On Sat, 7 Jul 2012 valdis.kletnieks@vt.edu wrote:
On Sat, 07 Jul 2012 18:03:43 -0700, Randy said:
"What's the problem with using 255.255.255.247 as a subnet mask if you want to make a LAN subnet with 12 hosts?" (5 word answer)
I'm not sure if that's a typo or excessive evil on the part of the questioner. ;)
My response would be: Discontiguous subnet masks were allowed in the pre-CIDR era.
Yes, but even if it was *legal*, the "subnet doesn't contain 12 addresses" answer applies. ;)
It's just a mask...you can do all sorts of crazy things with netmasks. The results of using "unusual" ones is not typically predictable or desireable to those who might accidentally use them. ---------------------------------------------------------------------- Jon Lewis, MCP :) | I route Senior Network Engineer | therefore you are Atlantic Net | _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________