Hot answers tagged networking
Ethernet Over Ethernet – yes, the entire frame including its Ethernet header is sent by your operating system, and the OS decides what source MAC address to use. In fact, virtual machine systems (like VMware or Hyper-V) already use this to connect VMs to your real LAN – you might have multiple VMs attached to a single Ethernet card, and each VM will have ...
That all sounds very interesting, I’m not that familiar with most of it but I am familiar enough with SSH to attempt to assist you. You have your two computers A and B. The question is which one is behind a router that you don’t control / a router that you cannot do port forwarding on / a firewall that you don't control. As long as you can SSH from A to B ...
Windows 8, Windows Server 2008,, Windows Server 2012, Windows Vista (and I presume Windows 7, though not listed) have msg command, similar to net send. See also http://www.cezeo.com/tips-and-tricks/msg-command/.
Your description of the scenario is almost without reproach. However you have overlooked a crucial bit. When the router receives a packet via the public facing port (WAN), it does not only translate based on the source port, but the source IP/port combo, this is a socket. To be fair, there are numerous various of NAT, I suggest a thorough reading NAT'ing ...
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