20:04:28.728635 IP (tos 0x0, ttl 64, id 42405, offset 0, flags [DF], proto GRE (47), length 120) 61.148.157.42 > 216.66.80.26: GREv1, Flags [key present, sequence# present], call 17664, seq 213, length 100
        IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84) 184.104.60.171 > 168.143.171.180: ICMP echo request, id 64302, seq 1, length 64
20:04:29.187034 IP (tos 0x0, ttl 50, id 2460, offset 0, flags [DF], proto GRE (47), length 32) 216.66.80.26 > 61.148.157.42: GREv1, Flags [key present, ack present], call 0, ack 213, no-payload, length 12
20:04:29.292023 IP (tos 0x0, ttl 50, id 2461, offset 0, flags [DF], proto GRE (47), length 120) 216.66.80.26 > 61.148.157.42: GREv1, Flags [key present, sequence# present], call 0, seq 211, length 100
        IP (tos 0x20, ttl 244, id 43725, offset 0, flags [none], proto ICMP (1), length 84) 168.143.171.180 > 184.104.60.171: ICMP echo reply, id 64302, seq 1, length 64