BUT2/SCR/SCR3.2/TP01/two-gateway.imn

node n0 {
    type pc
    network-config {
	hostname A
	!
	interface eth0
	 mac address 42:00:aa:00:00:00
	 ip address 172.16.1.1/24
	!
	interface lo0
	 type lo
	 ip address 127.0.0.1/8
	!
	ip route 0.0.0.0/0 172.16.1.254
	!
    }
    canvas c0
    iconcoords {96 96}
    labelcoords {96 127}
    interface-peer {eth0 n3}
}

node n1 {
    type pc
    network-config {
	hostname B
	!
	interface eth0
	 mac address 42:00:aa:00:00:01
	 ip address 172.16.2.1/24
	!
	interface lo0
	 type lo
	 ip address 127.0.0.1/8
	!
	ip route 0.0.0.0/0 172.16.2.252
	!
    }
    canvas c0
    iconcoords {96 432}
    labelcoords {96 463}
    interface-peer {eth0 n7}
}

node n2 {
    type pc
    network-config {
	hostname C
	!
	interface eth0
	 mac address 42:00:aa:00:00:05
	 ip address 172.16.3.1/24
	!
	interface lo0
	 type lo
	 ip address 127.0.0.1/8
	!
	ip route 0.0.0.0/0 172.16.3.251
	!
    }
    canvas c0
    iconcoords {768 192}
    labelcoords {768 223}
    interface-peer {eth0 n6}
}

node n3 {
    type lanswitch
    network-config {
	hostname switch1
	!
    }
    canvas c0
    iconcoords {288 96}
    labelcoords {288 119}
    interface-peer {e0 n0}
    interface-peer {e2 n4}
}

node n4 {
    type host
    network-config {
	hostname P1
	!
	interface eth1
	 mac address 42:00:aa:00:00:03
	 ip address 172.16.2.253/24
	!
	interface eth0
	 mac address 42:00:aa:00:00:02
	 ip address 172.16.1.254/24
	!
	interface lo0
	 type lo
	 ip address 127.0.0.1/8
	!
    }
    canvas c0
    iconcoords {288 264}
    labelcoords {288 300}
    interface-peer {eth0 n3}
    interface-peer {eth1 n7}
    custom-configs {
        custom-config-id default {
            custom-command /bin/sh
            config {
                ip addr add 127.0.0.1/8 dev lo0
                ip addr add 172.16.1.254/24 dev eth0
                ip addr add 172.16.2.253/24 dev eth1
                
                iptables -t nat -A POSTROUTING -j SNAT --to-source 172.16.2.253
                iptables -t filter -A FORWARD -d 172.16.3.0/24 -j DROP
                iptables -t filter -A FORWARD -d 172.16.1.0/24 -s 172.16.2.0/24 -j DROP
                
                rpcbind
                inetd
                
            }
        }
    }
    custom-enabled true
    custom-selected default
}

node n5 {
    type host
    network-config {
	hostname P2
	!
	interface eth2
	 mac address 42:00:aa:00:00:08
	 ip address 10.0.0.250/8
	!
	interface eth1
	 mac address 42:00:aa:00:00:06
	 ip address 172.16.3.251/24
	!
	interface eth0
	 mac address 42:00:aa:00:00:04
	 ip address 172.16.2.252/24
	!
	interface lo0
	 type lo
	 ip address 127.0.0.1/8
	!
    }
    canvas c0
    iconcoords {528 432}
    labelcoords {528 468}
    interface-peer {eth1 n6}
    interface-peer {eth0 n7}
    interface-peer {eth2 n8}
    custom-configs {
        custom-config-id default {
            custom-command /bin/sh
            config {
                ip addr add 127.0.0.1/8 dev lo0
                ip addr add 172.16.3.251/24 dev eth1
                ip addr add 172.16.2.252/24 dev eth0
                ip addr add 10.0.0.250/8 dev eth2
                
                iptables -t filter -A FORWARD -d 172.16.1.0/24,172.16.2.0/24 -j DROP
                
                rpcbind
                inetd
                
            }
        }
    }
    custom-selected default
}

node n6 {
    type lanswitch
    network-config {
	hostname switch3
	!
    }
    canvas c0
    iconcoords {528 192}
    labelcoords {528 215}
    interface-peer {e0 n2}
    interface-peer {e1 n5}
}

node n7 {
    type lanswitch
    network-config {
	hostname switch2
	!
    }
    canvas c0
    iconcoords {288 432}
    labelcoords {288 455}
    interface-peer {e0 n1}
    interface-peer {e1 n4}
    interface-peer {e2 n5}
}

node n8 {
    type router
    model quagga
    network-config {
	hostname router1
	!
	interface eth1
	 mac address 42:00:aa:00:00:09
	 ip address 10.0.7.1/24
	!
	interface eth0
	 mac address 42:00:aa:00:00:07
	 ip address 10.0.0.250/8
	!
	interface lo0
	 type lo
	 ip address 127.0.0.1/8
	!
	router rip
	 redistribute static
	 redistribute connected
	 redistribute ospf
	 network 0.0.0.0/0
	!
	router ripng
	 redistribute static
	 redistribute connected
	 redistribute ospf6
	 network ::/0
	!
    }
    canvas c0
    iconcoords {768 432}
    labelcoords {768 457}
    interface-peer {eth0 n5}
    interface-peer {eth1 n9}
}

node n9 {
    type pc
    network-config {
	hostname D
	!
	interface eth0
	 mac address 42:00:aa:00:00:0a
	 ip address 10.0.7.20/24
	!
	interface lo0
	 type lo
	 ip address 127.0.0.1/8
	!
	ip route 0.0.0.0/0 10.0.0.250
	!
    }
    auto_default_routes enabled
    canvas c0
    iconcoords {864 576}
    labelcoords {864 607}
    interface-peer {eth0 n8}
}

link l0 {
    nodes {n3 n0}
    bandwidth 0
}

link l2 {
    nodes {n4 n3}
    bandwidth 0
}

link l4 {
    nodes {n6 n2}
    bandwidth 0
}

link l5 {
    nodes {n5 n6}
    bandwidth 0
}

link l1 {
    nodes {n7 n1}
    bandwidth 0
}

link l3 {
    nodes {n4 n7}
    bandwidth 0
}

link l6 {
    nodes {n7 n5}
    bandwidth 0
}

link l7 {
    nodes {n8 n5}
    bandwidth 0
}

link l8 {
    nodes {n8 n9}
    bandwidth 0
}

canvas c0 {
    name {Canvas0}
}

option show {
    interface_names yes
    ip_addresses yes
    ipv6_addresses yes
    node_labels yes
    link_labels yes
    background_images yes
    annotations yes
    hostsAutoAssign no
    grid yes
    iconSize normal
    zoom 1.0
}