Dynamic Routing: How To

Note

To keep this tutorial short, a configuration is only added a single time. For example, the configuration of Site A and Site B are identical beside one octet in the IP addresses. Also both routers have the same configuration except the Network address of the uplink and the client network.

Situation

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We have two sites (Site A and Site B) which are connected via a layer 2 VPN. Each site has two additional routers, which are connected to the edge router and with each oder. On those routers, the clients are attached.

Configuration

In this setup, OSPF is used. All routers belong to the area 0.0.0.0 and no prefix lists are used.

Core Router of Site A

General Settings:

Setting

Value

Enable

Checked

Advertise Default Gateway

Checked

Passive Interfaces

Empty

Route Redistribution

Empty

Networks:

Network

Network Mask

192.168.0.0

30

192.168.1.0

30

192.168.1.4

30

Left Floor Router of Site A

General Settings:

Setting

Value

Enable

Checked

Advertise Default Gateway

Unchecked

Passive Interfaces

Interface name of 10.1.1.0

Route Redistribution

Empty

Networks:

Network

Network Mask

10.1.1.0

24

192.168.1.4

30

192.168.1.8

30