

/ # ping 192.168.4.2
PING 192.168.4.2 (192.168.4.2): 56 data bytes
64 bytes from 192.168.4.2: seq=0 ttl=62 time=3.644 ms
64 bytes from 192.168.4.2: seq=1 ttl=62 time=7.362 ms
64 bytes from 192.168.4.2: seq=2 ttl=62 time=3.554 ms
64 bytes from 192.168.4.2: seq=3 ttl=62 time=3.654 ms
64 bytes from 192.168.4.2: seq=4 ttl=62 time=3.574 ms
--- 192.168.4.2 ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 3.554/4.357/7.362 ms

/ # traceroute 192.168.4.2
traceroute to 192.168.4.2 (192.168.4.2), 30 hops max, 46 byte packets
1  10.0.0.1 (10.0.0.1)  1.149 ms  1.144 ms  1.063 ms
2  1.1.1.2 (1.1.1.2)  3.049 ms  3.751 ms  1.721 ms
3  192.168.4.2 (192.168.4.2)  2.876 ms  3.201 ms  2.826 ms


/ # ping 192.168.4.2
PING 192.168.4.2 (192.168.4.2): 56 data bytes
64 bytes from 192.168.4.2: seq=0 ttl=61 time=9.979 ms
64 bytes from 192.168.4.2: seq=1 ttl=61 time=5.306 ms
64 bytes from 192.168.4.2: seq=2 ttl=61 time=8.230 ms
64 bytes from 192.168.4.2: seq=3 ttl=61 time=4.963 ms
64 bytes from 192.168.4.2: seq=4 ttl=61 time=7.786 ms
--- 192.168.4.2 ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 4.963/7.252/9.979 ms

/ # traceroute 192.168.4.2
traceroute to 192.168.4.2 (192.168.4.2), 30 hops max, 46 byte packets
1  10.0.0.1 (10.0.0.1)  1.079 ms  0.978 ms  0.875 ms
2  1.1.1.10 (1.1.1.10)  1.878 ms  2.529 ms  1.820 ms
3  1.1.1.5 (1.1.1.5)  4.696 ms  4.186 ms  3.769 ms
4  192.168.4.2 (192.168.4.2)  4.442 ms  9.486 ms  5.144 ms

R1

1.1.1.8/30 dev eth1  proto kernel  scope link  src 1.1.1.9 
10.0.0.0/24 dev eth2  proto kernel  scope link  src 10.0.0.1 
127.0.0.0/8 dev lo  proto kernel  scope link  src 127.0.0.1 
172.16.8.0/24 via 1.1.1.10 dev eth1  proto zebra  metric 1 
192.168.4.0/24 via 1.1.1.10 dev eth1  proto zebra

R2

1.1.1.4/30 dev eth1  proto kernel  scope link  src 1.1.1.5 
10.0.0.0/24 via 1.1.1.6 dev eth1  proto zebra 
127.0.0.0/8 dev lo  proto kernel  scope link  src 127.0.0.1 
172.16.8.0/24 via 1.1.1.6 dev eth1  proto zebra  metric 1 
192.168.4.0/24 dev eth2  proto kernel  scope link  src 192.168.4.1 

R3

1.1.1.4/30 dev eth0  proto kernel  scope link  src 1.1.1.6 
1.1.1.8/30 dev eth1  proto kernel  scope link  src 1.1.1.10 
10.0.0.0/24 via 1.1.1.9 dev eth1  proto zebra  metric 1 
127.0.0.0/8 dev lo  proto kernel  scope link  src 127.0.0.1 
172.16.8.0/24 dev eth2  proto kernel  scope link  src 172.16.8.1 
192.168.4.0/24 via 1.1.1.5 dev eth0  proto zebra  metric 1 



R1

configure
set interfaces ethernet eth0 address 1.1.1.1/30
set interfaces ethernet eth1 address 1.1.1.9/30
set interfaces ethernet eth3 address 10.0.0.1/30
set protocols bgp 65531 neighbor 1.1.1.2 remote-as '65532'
set protocols bgp 65531 neighbor 1.1.1.2 update-source 1.1.1.1
set protocols bgp 65531 parameters router-id 1.1.1.1

set protocols bgp 65531 neighbor 1.1.1.10 remote-as '65533'
set protocols bgp 65531 neighbor 1.1.1.10 update-source 1.1.1.9
set protocols bgp 65531 parameters router-id 1.1.1.10

set protocols bgp 65531 network 10.0.0.0/24
commit
save
exit

R2

configure
set interfaces ethernet eth0 address 1.1.1.2/30
set interfaces ethernet eth1 address 1.1.1.5/30
set interfaces ethernet eth2 address 192.168.4.1/24
set protocols bgp 65532 neighbor 1.1.1.1 remote-as '65531'
set protocols bgp 65532 neighbor 1.1.1.1 update-source 1.1.1.2
set protocols bgp 65532 parameters router-id 1.1.1.2

set protocols bgp 65532 neighbor 1.1.1.6 remote-as '65533'
set protocols bgp 65532 neighbor 1.1.1.6 update-source 1.1.1.5
set protocols bgp 65532 parameters router-id 1.1.1.6

set protocols bgp 65532 network 192.168.4.0/24
commit
save
exit

R3

configure
set interfaces ethernet eth0 address 1.1.1.6/30
set interfaces ethernet eth1 address 1.1.1.10/30
set interfaces ethernet eth3 address 172.16.8.1/24
set protocols bgp 65533 neighbor 1.1.1.9 remote-as '65531'
set protocols bgp 65533 neighbor 1.1.1.9 update-source 1.1.1.10
set protocols bgp 65533 parameters router-id 1.1.1.10

set protocols bgp 65533 neighbor 1.1.1.5 remote-as '65532'
set protocols bgp 65533 neighbor 1.1.1.5 update-source 1.1.1.6
set protocols bgp 65533 parameters router-id 1.1.1.6

set protocols bgp 65533 network 172.16.8.0/24
commit
save
exit

PC1

cat /etc/network/interfaces

auto eth0
iface eth0 inet static
	address 10.0.0.2
	netmask 255.255.255.0
	gateway 10.0.0.1

PC2

cat /etc/network/interfaces

auto eth0
iface eth0 inet static
	address 192.168.4.2
	netmask 255.255.255.0
	gateway 192.168.4.1

PC3

cat /etc/network/interfaces

auto eth0
iface eth0 inet static
	address 172.16.8.2
	netmask 255.255.255.0
	gateway 172.16.8.1

