Earlier quoted context omitted.
How do you collect consent from people before you receive their IP addresses?
Them giving their IP address is consent. If I put a dollar bill in your hand, I can come around a year later and ask for it back since I didn't "consent" explicitly.
(this is also the argument around cookie consent: yes, the browser chooses to accept the cookie. users don't really get an opportunity to refuse them, though. So "the browser accepted the cookies" is not sufficient consent, as far as the EU is concerned)