Wan and Lan on same IP range for test lab
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The only exception would be where the masks are a different length, because routers rely on longest match. So, in this case, it might be possible to have 172.16.0.0 /16 on one side and 172.16.x.0 /24 on the other. In this situation, it says everything 172.16.0.0 /16 on one port, except 172.16.x.0 /24 which is on the other. This works only because the net mask allows the router to make the distinction. This also means that any address in the /24 network cannot be on the /16 side.
And the subnets would not be able to talk to each other without specific host routes because anything on 172.16.0.0/16 would think 172.16.x.0/24 was same-subnet traffic and would not send it to the router.
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Bottom line, he can't have the same address ranges on both sides of the router.
So he deserves endless mockery & grief because he's new at networking and got something basic wrong? That's what I'm talking about here. The need to rub someone's face in their mistake and taking pleasure in shaming them by pointing out what a noob they are and how little they know. What is the point of that behaviour? I see it on tech forums all the time. It's petty and counter-productive to growing a community.
And if anyone was about to roll out the Snowflake label, I can roll with the punches myself. This guy was brand-new and was asking his first question, and he gets jumped on. I'm not the least bit surprised that he hasn't responded back.
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I just got a job as a mechanic in a local shop.
What is the difference between a 7/16" socket wrench and a Phillips head screwdriver?
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It depends, what size Phillips head screwdriver?
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Locking this thread for obvious reasons. If mattie01 comes back, please send me a pm to unlock. Thanks!
