On 7/25/23 06:03, Stuart Henderson wrote:
217.169.18.56 is a network address (mask it out against the netmask, the remaining "host bits" are all zeroes), you cannot use this (or the broadcast address) as a host address
I am sure you were not trying to be "technical"; but for people that don't already possess the knowledge, I just wanted to say that there are two exceptions to the rule that you shouldn't assign the network or broadcast address to a host: /31 (https://www.rfc-editor.org/rfc/rfc3021) and /32 networks. I also have a /29 network of globally routable IPv4 addresses, and I use all 8 of those precious IPs by carving out 8 /32s and assigning each one to a host.
