Comment by boob

4 days ago

> Can someone explain why it's ambiguous?

Because you don’t know how many zeroes are on each side around the 0001 in the middle.

It can be 2000:0000:1:0000:0000:0000:0000:1 or 2000:0000:0000:0000:0000:1:0000:1 etc.

This shortcut system of ipv6 only makes it worse. It's too hard to remember how it works.