Aligning IPv4 and IPv6 numbering I use following Class C for three network location: 192.168.16.0/20 - location 1 192.168.32.0/20 - location 2 192.168.48.0/20 - location 3 That gives 16 subnets per location, e.g. main network, guest network, IoT, DMZ, etc. The VLAN id is added to third octet, so if I use VLAN 1 and VLAN 5, it will give: 192.168.17.0/24 - main network in location 1, VLAN 1. 192.168.21.0/24 - guest netwoek in location 1, VLAN 5....
Local IP addresses in public DNS and OpenWRT rebind protection, fix address resolution First of all, I have noticed that I cannot resolve private IP addresses (RFC1918) defined in my CloudFlare DNS zone. While on the network served by OpenWRT router, I got this error: $ nslookup ****.prokop.dev *** No internal type for both IPv4 and IPv6 Addresses (A+AAAA) records available for zt33.prokop.dev Server: OpenWrt.lan Address: fd**:****:****::1 And it of course works when using network in my Belfast’s home office, which is currently served by EdgeRouter 4 (to be soon replaced by custome OpenWRT built on RPi5)....