Configuring a site-to-site VPN tunnel with Coro Network and Cisco Meraki¶

As part of a virtual office, Coro includes the ability for customers to configure VPNs together with site-to-site VPN tunnels.

This guide describes how to establish a site-to-site VPN tunnel between Coro and a Cisco Meraki appliance through the Cisco Meraki platform, and how to configure Coro to integrate with Cisco Meraki's firewall.

To configure a Cisco Meraki site-to-site VPN tunnel, complete the following processes:

1. Configure Cisco Meraki to allow traffic from inside and outside the network

2. Configure Coro to integrate with Cisco Meraki's firewall

Prerequisites¶

Before you start, make sure you have the following:

• Access as an admin user to the Coro console for your workspace

• An active subscription (or trial) for the Coro Network module

• Access to the Cisco Meraki Dashboard

Configuring Cisco Meraki¶

Configure Cisco Meraki to allow traffic from inside and outside the network:

1. Sign into your Cisco Meraki Dashboard.

2. Select Network:

   

3. Select your preferred VMX appliance:

   

4. Go to Security & SD-WAN > Appliance status:

   

5. Select Uplink and note the PUBLIC IP address value:

   

6. Go to Security & SD-WAN > Addressing and VLANs:

   

7. Under Routing, select the LAN Config table:

   

   The Configure Single LAN dialog appears:

   

8. Note the Subnet value:

   

9. Go to Security & SD-WAN > Firewall:

   

10. For both Inbound rules and Outbound rules, make sure Source is set to Any for the Allow policy. Leave the Deny policy at their default values:

    

    Important

    If your setup requires changing these settings, ensure they do not block Coro's IP address.

11. Go to Security & SD-WAN > Site-to-site VPN:

    

12. Configure Site-to-site VPN and VPN settings options:

    • Type: Select Hub (Mesh):

      

    • Local networks: Set VPN mode to "Enabled" for the Main subnet:

      

    • NAT Traversal: Select Automatic:

      

    • Remote VPN Participants: Leave as default.

    • BGP & OSPF settings: Leave as default.

13. Configure Organization-wide settings:

    1. Select Add a peer:

       A new row is added to the Non-Meraki VPN peers table:

       

    2. Enter the following settings:

       • Name: Enter a suitable peer connection name.

       • IKE Version: Select "IKEv2".

       • IPSec Policies: Select the Default link.

         An IPsec policy configuration dialog appears:

         

         1. In the Phase 1 section, make sure your settings match the following:

            Field	Value
            Encryption	Select "AES-256"
            Authentication	Select "SHA256"
            Pseudo-random Function	Select "SHA256"
            Diffie-Hellman group	Select "14"
            Lifetime (seconds)	Enter "28800"

         2. In the Phase 2 section, make sure your settings match the following:

            Field	Value
            Encryption	Select "AES-256" and "AES-128"
            Authentication	Select "SHA256" and "SHA1"
            PFS group	Select "Off"
            Lifetime (seconds)	Enter "28800"

         3. To save your settings, select Update:

            The IPSec Policies link now displays as Custom:

            

       • Public IP/Hostname: Enter the Coro public IP address shown in the Coro console.

         To retrieve the Coro public IP address:

         1. Sign into your Coro workspace.

         2. Select Control Panel:

            

         3. Select Network:

            

            The Coro public IP address displays on the Virtual Office page:

            

       • Local ID: Enter the public IP address of Cisco Meraki's VMX appliance retrieved here.

       • Remote ID: Enter the Coro public IP address retrieved for Public IP/Hostname.

       • Private subnets: Enter "10.8.0.0/16, 10.9.0.0/16".

       • Preshared key: Enter a shared password (secret) or generate a new one.

       • Availability: Select "All networks".

       • Inbound firewall logging: Select Enable to allow for more granular control over network security and traffic management.

       • Site-to-site outbound firewall: Make sure the policy is set to "Allow":

         

14. Select Save Changes to save your settings:

    

    Allow one to two minutes for your changes to take effect.

Configuring Coro Network¶

Configure Coro with details of your site-to-site tunnel and firewall:

1. Sign into your Coro workspace.

2. Select Control Panel:

   

3. Select Network:

   

4. Select the Settings tab:

   

5. Select + ADD to add a new site-to-site tunnel configuration:

   

6. Configure your Site details:

   Field	Value
   Site name	Enter a suitable name for your site-to-site tunnel Special characters and spaces are not supported
   Site description	Enter a suitable short description for the tunnel Special characters and spaces are not supported
   Remote gateway IP	Enter Cisco Meraki's public IP address obtained here
   Remote network IP	Enter Cisco Meraki's subnet obtained here
   Preshared key	Enter the preshared key used here
   Lifetime key	Enter "28800"

7. In the same dialog, configure the Firewall settings:

   Field	Value
   Remote Network Mask	Enter Cisco Meraki's subnet obtained here
   IKE Version	Select "IKEv2"
   Phase 1 Encryption	Select "AES256-SHA256-D14"
   Phase 2 Encryption	Select "AES256-SHA256-D14"
   Aggressive Mode	Select "No"

8. To save your configuration, select SAVE.