A few questions about choosing private IP for your LAN

[southbeach]

I am not even sure if this is the right venue to ask these questions but here they are:

Is there a rule of thumb to follow when choosing your private LAN IP and Subnet when spread across multiple locations?

I know the obvious, each location should have a unique subnet. My office uses 192.168.10.0, this means no other office should use it.

When setting IP addresses for an office, what do you normally think of? Do you think of area code, country code, office number ???

What are the variations of private IPs one could use. I know of 10.10.x.x and 192.168.x.x - Are there others?

I need to setup VPN connection between offices, can I mix 192.168.x.x with 10.10.x.x?


I am inclined to use country code + area code but I am not sure how I could implement that. Lets say that the country code is 020 and the area code is 418 - How then could I use that in an IP or subnet?

Thanks,


--
SouthBeach
The good thing about not knowing is the opportunity to learn - Yours truly, 2008.

 

[normntwrk]

You can also use From 172.16.0.0 to 172.31.255.255

I like to keep them within the same subnet scheme myself
such as

office 1
192.168.1.x

office 2
192.168.2.x

office 3
192.168.3.x

You CAN mix them up like your example of 10.10.x.x with 192.168.x.x , you just have to take care of that with routing