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Posted by Patrick Dickey on May 21, 2007, 8:47 pm
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>I have 1 gateway pc for all networks - 192.168.0.254
> ( that i can change any way)
>
>
> now i want Hierarchy like -- 1 gateway
> / \
> 1 company 2 company
> / / / /
> 1 dept 2 dept 1 dept 2 dept
> / /
> 1 lab 2 lab
>
> Now i want all network to be connected with same gateway.
> and all networks can access each others pcs ( labs, dept, companies)
>
> Plz. suggest me the ip range , which i have to prefer for the upper
> diagram.
>
> I also want that at any time i can chage ( disconnect) 2 different
> labs , with the help of command line, (As physical disconnection of
> cable is not preferable)
>
>
> Suggest me some solution that i can implement for the network
>
> Thanks
>
> Regards
>
> debug
>
Hi debug,
A little more information is needed. How many pc's, routers, and
switches will you have in the domains?
Using the 192.168.0.x range, you're limited to a maximum of 253 more devices
(assuming that you don't subnet at all). Realistically though, if you're
going to leave room for expansion, you'll probably want to use a 172.x.x.x
range. That will give you over 4,000 devices.
Twisting your current scheme a little, I would suggest the following as
possibilities (depending on your routers capabilities)....
Suggestion one...
Create 3 subnets with 30 usable hosts (31 is the 'network id' and 32 is the
broadcast domain for the subnet). The subnet mask will be 255.255.255.224
---- on one of the subnets, subnet it down until you get a 255.255.255.248
subnet. You'll end up with three devices (Gateway, Server that controls
Company 1, and Server that controls Company 2 (Gateways, if you will).
---- on the other two subnets, subnet each one of them down until you have 2
more usable subnets. Then subnet the #1 department into two more usable
subnets.
This method (and all of the other possibilities) illustrate why you need to
use a 172.x.x.x IP range. Simply because in the end, you'll have about 3 or
4 usable computers in each 'lab'. The theory is the same, except that
you'll move your .224 over one space to the left, and the .252 one space
over to the left. (although you'll probably end up with more than three
usable devices for the Gateway network.
Suggestion two (if you aren't using routers with the capability to subnet
subnets),
Subnet your IP Range into 9 subnets (definitely can't use the 192.168.0.x
range here). Tie your Gateway and the two servers that control the
companies into one subnet. On the other side of each Company server, use a
second subnet. Then as you filter down, use the rest of the subnets as
needed.
Suggestion two is VERY, VERY inefficient. You'd be better off using the
"VLSM" (Subnetting a subnet) method (suggestion 1).
This is just my opinion, that's pulled out in the spur of the moment.
Hopefully, it will at least give you some suggestions for how to go about
it.
Have a great week :-)
Patrick.
--
Smile... Someone out there cares deeply for you.
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