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4

Forget about IPv4 address classes. They have been deprecated for 20+ years. If someone forces you to learn about that old classes stuff then these are the answers you might want to use: There is no Class C network that matches my address; 109.123.222.52 used to belong to Class A network 109.0.0.0; 109.123.222.52 belongs to assignment 109.123.222.0/26; If ...


3

The main curse of reused subnets is also its blessing: the subnets will not have any way to route between them, so they will never be able to talk to each other. This is bad if you want to interconnect them, but good if you want to force them to be isolated. You can still support networks services outside the NAT layers - but not behind the NAT unless ...


3

I would definitely lean towards the relay agent. While it may not be a huge concern, giving the server a NIC into that network will open up more possible security vulnerabilities (or will require more effort to lock that server's firewall down a little more. Another benefit of using the DHCP Relay is that if for some reason you need to switch your DHCP ...


1

Due to the way the reverse lookups were designed, they must be delegated on octet boundaries. The original design assumed that networks would be delegated on class boundaries, which correspond to octet boundaries. Likewise IPv6 reverse delegation is by nibble. This is why common delegations are /64, /56, and /48. RFC2316 Classless IN-ADDR.ARPA ...



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