[c-nsp] IPv6 subnets for point-to-point links

[Pekka Savola]

On Sat, 7 May 2005, Marcel Lammerse wrote:
> according to the documentation I'm reading, it is not recommended to assign 
> /127 subnets on IPv6 point-to-point links since it breaks some IPv6 
> mechanisms. An example is duplicate-address-detection (dad), which uses a 
> subnet-router anycast address, that would conflict with one of the two 
> available address on the link. However, the same documentation mentions that 
> it was popular practice on the 6bone.

"was" popular.

> Is it or is it not safe practice to use /127  instead of the recommended /64 
> and waste a lot of address? What are people typically using?

Don't do it.  If you want to use shorter prefixes, I suggest doing 
something like /112 or whatever.

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings