On 14/11/13 14:39, Brian Julin wrote: > > FWIW, this approach opens a bunch of (not insurmountable) security obstacles. > > See draft-itojun-v6ops-v4mapped-harmful-00 Interesting. It would appear my knowledge is outdated in this area (and I see that OpenSSH no longer uses this approach either). Consider my "moderately useful" comment withdrawn!