Basic understanding question
Example: tracked interface = wan.
Does "track interface" mean, that the delegated ip6 prefix (for example: /62 via DHCPv6-PD on WAN interface) is automatically used for SLAAC on the LAN interface? So a/64 is calculated ut of the delegated subnet and used for the LAN interface?
What if i get a /62 via prefix delegation and have two LAN interfaces? Can I use tracking on both LAN interfaces? So LAN1 calculates a /64 out of the /62 and LAN 2 does the same thing?
Sorry for my newbie questions :-)
track interface means that the interface will pull an IP from the delegated prefix and it's automatically setup for DHCP and SLAAC.
The prefix for that will always be /64, so if you get a /62 from your provider, the prefix ID specifies which of the delegated prefixes to use where. The LAN would be using one ID, and your other internal interface would use a different prefix ID, etc.
The ID may be up to your ISP, so you might have to ask them, but typically it just goes 0, 1, 2, 3 … d, e, f.
Thx for the fast respone!
Is the "ID" the so called subnet id?
from wikipedia ipv6 article:
The network prefix (the routing prefix combined with the subnet id) is contained in the most significant 64 bits of the addres
That seems to me logical. I use the provider give prefix and add my own subnet IDs...