Use of Public IP address on private network

[david-flores]

Is it ok to use a public ip address such as 192.20.20.0 on a private DMZ that is NAT'ed to the public internet?

Thanks.

[vmiller]

As long as you never advertise it to the internet, but why that specific network?

[david-flores]

Its more for an easy to remember convienence reason. We have offices in several locations that are currently 172.20.0.0, 172.21.0.0, etc, the 192 address but with the same second octet helps us to easily remember what location each dmz belongs to.