CARP VS VRRP, what and how?

Question

Computer networks

We choose how to organize the uninterrupted operation of the fronts.
What is better and what is the difference between these two technologies.
What would you recommend?

Answer 1

CARP is supposedly better, because it lives at the kernel-level, knows how to crypt and supports IPv6 (on the other hand, if you have IPv6, then it’s not clear why CARP is needed at all).
The only problem is that CARP is only available under BSD. Under Linux there is vrrpd , which personally suits me perfectly. So at first you will have to choose not between protocols, but between operating systems :)
Alternatives are ucarp (a wretched product that lived only until there was an alternative, it only supports two hosts, no more), and keepalived , which is not bad, but for my purposes it was overly heavy.

Answer 2

We have a problem: The hoster says use VRRP, since they freeze IP-MAC on the ports and when the IP jumps from the server to the server, it does not immediately start working.
And why the phrase:
-> on the other hand, if you have IPv6, then it is not clear why then CARP at all