A few things, network-wise, that are like urban legends;
- The limitation you speak of comes from pre-CIDR days. Modern routers do NOT have a problem with it (anything less than about 8 years old).
- Not all subnets have to be equal under CIDR. They can be different sizes, as long as the base address is even and the b'cast addr is odd. The blocksize must be a power of 2, however.
This means that a you can break a /24 into a /25, a /26, and two /27's, and assign them in any order. Beware of space fragmentation though. Like fitting blocks in a box evenly.
- The fallacy that you cannot have your own DNS root. Nothing could be further from the truth. For private secure LANs, you HAVE to have your own DNS root and your own private TLD (I actually do that here).
HTH. |
