It appears that Brian E Carpenter <brian.e.carpenter@xxxxxxxxx> said: >On 03-Apr-22 12:21, Michael Richardson wrote: >> >> I wish that more RFCs had such well thought out Security Considerations. > >They are incomplete. There is a whole world of hurt if one considers >IPv6 addresses. What are we to make of a prefix like 2cf2::/16 ? >If we assume it's bioctal, it is really 28c2::/16 in hex. But if >we assume it's hexadecimal, it's really 2cf2::/16. > >That sort of confusion between IP prefixes could be quite an >operational problem and lead to all kinds of exposures. It means >that auto-detection of bioctal vs hex is generally impossible. Calm down, nobody uses IPv6 so it isn't a problem worth worrying about. Helpfully, John -- Regards, John Levine, johnl@xxxxxxxxx, Primary Perpetrator of "The Internet for Dummies", Please consider the environment before reading this e-mail. https://jl.ly
