alt Hacker NewsHaving both a real address, a link-local address, and a unique local address, and the requirement to use the right one in each circumstance
The removal of arp and removal of broadcast, the enforcement of multicast
The almost-required removal of NAT and the quasi-relgious dislike from many network people. Instead of simply src-natting your traffic behind ISP1 or ISP2, you are supposed to have multiple public IPs and somehow make your end devices choose the best routing rather than your router.
All of these were choices made in addition to simply expanding the address scope.
> Having both a real address, a link-local address, and a unique local address, and the requirement to use the right one in each circumstance
Only use the real one then (unless you happen to be implementing ND or something)!
> The removal of arp and removal of broadcast, the enforcement of multicast
ARP was effectively only replaced by ND, no? Maybe there are many disadvantages I'm not familiar with, but is there a fundamental problem with it?
> The almost-required removal of NAT
Don't like that part? Don't use it, and do use NAT66. It works great, I use it sometimes!