What’s the difference between them?
Can they be used interchangeably?
What kind of information can we tease out from this table?
The Answer
Two SuperUser contributors jumped in to help solve the mystery.
First, Mmmc offers this succinct overview:
No.
You cannot use them both.
And they are not both loopback adresses.
127.0.0.1is a loopback address127.0.0.2is a loopback address127.0.0.3is a loopback address and so on
127.0.0.0is a web connection address.
*will contain loopback addresses.
In some ways this is similar to how we navigate in real life.
Without getting into great detail, the “higher” the mask value, the more specific the destination.
So a value of 0.0.0.0 covers going to any equipment and a value of 255.255.255.255 specifies an individual equipment.
So to answer the original question, no you’re able to’t use 127.0.0.0 and 127.0.0.1 interchangeably.
