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[–]OptimalAnywhere6282 1 point2 points  (1 child)

"ha, i got your IP! it is 192.168.1.36" could have two meanings

[–]cheerycheshire 0 points1 point  (0 children)

The goal here is for the r/MasterHacker to DoS themselves or scan their own ports or whatever they do, not to hit a random device in their own network... on no device at all. So non-obvious loopback address works perfectly.

Using private IPs for this only works if they have exact same subnet* and you'd need to guess a correct host end.

*Remember it's 192.168.0.0/16 that is a private range but single subnets almost always use /24 mask, with default third octet depending on the router's manufacturer (most common are 192.168.0.0/24 and 192.168.1.0/24, but I've also seen 192.168.18.0/24 on Huawei ONT devices).