IP 192.1.2.23 > 192.1.2.45: ESP(spi=0xed123456,seq=0x1): IP 192.0.2.1 > 192.0.1.1: icmp 64: echo request seq 1280 (ipip-proto-4) IP 192.1.2.23 > 192.1.2.45: ESP(spi=0xed123456,seq=0x2): IP 192.0.2.1 > 192.0.1.1: icmp 64: echo request seq 1536 (ipip-proto-4) IP 192.1.2.23 > 192.1.2.45: ESP(spi=0xed123456,seq=0x3): IP 192.0.2.1 > 192.0.1.1: icmp 64: echo request seq 1792 (ipip-proto-4) IP 192.1.2.23 > 192.1.2.45: ESP(spi=0xed123456,seq=0x4): IP 192.0.2.1 > 192.0.1.1: icmp 64: echo request seq 2048 (ipip-proto-4) IP 192.1.2.23 > 192.1.2.45: ESP(spi=0xed123456,seq=0x5): IP 192.0.2.1 > 192.0.1.1: icmp 64: echo request seq 2304 (ipip-proto-4) IP 192.1.2.23 > 192.1.2.45: ESP(spi=0xed123456,seq=0x6): IP 192.0.2.1 > 192.0.1.1: icmp 64: echo request seq 2560 (ipip-proto-4) IP 192.1.2.23 > 192.1.2.45: ESP(spi=0xed123456,seq=0x7): IP 192.0.2.1 > 192.0.1.1: icmp 64: echo request seq 2816 (ipip-proto-4) IP 192.1.2.23 > 192.1.2.45: ESP(spi=0xed123456,seq=0x8): IP 192.0.2.1 > 192.0.1.1: icmp 64: echo request seq 3072 (ipip-proto-4)