Will routers "short circuit" their own external ip address? [duplicate]

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Connecting to my own network via external IP

If I can access my router home page (or ssh etc.) through LAN machines via 0.0.0.1 and from anywhere on the internet via 0.0.0.2, and I type each of these into a browser on a machine within the LAN, will the router treat these requests differently?

For example, will the router realise that the external IP maps to the router itself and therefore treat it as if I had just typed in the internal IP instead?

Or will it depend on the router?

The lowest private ip range is 10.0.0.x. Have you managed to set machines to 0.0.0.x? See https://www.rfc-editor.org/rfc/rfc1918 to see private ip ranges

The IP you'd use from within your LAN is different to the one you'd use from outside your LAN.

But i've heard that there are some routers that when you're inside your LAN, you can use the external IP. Maybe they work by redirecting to the local one. I don't know more about that function, hopefully somebody else does.

The answer to your question depends on the router. Some routers utilize NAT reflection by default and will route you to their WAN IP just fine from one of the LAN IPs, though some routers do require that you enable that setting in the config, but some routers just won't do it at all.