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A comment on No one, not even the Secret Service, should randomly plug in a strange USB stick. Parent comment

Re:No one, not even the Secret Service, should randomly plug... by voltagex_ on Monday April 08, 2019 @11:52PM (#19611627)
Can you elaborate? I understand the concept of RNDIS or CDC devices, but if you've sent an IP address only without a router, how is any traffic going to make it back to the other IP in that subnet? I figure it will go back over the default route, but how are you in control of the traffic itself?
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Re:No one, not even the Secret Service, should randomly plug... by oarsinsync on Tuesday April 09, 2019 @03:23AM (#19612512)
The subnet mask determines the size of the connected network, which is in itself a route in your routing table.

It's the same mechanism used to reach your router. Subnet-local / connected routes are routes in themselves. Routers let you leave your subnet.

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