Basic RIP example
In this example, a medium-sized network is configured using RIPv2.
-
Two core routers, RIP Router2 and RIP Router3, connect to the ISP router for two redundant paths to the internet.
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Two other routers, RIP Router1 and RIP Router4, connect to the two core routers and to different local networks.
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The ISP router is using RIP for its connections to the core routers, and redistributes its default route to the network - that is, default route injection is enabled.
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The ISP router uses NAT and has a static route to the internet. None of the other routers use NAT or static routes.
All of the FortiGate routers are configured as shown, using netmask 255.255.255.0. Firewall policies have been configured to allow the required traffic to flow across the interfaces.
|
Router |
Interface |
Interface name |
IP address |
|---|---|---|---|
|
Router1 |
port1 |
LoSales |
10.11.101.101 |
|
port2 |
vd12link0 |
10.11.201.101 |
|
|
port3 |
vd13link0 |
10.11.202.101 |
|
|
Router2 |
port1 |
vd23link0 |
10.12.101.102 |
|
port2 |
vd12link1 |
10.11.201.102 |
|
|
port3 |
vd42link1 |
10.14.201.102 |
|
|
port4 |
vdr2link1 |
172.20.120.102 |
|
|
Router3 |
port1 |
vd23link1 |
10.12.101.103 |
|
port2 |
vd13link1 |
10.11.202.103 |
|
|
port3 |
vd43link1 |
10.14.202.103 |
|
|
port4 |
vdr3link1 |
172.20.121.103 |
|
|
Router4 |
port1 |
LoAccounting |
10.14.101.104 |
|
port2 |
vd42link0 |
10.14.201.104 |
|
|
port3 |
vd43link0 |
10.14.202.104 |
|
|
ISP Router |
port1 |
port1 |
To internet |
|
port2 |
vdr2link0 |
172.20.120.5 |
|
|
port3 |
vdr3link0 |
172.20.121.5 |
After configuring each router, you can check the status of the connections by viewing the RIP database, RIP interfaces, and routing table. See Verifying the configuration.
After the network is configured, you can test it to ensure that when network events occur, such as a downed link, routing updates are triggered and converge as expected. See Testing the configuration and routing changes.
ISP router
To configure the ISP Router in the GUI:
-
Go to Network > RIP.