RE: second firewall

From: "dave dave" <daver300@xxxxxxxxxxx>
To: isalist@xxxxxxxxxxxxx
Date: Thu, 11 Dec 2003 13:10:46 +0000

hi

thankyou for your reply if i configure firewall chaining and web proxy chaining in the internal isa ,so the lan interface (school) and distribution interface (wireless nework) will be in lat table? did the users in distribution interface (wireless network)with FWC will not be affected by the new firewall isa in thier local network? they are configured to the external isa firewall,did the internal isa will acte only as a router for them to reach the external isa?when the internal isa acte as firewall client and web proxy client. second question for the authentication with AD domain controller which is located in the DMZ segment which is really a backboon relate differant lan in the domain and all the network belong to the same domain,how the internal users will be authenticate through the internal isa? is there any problem for authentication? thank you for your help

Dave

From: "Thomas W Shinder" <tshinder@xxxxxxxxxxxxxxxxxx>
Reply-To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Subject: [isalist] RE: second firewall
Date: Wed, 10 Dec 2003 18:20:55 -0600

http://www.ISAserver.org

Hi Dave,

When they install the new ISA firewall, make sure you configure it to
take advantage of Web Proxy chaining. That will provide improved
performance and security for them. They can also use firewall chaining
too.

HTH,
Tom

-----Original Message-----
From: dave dave [mailto:daver300@xxxxxxxxxxx]
Sent: Wednesday, December 10, 2003 9:01 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] second firewall

http://www.ISAserver.org

Hi

We have in our network enterprise arrays with external isa server that
act as firewall that connected to the internet and the others isa
servers acting as proxy or cache server

In each cache server (proxy) has 3 interfaces:

First interface connect to LAN network (school) users are SN only

Second interface connect to distribution LAN (wireless network) users
are FWC and SN (FWC users are configured to use the external isa,and
configured to use their local proxy)

Third interface connect to external isa

Now the school want to install firewall in their interface to protect
their network.

And here is the question? How we could do that without affecting the
users in distribution interface which have fwc configured to use the
external isa?

We need this firewall to be used only for the lan (school) interface

There is any solution with isa or its better to use another hardware
firewall in that interface?

Thanks in advance for your help

Dave

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RE: second firewall

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