Using 100.0.0.0 range for router

I have my network using the 10.0.0.0 range, I have 2 NIC's on my server, my
external NIC connected to my ADSL router has the number range 100.0.0.0,
This has worked fine fort years.

the 100.0.0.0 range is not as far as I know reserved for private networks.

Is there a problem with this set up? should I change my External Nic range
to 192.168.0.0 range?

It depends on the slash, 100.0.0 could be very lager range. I would change it.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"Slim" <(E-Mail Removed)> wrote in message news:e5QX5aF%(E-Mail Removed)...
I have my network using the 10.0.0.0 range, I have 2 NIC's on my server, my
external NIC connected to my ADSL router has the number range 100.0.0.0,
This has worked fine fort years.

the 100.0.0.0 range is not as far as I know reserved for private networks.

Is there a problem with this set up? should I change my External Nic range
to 192.168.0.0 range?

Slim wrote:
> I have my network using the 10.0.0.0 range, I have 2 NIC's on my server, my
> external NIC connected to my ADSL router has the number range 100.0.0.0,
> This has worked fine fort years.
>
> the 100.0.0.0 range is not as far as I know reserved for private networks.
>
> Is there a problem with this set up? should I change my External Nic range
> to 192.168.0.0 range?

As long as you do not want to access IP-Adresses that are a part of
your 100.0.0.0 subnet (which depends on the subnetmask) you are fine.
As soon as you want to use those adresses they will not be routed to
the internet, as the are obviously yours ;-)

I'd advise you to use a "not so default" range in a private range like
192.168.214.0/24 or 10.45.96.0/24. Everybody is using 10.0.0.0/24 and
192.168.0.0/24. This could cause conflicts with fir instance your
dial-in to your workplace..

Greetz,

Trumpeteer

"Robert L [MVP - Networking]" <(E-Mail Removed)> wrote in message
news:egkohjF%(E-Mail Removed)...
It depends on the slash, 100.0.0 could be very lager range. I would change
it.
how do you mean, give it a smaller netmask?

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on
http://www.HowToNetworking.com
"Slim" <(E-Mail Removed)> wrote in message
news:e5QX5aF%(E-Mail Removed)...
I have my network using the 10.0.0.0 range, I have 2 NIC's on my server,
my
external NIC connected to my ADSL router has the number range 100.0.0.0,
This has worked fine fort years.

the 100.0.0.0 range is not as far as I know reserved for private networks.

Is there a problem with this set up? should I change my External Nic range
to 192.168.0.0 range?