Not necessarily, you can use ISL to carry all three VLANs across a single
link.
You can also use an RSM in Cat5xxx and do the routing directly on the switch
via virtual router interfaces.
To answer your other questions, your default gateway is whatever IP address
in each subnet that you want it to be (most people use the first assignable
address in the subnet). You configure your DHCP server, or you manually
configure your clients to point to it. Hosts will know that if they want to
reach another PC on another subnet, they have to go through their default
gateway (you should research the ARP process).
My question is this though, with only 30 hosts per floor, do you really need
to seperate them off into seperate subnets? Is there some sort of security
requirement that you are dealing with? Why not just leave them in one
subnet?
Irwin
-----Original Message-----
From: Apoorva S.Malavia [mailto:[EMAIL PROTECTED]]
Sent: Friday, July 07, 2000 4:43 PM
To: [EMAIL PROTECTED]
Subject: Re: Connecting 3 subnets with Cisco routers??
You need a router with 3 eth interfaces.
break it down into 3 subnets. Routing between subnets will be done by the
router
automatically.
As far as subnetting goes, pck up a book and read up on it or go to cisco's
web
site.
-Apoorva
Niraj Palikhey wrote:
> Hi,
> If you are given a Class C network, eg. 207.96.46.0 and you had to create
3
> subnets for 3 floors of your bldg., how would you use routers to connect
> these 3 subnets and go out on the Internet? (Without using any internal
> addresses ie 10, 172, 192). I know that the mask is going to be
> 255.255.255.224 with 30 hosts on each subnet. My question is, do you
connect
> these 3 subnets using the Ethernet interfaces or using the serial? And if
> you use either, what would be the ip addressess for the default gateways
on
> all 3 subnets? How would the hosts on each subnet know how to get to the
> other subnet?
> Please advise.
> Thank you.
> Kind regards,
> [EMAIL PROTECTED]
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