Someone can help me?

Extending a public network with RB1000

Eth1: 89.140.132.1/24
Eth2: 89.140.133.1/24
eth3: 89.140.134.1/24

The traffic that comes through the eth1 must contact Eth2 and Eth3
The traffic that comes through the eth2 must contact Eth1 and Eth3
The traffic that comes through the eth3 must contact Eth1 and Eth2