We expect ICMP to work between all pairs of hosts. First, on host one, run pingall as follows:
mininet> pingall *** Ping: testing ping reachability h35_2 -> h35_3 h36_2 h36_3 h35_3 -> h35_2 h36_2 h36_3 h36_2 -> h35_2 h35_3 h36_3 h36_3 -> h35_2 h35_3 h36_2 *** Results: 0% dropped (12/12 received)
and the same on host 2:
mininet> pingall *** Ping: testing ping reachability h35_4 -> h35_5 h36_4 h36_5 h35_5 -> h35_4 h36_4 h36_5 h36_4 -> h35_4 h35_5 h36_5 h36_5 -> h35_4 h35_5 h36_4
The hosts h35_[n] are in EG1, in the subnet 10.0.35.1/24. Hosts h36_[n] are in EG2, in the subnet 10.0.36.1/24. These two tests therefore shows broadcast within the flood domain working to enable ARP, bridging within the endpoint group, and the functioning of the virtual router which is routing traffic between the two subnets. It also shows the ICMP policy allowing the ping between the two groups.
Now we can test connectivity over the tunnel:
mininet> h35_2 ping -c1 10.0.35.4 PING 10.0.35.4 (10.0.35.4) 56(84) bytes of data. 64 bytes from 10.0.35.4: icmp_seq=1 ttl=64 time=1.78 ms --- 10.0.35.4 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 1.786/1.786/1.786/0.000 ms mininet> h35_2 ping -c1 10.0.35.5 PING 10.0.35.5 (10.0.35.5) 56(84) bytes of data. 64 bytes from 10.0.35.5: icmp_seq=1 ttl=64 time=2.59 ms --- 10.0.35.5 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 2.597/2.597/2.597/0.000 ms mininet> h35_2 ping -c1 10.0.36.4 PING 10.0.36.4 (10.0.36.4) 56(84) bytes of data. 64 bytes from 10.0.36.4: icmp_seq=1 ttl=62 time=2.64 ms --- 10.0.36.4 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 2.641/2.641/2.641/0.000 ms mininet> h35_2 ping -c1 10.0.36.5 PING 10.0.36.5 (10.0.36.5) 56(84) bytes of data. 64 bytes from 10.0.36.5: icmp_seq=1 ttl=62 time=2.93 ms --- 10.0.36.5 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 2.936/2.936/2.936/0.000 ms
This shows all those same features working transparently across the tunnel to the hosts on the other switch.
