Wojciech Dec (wdec) wrote:
In general, reading through the ULA rfc, while there is a fair bot of talk regarding pseudo-random ULA global-id's and use along with SLAAC, there hardly is any reference to the scenario where there can be multiple global-id's per site sourced by multiple routers. However, the presence of a subnet-id indicates that the authors did have in mind a more managed addressing assignment regime, which becomes undone in the multiple router/gateway case.
The ULA RFC was not written with the perspective that individual routers would automatically generate the ULA prefix and then advertise them (either in RAs or a routing protocol). Rather, a network administrator would generate the ULA prefix using the guidelines provided, design a subnet model for the network, and then configure the ULA prefix + subnet information in the routers.
If a network admin wanted multiple, diverse ULA prefixes, he/she can use the random generation logic to generate an arbitrary number of them. Again, the RFC was not written with the intent of routers automatically generating the ULA prefix without operator intervention.
Regards, Brian -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
