Re: two subnets on one network
- From: "Herb Martin" <news@xxxxxxxxxxxxxx>
- Date: Mon, 26 Feb 2007 17:06:20 -0600
"RickyVene" <RickyVene@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:9419B3AE-AC43-4AA0-924F-F73BD9802009@xxxxxxxxxxxxxxxx
I think no one understand my question.
There's a big switch of 3comx5 configured to be one. With the
configuration
I mention above.
Mainly it is used for 2003 domain of subnet 192.168.255.255.
Part of the reason no one understands is that 192.168.255.255 is NOT a
"subnet" nor even a "subnet mask" -- which I told you in my first response.
A subnet would look (something) like 192.168.0.0, or 192.168.1.0, and
a subnet mask could be 192.168.0.0 for the first, and 255.255.255.0 for
the second subnet address.
Somehow my
technicians use the same network on my switch with subnet 192.168.20.255.
But the machine is not a domain of somekind.
Domain membership is not particularly relevent to your network
architecture for a LAN, especially if you do not have routing
enabled.
The critical piece of information that is needed (or we must guess)
is, "Does your switch route among multiple (VLAN) broadcast
domains, or is it all bridged into one big broadcast domain?".
There's not even one router because my firewall is ISA 2004 so my router
is
my firewall/server. The router is for routing to the internet.
So the switch is not routing and no routing takes places to get from one
set of machines to the other, correct?
Then you will need SOME router to allow the machines on different subnets
to realize the other machines "are there" OR you will have to create a
STATIC
ROUTE on every machine, the equivalent of:
route add 192.168.1.0 mask 255.255.255.0 192.168.2.x where x = machine ID.
(for example on 192.168.2.0 machines)
Internal
network is using subnet mask of 255.255.0.0 and 255.255.255.0.
Easier would likely be to just change all of the subnet masks to 255.255.0.0
as I also told you earlier.
This will cause no problem as long as you are doing NO internal ROUTING
among the 192.168.0.0 machines but using only layer-2 on the same broadcast
domain.
It is connected on the same switch. One switch with two subnets.
Switch is a VERY IMPRECISE term as there are three major types:
router-switch, layer-2 swich, and hybrids between the two where
custom VLANs are possible.
I hope this clear to everyone and thanks in advance.
Please advise if this is making complication on my 2003 domain.
Only to the extent that it causes connectivity problems. Windows
domain machines must be able to route and resolve names between
each other to function correctly
--
Herb Martin, MCSE, MVP
http://www.LearnQuick.Com
(phone on web site)
.
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