I am working on converting my core to IPv6. My current addressing scheme includes the VLAN in the IPv6 address:
However I have some VLAN overlap (the same VLAN number used in different locations/equipment for different roles) between my peering VLANS and customer VLANs. Therefore I can't use the "VLAN in address" scheme. I am wondering if it is OK practice to use ULA address for all the peering and Global for the customer (and internet) facing VLANs? I've heard people recommend and argue against both using ULA for peering and not, however I've never seen/heard any facts as to why.
Any thoughts welcome! Thanks!