arp who-has 192.1.2.45 tell 192.1.2.23
arp reply 192.1.2.45 is-at 10:0:0:64:64:45
192.1.2.23 > 192.0.1.1: icmp: echo request (DF)
192.1.2.23 > 192.1.2.45: ESP(spi=0x12345678,seq=0x1)
192.1.2.23 > 192.1.2.45: ESP(spi=0x12345678,seq=0x2)
192.1.2.23 > 192.1.2.45: ESP(spi=0x12345678,seq=0x3)
192.1.2.23 > 192.1.2.45: ESP(spi=0x12345678,seq=0x4)
192.1.2.23 > 192.1.2.45: ESP(spi=0x12345678,seq=0x5)
192.1.2.23 > 192.1.2.45: ESP(spi=0x12345678,seq=0x6)
192.1.2.23 > 192.1.2.45: ESP(spi=0x12345678,seq=0x7)