12.Wait for about 5 minutes, and test the internal and external connection to each cluster  node on the LinuxONE system by using the ping command as shown in Example 3-38. Example 3-38 Verifying if IPs are reachable from master node [root@ssc4icp-master ~]#  ping -c2 192.168.0.245 PING 192.168.0.245 (192.168.0.245) 56(84) bytes of data. 64 bytes from 192.168.0.245: icmp_seq=1 ttl=64 time=0.241 ms 64 bytes from 192.168.0.245: icmp_seq=2 ttl=64 time=0.363 ms --- 192.168.0.245 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1006ms rtt min/avg/max/mdev = 0.241/0.302/0.363/0.061 ms [root@ssc4icp-master ~]#  ping -c2 192.168.0.246 PING 192.168.0.246 (192.168.0.246) 56(84) bytes of data. 64 bytes from 192.168.0.246: icmp_seq=1 ttl=64 time=0.371 ms 64 bytes from 192.168.0.246: icmp_seq=2 ttl=64 time=0.358 ms --- 192.168.0.246 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 999ms rtt min/avg/max/mdev = 0.358/0.364/0.371/0.020 ms [root@ssc4icp-master ~]#  ping -c2 192.168.0.247 PING 192.168.0.247 (192.168.0.247) 56(84) bytes of data. 64 bytes from 192.168.0.247: icmp_seq=1 ttl=64 time=0.418 ms 64 bytes from 192.168.0.247: icmp_seq=2 ttl=64 time=0.335 ms --- 192.168.0.247 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 999ms rtt min/avg/max/mdev = 0.335/0.376/0.418/0.045 ms [root@ssc4icp-master ~]#  [root@ssc4icp-master ~]#  ping -c2 192.168.0.253 PING 192.168.0.253 (192.168.0.253) 56(84) bytes of data. 64 bytes from 192.168.0.253: icmp_seq=1 ttl=64 time=0.388 ms 64 bytes from 192.168.0.253: icmp_seq=2 ttl=64 time=0.516 ms --- 192.168.0.253 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 999ms rtt min/avg/max/mdev = 0.388/0.452/0.516/0.064 ms [root@ssc4icp-master ~]#  ping -c2 192.168.0.254 PING 192.168.0.254 (192.168.0.254) 56(84) bytes of data. 64 bytes from 192.168.0.254: icmp_seq=1 ttl=64 time=0.399 ms 64 bytes from 192.168.0.254: icmp_seq=2 ttl=64 time=0.430 ms --- 192.168.0.254 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 999ms rtt min/avg/max/mdev = 0.399/0.414/0.430/0.025 ms [root@ssc4icp-master ~]#  ping -c2 9.16.27.25 PING 9.16.27.25 (9.16.27.25) 56(84) bytes of data. 64 bytes from 9.16.27.25: icmp_seq=1 ttl=64 time=1.08 ms 64 bytes from 9.16.27.25: icmp_seq=2 ttl=64 time=0.478 ms --- 9.16.27.25 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1001ms rtt min/avg/max/mdev = 0.478/0.783/1.089/0.306 ms [root@ssc4icp-master ~]# 13.Make sure all IP addresses are reachable you proceed. 116  Implementation Guide for IBM Blockchain Platform for Multicloud