Those sure are some wonky-looking addresses. None of them are even from the 2000::/3 global unicast prefix. Seems more likely to be a bug than an attack, sinc

Those sure are some wonky-looking addresses. None of them are even from the 2000::/3 global unicast prefix. Seems more likely to be a bug than an attack, since an attacker would inject plausible-looking data that couldn't be filtered out so trivially.