port. Set this to Default (8403), or enter another port number.

      - Keep-alive interval. The interval (in seconds) for sending keep-alive packets, to maintain the session if backup traffic has an extended pause. Set this to 180 (default), or enter another interval. To avoid idle session timeouts on cloud-based clients, set the interval to 200 seconds or less.

   3. In the Laptop gateways list, select the client group that you want to designate as the network gateway group that resides near the laptops group.

   4. Optional: Click the advanced toggle next to the Laptop gateways list to edit the Tunnel port and Keep-alive interval options, as described above.

   5. In the Network gateways list, select the client group that you want to designate as the network gateway group near the Infrastructure group.

   6. Optional: Click the advanced toggle next to the Network gateways list to edit the Tunnel port and Keep-alive interval options, as described above.

   7. In the Backup infrastructure list, select a client group that will initiate connections to the network gateway group near the Infrastructure group.

   8. Optional: Click the advanced toggle next to the Backup infrastructure list to edit the Tunnel port and Keep-alive interval options, as described above.

9. Click Next.

10. Optional: Edit the following advanced options:

    - Move the Encrypt traffic toggle key to the right to encrypt network traffic (HTTPS).

    - Select Encrypted, Authenticated, Regular, or Raw from the tunnel protocol list.

    - Select the Parallel data transfer streams for long distance networks (default value is 1, and maximum value is 8).

11. Click Submit.

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