Re: Connection Second NIC-Newbie Question
- From: "Kevin S.. Malinowski" <Kevin@xxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Mon, 24 Dec 2001 13:10:13 -0700
To put this in perspective. ISA, simply put, is a firewall. Thus, you want the
firewall between your clients and the internet.
Your ISA server requires at least two Network Cards.
NIC1: Public side of the ISA server (connected to your DSL Modem)
NIC2: Private side of the ISA server (connected to your internal LAN)
All of your clients can connect uing a hub/switch connected to the ISA server
which will process all of the requests to the internet for you. The Linksys
router becomes redundant, you can still use the 4 port 10/100 (if it is the
four port version) switch as your switch (you may want to turn off the DHCP
server on the Linksys router).
This means that NIC2 connects to the switch and the clients connect through the
switch to the ISA server. You can then configure the ISA server to allow secure
NAT, Web Proxy, Firewall services for all your clients or a combination of the
previous three.
HTH
Kevin
-----Original Message-----
From: Adrian Thompson [mailto:adeythom@xxxxxxxx]
Sent: Monday, December 24, 2001 12:49 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: Connection Second NIC-Newbie Question
http://www.ISAserver.org
I think (and i'm perfectly prepared to be proved wrong!) that you'd have to
have the ADSL modem connected directly to the ISA server, with a cable from
the second NIC out to the router, and the clients - if you plug the router
(and the clients) straight into the ADSL , there doesn't seem to be any
great benefit from using ISA in the first place.
If you go :
NIC1 ADSL to ISA Server
NIC2 ISA Server to Router (and to clients)
Then you can use the caching, content management and reporting. functions of
ISA (among all the other things it can do!)
That's how our system's set up (although we plug into a 2Mb link, I'm
assuming the theory's pretty similar)
Happy Christmas!
Adrian Thompson
http://www.laisterdykehigh.org.uk (work)
http://www.adie.co.uk (fun!)
----- Original Message -----
From: "Hugh Anderson" <webmaster@xxxxxxxxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Sent: Monday, December 24, 2001 7:14 PM
Subject: [isalist] Connection Second NIC-Newbie Question
> http://www.ISAserver.org
>
>
> I am running Small Business Server on three machines. The server machine
> has a single NIC connected to a LinkSys Router, and sharing an ADSL
> connection with the modem connected to the router. I want to enable ISA
> Server, but the installation routine tells me I need a second NIC to make
> this work. I have a second NIC in the machine, not connected to anything
> at the moment. My question is undoubtedly silly, but what do I connect the
> second NIC to - do I use a vacant port on the router? The two client
> machines are also connected to ports on the router.
> Help, and thanks in advance.
>
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