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Posts published in “Day: August 24, 2020

Confusion about TTL when pinging

TTL value of a packet is supposed to decrease 1 at each router from 255 down to zero as follows:

But when I ping to the TTL starts at 253 and doesn't change:

How can this be explained? Why does it start from 253 but not 255? And ...

Setting public IP that I didn’t buy [closed]

What if I set whatever public IP to my router without buying that IP from the ISP? Is it illegal? Would I get connected to the Web or not?
Also, how the ISP resolves such problems?