1.2 Corente Services Gateway Configurations

Corente Services Gateways provide two different, but compatible, configurations.

Inline Configuration

Inline configurations require two Ethernet interfaces. One interface is connected to your internal network. The other interface is connected to an external network. In most cases the external network is the public Internet.

Inline configurations let you use a Corente Services Gateway to handle multiple network functions, such as acting as a firewall or providing DHCP services.

If three or more Ethernet interfaces are available to the Corente Services Gateway you can use inline configurations to:

  • Implement a demilitarized zone (DMZ) on your network.

    A DMZ provides a secure layer between a private LAN and the public Internet or WAN. Servers that devices can access from both the private LAN and the public Internet, such as mail or web servers, usually reside on the DMZ.

  • Provide access to a backup WAN connection (Dual WAN).

    Dual WAN capabilities let you set up automatic WAN failover between a primary WAN connection and a secondary WAN connection. However, a DUAL WAN configuration does not provide load balancing between two WAN connections.

The following diagram illustrates an inline configuration:

The image is a block graphic showing a typical network layout when using the inline configuration placement option for the Corente Services Gateway.

Peer Configuration

Peer configurations require one Ethernet interface that enables a Corente Services Gateway to:

  • Operate with a private IP address

  • Traverse firewalls enabled for Internet Connection Sharing (ICS) as well as network routers and proxies

Peer configurations let Corente Services Gateways handle Corente Services traffic while other devices on your network handle all other traffic and external access. For this reason, you should use peer configurations only if you install Corente Services Gateways behind firewalls.

The following diagram illustrates a peer configuration:

The image is a block graphic showing a typical network layout when using the peer configuration placement option for the Corente Services Gateway.