Re: encoding link ID in link-local addrs (Re: about violation of standards)

[Alexandre Petrescu <[e-mail]>]

Le 21/04/2019 à 01:34, Gyan Mishra a écrit :
> Suresh & Alexandre
> 
> There are many implementations worldwide that I have been involved in 
> deployment of IPv6 using a standard architecture that I deploy to all my 
> customers and that involves setting the station id on the link local 
> address so that the next hop is more intuitive and easily recognizable 
> that it’s your local next hop since by default all routers and hosts set 
> the station id to EUI64 format FFFE big stuff into the MAC address 
> between the 3rd and 4th octet which is “non intuitive”

I fully agree.

In my deployments too there is often an ULA or an LL that is manually 
set with some IID that is much shorter than EUI-64.

That is easier to remember, to document and to try with ping.

In addition to that, in my settings we often use fe80:something::1.  Did 
you see something like that in your settings?

[...]
> So as far a variable link local address I am in favor of variable and 
> you have the entire 64 bit station id to modify which is fine but I am 
> completely not in favor of violating the current standard of writing 
> into the 54 bit all 0s portion of the network prefix.

Noted.

Alex