Florian Weimer wrote: > What's the current consensus on exempting private network space from > source address validation? Is it recommended? Discouraged? > > (One argument in favor of exceptions is that it makes PMTUD work if > transfer networks use private address space.) > >
IMHO, operators who number infrastructure out of RFC1918 and then permit internet traceroutes over it are misguided and should consider avoiding TTL decrement (i.e using mpls without internet TTL propagation) as a less stressful (for us) alternative to simply filtering. Dave. -- David Freedman Group Network Engineering Claranet Group
