# tcpdump -n -i tun0
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on tun0, link-type NULL (BSD loopback), capture size 96 bytes
14:49:55.465226 IP 172.17.97.150 > 10.19.29.152: ICMP echo request, id 11553, seq 0, length 64
14:49:55.744561 IP 10.19.29.152 > 172.17.97.150: ICMP echo reply, id 11553, seq 0, length 64
14:49:56.466477 IP 172.17.97.150 > 10.19.29.152: ICMP echo request, id 11553, seq 1, length 64
14:49:56.757589 IP 10.19.29.152 > 172.17.97.150: ICMP echo reply, id 11553, seq 1, length 64
14:49:57.467432 IP 172.17.97.150 > 10.19.29.152: ICMP echo request, id 11553, seq 2, length 64
14:49:57.705145 IP 10.19.29.152 > 172.17.97.150: ICMP echo reply, id 11553, seq 2, length 64
14:49:58.468445 IP 172.17.97.150 > 10.19.29.152: ICMP echo request, id 11553, seq 3, length 64
14:49:58.769523 IP 10.19.29.152 > 172.17.97.150: ICMP echo reply, id 11553, seq 3, length 64
14:49:59.469396 IP 172.17.97.150 > 10.19.29.152: ICMP echo request, id 11553, seq 4, length 64
14:49:59.724147 IP 10.19.29.152 > 172.17.97.150: ICMP echo reply, id 11553, seq 4, length 64


^---- firewall to wiki


14:50:21.840565 IP 10.1.2.15 > 10.19.29.152: ICMP echo request, id 14201, seq 1, length 64
14:50:22.840135 IP 10.1.2.15 > 10.19.29.152: ICMP echo request, id 14201, seq 2, length 64
14:50:23.840658 IP 10.1.2.15 > 10.19.29.152: ICMP echo request, id 14201, seq 3, length 64
14:50:24.840799 IP 10.1.2.15 > 10.19.29.152: ICMP echo request, id 14201, seq 4, length 64
14:50:25.841071 IP 10.1.2.15 > 10.19.29.152: ICMP echo request, id 14201, seq 5, length 64
14:50:26.841214 IP 10.1.2.15 > 10.19.29.152: ICMP echo request, id 14201, seq 6, length 64
14:50:27.841360 IP 10.1.2.15 > 10.19.29.152: ICMP echo request, id 14201, seq 7, length 64
14:50:28.841504 IP 10.1.2.15 > 10.19.29.152: ICMP echo request, id 14201, seq 8, length 64
14:50:29.841770 IP 10.1.2.15 > 10.19.29.152: ICMP echo request, id 14201, seq 9, length 64
14:50:30.841913 IP 10.1.2.15 > 10.19.29.152: ICMP echo request, id 14201, seq 10, length 64
14:50:31.842057 IP 10.1.2.15 > 10.19.29.152: ICMP echo request, id 14201, seq 11, length 64


^------ host in our network to the wiki