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  • Thanks for your reply. With respect to question #1 if my router is NATing the outbound traffic, then in what situation does a packet ever arrive at my friends router with a 172.27.0.0/16 address as either the source or destination?
    – James
    Commented May 14, 2016 at 3:50
  • 172.27.0.0/16 is a subnet I use inside my network, my friend only uses 192.168.20.X If my router is NATing the outbound traffic then shouldn't my friends network never see any 172.27.0.0/16 addresses as my NAT will always rewrite them first?
    – James
    Commented May 14, 2016 at 5:44
  • I can't explain why you need the 172.27.0.0/16 VLAN. That's your infrastructure design. Commented May 14, 2016 at 5:46
  • I'm not asking why I need the VLAN, I'm asking why the static route is necessary.
    – James
    Commented May 14, 2016 at 5:47
  • I'm not 100% sure, but I think that a tracert 172.27.71.1 and tracert 172.27.72.1 from the same machine on your side might give you a better answer. Commented May 14, 2016 at 5:51