Re: 192.168 - why?

Hello All,

Antonio Macchi wrote:


excuse me... my stupid answer

i mean:
you *always* have the same number of free addresses... independently on
what class you choose.






It's all a matter of conventions.....

In the early days of internet, it was decided that there are networks with
16 millions of hosts, networks with 64k hosts or networks with 254 hosts.

Hosts within a "network" can reach each other without routing and reply to
broadcast packages.
The class is determined by the first number of the IP address.


In addition, it was decided that 10.0.0.0 with 16M hosts,
172.(16-31).mmm.nnn with 64K hosts and 192.168.mmm.nnn with 254 hosts will
never be used on the internet and are free for local LAN use.

As long as your ISP gives you a routable Internet address and does not
put you into another non-routable network, you are free to do what you want
behind your NAT router, as long as you use one of the "free" ranges.

A 10.0.0.0/8 network will have the same performance as a 192.68.0.0/24
network and the same as a 10.0.0.0/24 network, you will only violate a
convention in the last case....

You should only be careful in case of VPN's, if a main office has VPN
connections to local offices, you have some routing problems if several
offices use 10.0.0.0/8 in their LANS...

Kind Regards,
H.Janssen






Technically, there is no difference at all.

.

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