On Mon, 15 Aug 2022, Marco wrote:
Am 15. Aug 2022, um 08:15:30 Uhr schrieb Tim Woodall:Isn't the danger here that everybody starts using fd00::/64. Even for ipv4, the odds of two sets of private addresses colliding should have been small...They may collide, but it is not a real problem, because it only affects the situation when 2 sites are connected together. Using random bits avoids such a situation, but if they collide, one of the networks must be changed.
Exactly. The same happens when connecting two sites using ipv4. Renumbering is often a pain, to the extent that I worked somewhere where there was natting between the two companies so that the other company looked like it had different IPs to what it really did and DNS was horrendous! Cached dns for someone moving between the sites was a problem... All because the same 10.x addresses had been chosed and renumbering one or the other was too hard.