Domain forward for /8 in-addr.arpa not working

[Jeremy Beker via Unbound-users]

Hello friends! I have recently started using tailscale and am working to integrate their MagicDNS into my home setup. I use unbound via opnsense and am hitting an issue. I have successfully set up a forward-zone for my `ts.net` domain to tailscale’s DNS and it works great. I want to do the same for reverse lookups. All tailscale addresses are in the 100.0.0.0/8 range. So I added the following to my config (via the GUI, but verified in the config file): — # Forward zones forward-zone:   name: "100.in-addr.arpa"   forward-addr: 100.100.100.100 — This does not seem to work. Any request to look up an address (like 100.94.184.34) returns: Host 34.184.94.100.in-addr.arpa not found: 3(NXDOMAIN) If I do the /16 subdomain like: — # Forward zones forward-zone:   name: "94.100.in-addr.arpa"   forward-addr: 100.100.100.100 — It works just fine. Am I not allowed to forward an /8 in-addr.arpa? Thanks in advance! -Jeremy ---- Jeremy Beker - goth...@confusticate.com http://www.confusticate.com Condensing fact from the vapor of nuance.