Hello everyone. I’ve got a big proble, I want to create in VirtualBox 10 machines and run them at the same time to simulate a small network.

All of these virtual machines are running on linux debian. 4 of them are routers and the rest of them are “users”.
Two of these Quagga routers (router A and B) communicate to exterior networks (x for A and y for B). These routers have activated the daemons bgpd, ospfd and of course, zebra.
The other two Quagga routers (router C and D) are connected to 3 users each, and they have activated the daemons ospfd and zebra.
The network looks like this:

3 users---D--A ------x network
............. | .. |......................
3 users---C-—B------y network

How can I achieve this? I’ve tried to configure the ospfd.conf, bgpd.conf and zebra.conf files in /etc/quagga/ but havnt got any positive result. Can anyone tell me how these 3 would be if I have the following:

Router A:
Eth0 address is: 10.113.0.1/30 network: 10.113.0.0/30 broadcast: 10.113.0.3/30
Eth1 address is 10.113.0.5/30 network: 10.113.0.4/30 broadcast: 10.113.0.7/30
Eth2 address is 10.113.0.9/30 network: 10.113.0.8/30 broadcast: 10.113.0.11/30

Router B:
Eth0 address is: 10.113.0.13/30 network: 10.113.0.12/30 broadcast: 10.113.0.15/30
Eth1 address is 10.113.0.17/30 network: 10.113.0.16/30 broadcast: 10.113.0.19/30
Eth2 address is 10.113.0.6/30 network: 10.113.0.4/30 broadcast: 10.113.0.7/30

Router C:
Eth0 address is: 10.113.0.18/30 network: 10.113.0.16/30 broadcast: 10.113.0.19/30
Eth1 address is 10.112.0.1/17 network: 10.112.0.0/17 broadcast: 10.112.127.255/17
Eth2 address is 10.113.0.21/30 network: 10.113.0.20/30 broadcast: 10.113.0.23/30
Router D:
Eth0 address is: 10.113.0.10/30 network: 10.113.0.8/30 broadcast: 10.113.0.3/30
Eth1 address is 10.113.0.22/30 network: 10.113.0.20/30 broadcast: 10.113.0.7/30
Eth2 address is 10.112.128.1/17 network: 10.112.128.0/30 broadcast: 10.112.255.255/30

Thanks in advance!