Adding IPv6 private address range to the Home Networks

Started by Diggy, March 12, 2026, 07:12:07 PM

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We are using private IPv6 addresses along with IPv4 addresses on our local network.  I noticed that the IPv6 range "fc00::0/7" is not included in the default Home Networks list.  Why?  Does "Home Networks" not apply to IPv6?  Are there any special considerations when adding "fc00::0/7" to the Home Networks list?

In advance, thanks for guidance on this matter.

Link local IPv6s fe80::/64 don't need blocking, since they won't be routed anyway.


However, I did add my static /48 prefix I got from my ISP to my "local Network" alias, so that traffic to other VLANs is blocked.

fc00::/7 is ULA, not link local.
Deciso DEC750
People who think they know everything are a great annoyance to those of us who do. (Isaac Asimov)

True. But I assume that the clients only get link lokal from RA?

The OP stated that they are using ULA and asked if they should add that address range to the "Home Networks" list. I don't understand why you mention link local at all?
Deciso DEC750
People who think they know everything are a great annoyance to those of us who do. (Isaac Asimov)


Maybe they are using RA to distribute ULA ...
Deciso DEC750
People who think they know everything are a great annoyance to those of us who do. (Isaac Asimov)