Imagine this, you have a top down view of two LANs that reside in different locations.. You know which machines are on in each LAN and their private IP's.. Is it possible to send an ICMP packet from a machine in one of the LANS to a specified machine in the other LAN? Obviously the dest address of the packet can't be the private IP it is intended for, but instead the dest routers public IP, so is it possible to directly send the ICMP packet to a host in another network?
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