On 26/01/2011 06:14 a.m., Owen DeLong wrote: >>> That said. Any size prefix will likely work and is even permitted by >>> the RFC. You do run the risk of encountering applications that assume >>> a 64-bit prefix length, though. And you're often crippling the >>> advantages of IPv6. >> >> Just curious: What are the advantages you're referring to? >> > 1. Sparse addressing
This comes at a cost, though. > 2. SLAAC > 3. RFC 4193 Privacy Addressing Privacy Extensions "solve" (*) a privacy issue *introduced* by SLAAC embedding the MAC addresses in the IID. -- So, if anything, I deem this as a patch, rather than a feature. (*) there is some bibliography about the effectiveness of privacy addresses. Some have even argued that they are harmful. > 4. Never have to worry about "growing" a subnet to hold new machines. As in #1, this comes at a price. > 5. Universal subnet size, no surprises, no operator confusion, no bitmath. With quite a bit of experience with subnetting (from IPv4), I doubt this can be flagged as a benefit. Thanks, -- Fernando Gont e-mail: ferna...@gont.com.ar || fg...@acm.org PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1
