10.0.0.0 through 10.255.255.255 (Class A Network)
172.16.0.0 through 172.31.255.255 (16 Class B Networks)
192.168.0.0 through 192.168.255.255 (256 Class C Networks)
As a refresher:
A class "A" network can have up to 16 million unique numbers.
A class "B" network can have up to 64,000 unique numbers.
A class "C" network can have up to 254 unique numbers.
"RFC 1117 Assigned Numbers" I think covers how these internal numbers
should be used, and why most routers ignore them.
Regards,
Fulton Preston
>From: Joseph Bridgewater [SMTP:Joseph@austintx.net]
>Sent: Thursday, June 05, 1997 7:00 PM
>To: ntisp@emerald.iea.com
>Subject: local-only IPs ?
>
>The question is two fold;
>1) are there other IPs (perhaps such as 11.x.x.x, 12.x.x.x and 13.x.x.x)
>that are designated for inter-use only? Or at least can be used without
>causing any sort of problems?
>
>2) and does anybody know the RFC(s) where I can read about internal-use IPs?