> different static public IP address but within the same CIDR block I have three dynamic IPs on different CIDR blocks. They'll change if the MAC address of my

> different static public IP address but within the same CIDR block I have three dynamic IPs on different CIDR blocks. They'll change if the MAC address of my firewall changes, so I wonder what happens if I swap my firewall. I wonder how strict the checks will be. I can easily send my siblings a VPN gateway with wireless using the same SSID as I do.