Configuration example: Multiple connections to the Internet

NAT/Route mode installation

 

 

Using the CLI

1Add a ping server to port2.

set system interface port2 config detectserver 1.1.1.1 gwdetect enable

2Add a ping server to port3.

set system interface port3 config detectserver 2.2.2.1 gwdetect enable

Destination based routing examples

This section describes the following destination-based routing examples:

Primary and backup links to the Internet

Load sharing

Load sharing and primary and secondary connections

Primary and backup links to the Internet

Use the following procedure to add a default destination-based route that directs all outgoing traffic to Gateway 1. If Gateway 1 fails, all connections are re-directed to Gateway 2. Gateway 1 is the primary link to the Internet and Gateway 2 is the backup link.

1Go to System > Network > Routing Table.

2Select New.

Destination IP: 0.0.0.0

Mask: 0.0.0.0

Gateway #1: 1.1.1.1

Gateway #2: 2.2.2.1

Device #1: port2

Device #2: port3

Select OK.

Using the CLI

1Add the route to the routing table.

set system route number 0 dst 0.0.0.0 0.0.0.0 gw1 1.1.1.1 dev1 port2 gw2 2.2.2.1 dev2 dmz

Table 11: Route for primary and backup links

Destination IP

Mask

Gateway #1

Device #1

Gateway #2

Device #2

 

 

 

 

 

 

0.0.0.0

0.0.0.0

1.1.1.1

port2

2.2.2.1

port3

 

 

 

 

 

 

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Fortinet Inc.

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Fortinet 400 manual Destination based routing examples, Primary and backup links to the Internet, Using the CLI