Configuring OSPF on the FortiGate units
Three of the routers are designated routers (DR) and one is a backup DR (BDR). This is achieved through the lowest router ID numbers, or OSPF priority settings.
Also each area needs to be configured as each respective type of area - stub, backbone, or regular. This affects how routes are advertised into the area.
To configure OSPF on Router1 - web-based manager
1. Go to Router > Dynamic > OSPF.
2. Enter 10.11.101.1 for the Router ID and select Apply.
3. In Areas, select Create New, set the following information, and select OK.
Area | 1.1.1.1 |
Type | Stub |
Authentication | None |
4. In Networks, select Create New, set the following information, and select OK.
IP/Netmask | 10.11.101.0/255.255.255.0 |
Area | 1.1.1.1 |
5. In Interfaces, select Create New, set the following information, and select OK.
Name | Accounting |
Interface | port1 (internal) |
IP | 10.11.101.1 |
Authentication | None |
6. In Interfaces, select Create New, set the following information, and select OK.
Name | Backbone1 |
Interface | port2 (external1) |
IP | 10.11.110.1 |
Authentication | None |
To configure OSPF on Router2 - web-based manager
1. Go to Router > Dynamic > OSPF.
2. Enter 10.11.102.2 for the Router ID and select Apply.
3. In Areas, select Create New, set the following information, and select OK.
Area | 0.0.0.0 |
Type | Regular |
Authentication | None |
4. In Networks, select Create New, set the following information, and select OK.
IP/Netmask | 10.11.102.2/255.255.255.0 |
Area | 0.0.0.0 |
5. In Networks, select Create New, set the following information, and select OK.
IP/Netmask | 10.11.110.2/255.255.255.0 |
Area | 0.0.0.0 |
6. In Networks, select Create New, set the following information, and select OK.
IP/Netmask | 10.11.111.2/255.255.255.0 |
Area | 0.0.0.0 |
7. In Interfaces, select Create New, set the following information, and select OK.
Name | RnD network |
Interface | port1 (internal) |
IP | 10.11.102.2 |
Authentication | None |
8. In Interfaces, select Create New, set the following information, and select OK.
Name | Backbone1 |
Interface | port2 (external1) |
IP | 10.11.110.2 |
Authentication | None |
9. In Interfaces, select Create New, set the following information, and select OK.
Name | Backbone2 |
Interface | port3 (external2) |
IP | 10.11.111.2 |
Authentication | None |
To configure OSPF on Router3 - web-based manager
1. Go to Router > Dynamic > OSPF.
2. Enter 10.11.103.3 for the Router ID and then select Apply.
3. In Areas, select Create New, set the following information, and then select OK.
Area | 0.0.0.0 |
Type | Regular |
Authentication | None |
4. In Networks, select Create New, set the following information, and select OK.
IP/Netmask | 10.11.102.3/255.255.255.0 |
Area | 0.0.0.0 |
5. In Networks, select Create New, set the following information, and select OK.
IP/Netmask | 10.11.110.3/255.255.255.0 |
Area | 0.0.0.0 |
6. In Networks, select Create New, set the following information, and select OK.
IP/Netmask | 10.11.111.3/255.255.255.0 |
Area | 0.0.0.0 |
7. In Interfaces, select Create New, set the following information, and select OK.
Name | RnD network |
Interface | port1 (internal) |
IP | 10.11.103.3 |
Authentication | None |
8. In Interfaces, select Create New, set the following information, and select OK.
Name | Backbone1 |
Interface | port2 (external1) |
IP | 10.11.110.3 |
Authentication | None |
9. In Interfaces, select Create New, set the following information, and select OK.
Name | Backbone2 |
Interface | port3 (external2) |
IP | 10.11.111.3 |
Authentication | None |
To configure OSPF on Router4 - web-based manager
1. Go to Router > Dynamic > OSPF.
2. Enter 10.11.104.4 for the Router ID and then select Apply.
3. In Areas, select Create New.
4. Set the following information, and select OK.
Area | 2.2.2.2 |
Type | Regular |
Authentication | None |
5. In Networks, select Create New, set the following information, and select OK.
IP/Netmask | 10.11.104.0/255.255.255.0 |
Area | 0.0.0.0 |
6. In Networks, select Create New, set the following information, and select OK.
IP/Netmask | 10.11.111.0/255.255.255.0 |
Area | 0.0.0.0 |
7. In Networks, select Create New, set the following information, and select OK.
IP/Netmask | 172.20.120.0/255.255.255.0 |
Area | 0.0.0.0 |
8. In Interfaces, select Create New, set the following information, and select OK.
Name | Network Admin network |
Interface | port1 (internal) |
IP | 10.11.104.4 |
Authentication | None |
9. In Interfaces, select Create New, set the following information, and select OK.
Name | Backbone2 |
Interface | port2 (external2) |
IP | 10.11.111.4 |
Authentication | None |
10. In Interfaces, select Create New, set the following information, and select OK.
Name | ISP |
Interface | port3 (ISP) |
IP | 172.20.120.4 |
Authentication | None |