IPv6 128 adresses for devices normal?

[Drakon]

Hi,

so i setup IPv6 on my OPNSense following this tutorial:

https://docs.opnsense.org/manual/how-tos/ipv6_dsl.html

with the only difference that i unticked the checkbox "Request only an IPv6 prefix" on the WAN interface, since otherwise my OPNSense wouldn't have an public IPv6 Adress, only a local one.

However i noticed that basically all my devices across all networks get both a 64 public address and a 128 public address. Some use the 64, others the 128. But ipv6 tests on all devices seems good and everything seems to check out.

I basically just want to ask, if that is normal behavior? Should i be worried? Did i do something wrong?

Thanks for answers in advance.

[Greelan]

IPv6 is designed to operate with multiple host addresses, include multiple global addresses. In your case the addresses are likely being configured via SLAAC - one is temporary and the other non-temporary/stable